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Lloyd Sumner

Lloyd Sumner

Professor, Biochemistry; Director, Metabolomics Center

Phone: 573-882-5486
sumnerlw@missouri.edu
240d MU Bond Life Sciences Center

The research focus of the Sumner lab includes the development of cutting-edge technologies for large-scale biochemical profiling of plant metabolites (ie metabolomics) and integrating these with transcriptomics. These technologies are then applied in a symbiotic manner for plant gene discovery, gene characterization and the elucidation of mechanistic responses to external stimuli; especially related to plant specialized metabolism or plant natural products biosynthesis. Technology enables the biology and the biology drives technology development. Current technology development projects include the development of a sophisticated and integrated ensemble including UHPLC-MS-SPE-NMR for the systematic and biologically driven annotation of plant metabolomes. This suite of tools is being applied to better understand carbon sequestration in cell wall lignin and lipids. The Sumner lab is also currently using integrated metabolomics for the discovery and characterization of triterpene saponin biosynthetic genes in the model legume Medicago truncatula. We have proven success in using this technology for a better understanding of natural products including flavonoids, isoflavonoids, terpenoids, and waxes.

The Sumner lab has a long and proven history of productive collaboration and has recently relocated to the University of Missouri where they are establishing a new University of Missouri Metabolomics Center (UMMC) to further enhance and enable additional collaborations. The UMMC will also provide regular training courses and continual educational opportunities for collaborators. Although Dr. Sumner spent most of the past 16 years at private, non-degree granting research institute, the Sumner lab has hosted approximately 20 undergraduate researchers over the years and welcomes the opportunity for more. The Sumner lab has also hosted approximate 15, one-week long, hands-on annual workshops that provided in-depth metabolomics and proteomics training for approximately 300 graduate students, postdocs, professional staff and faculty.

The Sumner lab is an internationally recognized leader in plant metabolomics, plant proteomics, and plant natural product biochemistry. Dr. Sumner has served as the President and Treasurer of the Metabolomics Society. Dr. Sumner is also the Principal Investigator of a recent Plant, Algae, and Microbial Research Coordination network initiative and he is the current President of the Phytochemical Society of America.

News about Lloyd Sumner

2022

NP-MRD: The Natural Products Magnetic Resonance Database. Wishart D.S.,Sayeeda Z.,Budinski Z.,Guo A.,Lee B.L.,Berjanskii M.,Rout M.,Peters H.,Dizon R.,Mah R.,Torres-Calzada C.,Hiebert-Giesbrecht M. Varshavi D., Varshavi D.,Oler E.,Allen D.,Cao X.,Gautam V.,Maras A.,Poynton E.F.,Tavangar P.,Yang V.,Van Santen J.A.,Ghosh R.,Sarma S. ,Knutson E.,Sullivan V.,Jystad A.M.,Renslow R.,Sumner L.W.,Linington R.G.,Cort J.R.. Nucleic Acids Research; Volume 50, Issue D1, Pages D665 - D677.

Date published: January 7, 2022
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2021

An optimized spme-gc-ms method for volatile metabolite profiling of different alfalfa (Medicago sativa l.) tissues. Yang D.-S., Lei Z., Bedair M., Sumner L.W.. Molecules; Volume 26, Issue 21.

Date published: November 1, 2021
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Recent Developments Toward Integrated Metabolomics Technologies (UHPLC-MS-SPE-NMR and MicroED) for Higher-Throughput Confident Metabolite Identifications. Ghosh R, Bu G, Nannenga BL, Sumner LW. Frontiers in Molecular Biosciences; 8:720955.

Date published: September 2, 2021
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Bridging the gap between analytical and microbial sciences in microbiome research. Quinn RA, Hagiwara KA, Liu K, Goudarzi M, Pathmasiri W, Sumner LW, Metz TO. mSystems; 6(5):e00585-21.

Date published: September 1, 2021
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Mass spectrometry-based metabolomics: a guide for annotation, quantification and best reporting practices. Alseekh S, Aharoni A, Brotman Y, Contrepois K, D'Auria J, Ewald J, C Ewald J, Fraser PD, Giavalisco P, Hall RD, Heinemann M, Link H, Luo J, Neumann S, Nielsen J, Perez de Souza L, Saito K, Sauer U, Schroeder FC, Schuster S, Siuzdak G, Skirycz A, Sumner LW, Snyder MP, Tang H, Tohge T, Wang Y, Wen W, Wu S, Xu G, Zamboni N, Fernie AR. Nature Methods; 18(7):747-756.

Date published: July 1, 2021
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A medicago truncatula metabolite atlas enables the visualization of differential accumulation of metabolites in root tissues. Kranawetter C, Zeng S, Joshi T, Sumner LW. Metabolites; 11(4):238.

Date published: April 1, 2021
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2020

Developmental exposure of California mice to endocrine disrupting chemicals and potential effects on the microbiome-gut-brain axis at adulthood. Kaur S, Sarma SJ, Marshall BL, Liu Y, Kinkade JA, Bellamy MM, Mao J, Helferich WG, Schenk AK, Bivens NJ, Lei Z, Sumner LW, Bowden JA, Koelmel JP, Joshi T, Rosenfeld CS. Scientific Reports; 10(1):10902.

Date published: December 1, 2020
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Author Correction: Developmental exposure of California mice to endocrine disrupting chemicals and potential effects on the microbiome-gut-brain axis at adulthood (Scientific Reports, (2020), 10, 1, (10902), 10.1038/s41598-020-67709-9). Kaur S, Sarma SJ, Marshall BL, Liu Y, Kinkade JA, Bellamy MM, Mao J, Helferich WG, Schenk AK, Bivens NJ, Lei Z, Sumner LW, Bowden JA, Koelmel JP, Joshi T, Rosenfeld CS. Scientific Reports; 10(1):12524.

Date published: December 1, 2020
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Protein Precipitation to Remove Carbohydrates that Interfere in Protein-Bound Tryptophan Quantification in Soybean Seeds. Lei Z, Kumar S, Sarma SJ, Kumar R, Sumner BW, Stacey MG, Sumner LW. Journal of Analysis and Testing; 4(3):238-247.

Date published: July 1, 2020
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Integration of genomics, metagenomics, and metabolomics to identify interplay between susceptibility alleles and microbiota in adenoma initiation. Moskowitz JE, Doran AG, Lei Z, Busi SB, Hart ML, Franklin CL, Sumner LW, Keane TM, Amos-Landgraf JM. BMC Cancer; 20(1):600.

Date published: June 29, 2020
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Role of cytosolic, tyrosine-insensitive prephenate dehydrogenase in Medicago truncatula. Schenck CA, Westphal J, Jayaraman D, Garcia K, Wen J, Mysore KS, Ané J-M, Sumner LW, Maeda HA. Plant Direct; 4(5):e00218.

Date published: May 1, 2020
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Identification of health-promoting bioactive phenolics in black walnut using cloud-based metabolomics platform. Vu DC, Park J, Ho K-V, Sumner LW, Lei Z, Greenlief CM, Mooney B, Coggeshall MV, Lin C-H. Journal of Food Measurement and Characterization; 14(2):770-777.

Date published: April 1, 2020
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Identification and Quantification of Bioactive Molecules Inhibiting Pro-inflammatory Cytokine Production in Spent Coffee Grounds Using Metabolomics Analyses. Ho K-V, Schreiber KL, Park J, Vo PH, Lei Z, Sumner LW, Brown CR, Lin C-H. Frontiers in Pharmacology; 11:229.

Date published: March 6, 2020
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Bisphenol A and bisphenol S disruptions of the mouse placenta and potential effects on the placenta-brain axis. Mao J, Jain A, Denslow ND, Nouri M-Z, Chen S, Wang T, Zhu N, Koh J, Sarma SJ, Sumner BW, Lei Z, Sumner LW, Bivens NJ, Michael Roberts R, Tuteja G, Rosenfeld CS. Proceedings of the National Academy of Sciences of the United States of America; 117(9):4642-4652.

Date published: March 3, 2020
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Nontargeted fecal metabolomics: An emerging tool to probe the role of the gut microbiome in host health. Sarma SJ, Lei Z, Rosenfeld CS, Ericsson A, Sumner LW. Bioanalysis; 12(6):351-353.

Date published: March 1, 2020
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Proteomic and Metabolomic Analysis of Azospirillum brasilense ntrC Mutant under High and Low Nitrogen Conditions. Kukolj C, Pedrosa FO, De Souza GA, Sumner LW, Lei Z, Sumner B, Do Amaral FP, Juexin W, Trupti J, Huergo LF, Monteiro RA, Valdameri G, Stacey G, De Souza EM. Journal of Proteome Research; 19(1):92-105.

Date published: January 3, 2020
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Generation of a collision cross section library for multi-dimensional plant metabolomics using UHPLC-trapped ion mobility-MS/MS. Schroeder M, Meyer SW, Heyman HM, Barsch A, Sumner LW. Metabolites; 10(1):13.

Date published: January 1, 2020
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Allelopathic potential of rice and identification of published allelochemicals by cloud-based metabolomics platform. Ho TL, Nguyen TTC, Vu DC, Nguyen NY, Nguyen TTT, Phong TNH, Nguyen CT, Lin C-H, Lei Z, Sumner LW, Le VV. Metabolites; 10(6):1-20.

Date published: January 1, 2020
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2019

12-Hydroxy-Jasmonoyl-l-Isoleucine Is an Active Jasmonate That Signals through CORONATINE INSENSITIVE 1 and Contributes to the Wound Response in Arabidopsis. Poudel AN, Holtsclaw RE, Kimberlin A, Sen S, Zeng S, Joshi T, Lei Z, Sumner LW, Singh K, Matsuura H, Koo AJ. Plant and Cell Physiology; 60(10):2152-2166.

Date published: October 1, 2019
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Ectopic defense gene expression is associated with growth defects in medicago truncatula lignin pathway mutants. Ha CM, Fine D, Bhatia A, Rao X, Martin MZ, Engle NL, Wherritt DJ, Tschaplinski TJ, Sumner LW, Dixon RA. Plant Physiology; 181(1):63-84.

Date published: September 1, 2019
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Early genistein exposure of California mice and effects on the gut microbiota-brain axis. Marshall BL, Liu Y, Farrington MJ, Mao J, Helferich WG, Schenk AK, Bivens NJ, Sarma SJ, Lei Z, Sumner LW, Joshi T, Rosenfeld CS. Journal of Endocrinology; 242(2):139-157.

Date published: August 1, 2019
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Integrated metabolomics identifies CYP72A67 and CYP72A68 oxidases in the biosynthesis of Medicago truncatula oleanate sapogenins. Tzin V, Snyder JH, Yang DS, Huhman DV, Watson BS, Allen SN, Tang Y, Miettinen K, Arendt P, Pollier J, Goossens A, Sumner LW. Metabolomics; 15(6):85.

Date published: June 1, 2019
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Large-scale profiling of saponins in different ecotypes of Medicago truncatula. Lei Z, Watson BS, Huhman D, Yang DS, Sumner LW. Frontiers in Plant Science; 10:850.

Date published: May 31, 2019
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UHPLC-MS Analyses of Plant Flavonoids. Lei Z, Sumner BW, Bhatia A, Sarma SJ, Sumner LW. Current protocols in plant biology; 4(1):e20085.

Date published: March 1, 2019
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Identification and quantification of phytosterols in black walnut kernels. Vu DC, Lei Z, Sumner LW, Coggeshall MV, Lin C-H. Journal of Food Composition and Analysis; 75:61-69.

Date published: January 1, 2019
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UHPLC-QTOF-MS/MS-SPE-NMR: A Solution to the Metabolomics Grand Challenge of Higher-Throughput, Confident Metabolite Identifications. Bhatia A, Sarma SJ, Lei Z, Sumner LW. Methods in Molecular Biology; 2037:113-133.

Date published: January 1, 2019
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Black Walnut (Juglans nigra) Extracts Inhibit Proinflammatory Cytokine Production from Lipopolysaccharide-Stimulated Human Promonocytic Cell Line U-937. Ho K-V, Schreiber KL, Vu DC, Rottinghaus SM, Jackson DE, Brown CR, Lei Z, Sumner LW, Coggeshall MV, Lin C-H. Frontiers in Pharmacology; 10(SEP):1059.

Date published: January 1, 2019
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2018

MetExpert: An expert system to enhance gas chromatography‒mass spectrometry-based metabolite identifications. Qiu F, Lei Z, Sumner LW. Analytical Chimica Acta; 1037:316-326.

Date published: December 11, 2018
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Metabolomics of two pecan varieties provides insights into scab resistance. Lei Z, Kranawetter C, Sumner BW, Huhman D, Wherritt DJ, Thomas AL, Rohla C, Sumner LW. Metabolites; 8(4):56.

Date published: December 1, 2018
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Identifying antibacterial compounds in black walnuts (Juglans nigra) using a metabolomics approach. Ho K-V, Lei Z, Sumner LW, Coggeshall MV, Hsieh H-Y, Stewart GC, Lin C-H. Metabolites; 8(4):58.

Date published: December 1, 2018
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Soy-Induced Fecal Metabolome Changes in Ovariectomized and Intact Female Rats: Relationship with Cardiometabolic Health. Veira-Potter VJ, Cross T-WL, Swanson KS, Sarma SJ, Lei Z, Sumner LW, Rosenfeld CS. Scientific Reports; 8(1):16896.

Date published: December 1, 2018
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Abatement of 2,4-D by H₂O₂ solar photolysis and solar photo-Fenton-like process with minute Fe(III) concentrations. Serra-Clusellas A, De Angelis L, Lin C-H, Vo P, Bayati M, Sumner L, Lei Z, Amaral NB, Bertini LM, Mazza J, Pizzio LR, Stripeikis JD, Rengifo-Herrera JA, Fidalgo de Cortalezzi MM. Water Research; 144:572-580.

Date published: November 1, 2018
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Pathway-specific metabolome analysis with ¹⁸ O ₂ -labeled Medicago truncatula via a mass spectrometry-based approach. Kera K, Find DD, Wherritt DJ, Nagashima Y, Shimada N, Ara T, Ogata Y, Sumner LW, Suzuki H. Metabolomics; 14(5):71.

Date published: May 1, 2018
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Seminal fluid metabolome and epididymal changes after antibiotic treatment in mice. Rosenfeld CS, Javurek AB, Johnson SA, Lei Z, Sumner LW, Hess RA. Reproduction; 156(1):1-10.

Date published: January 1, 2018
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2017

Medicago truncatula Oleanolic-Derived Saponins Are Correlated with Caterpillar Deterrence. Cai F, Watson BS, Meek D, Huhman DV, Wherritt DJ, Ben C, Gentzbittel L, Driscoll BT, Sumner LW, Bede JC. Journal of Chemical Ecology; 43(7):712-724.

Date published: July 1, 2017
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2016

Malonylation of glucosylated N-lauroylethanolamine: A new pathway that determines N-acylethanolamine metabolic fate in plants. Khan BR, Wherritt DJ, Huhman D, Sumner LW, Chapman KD, Blancaflor EB. Journal of Biological Chemistry; 291(53):27112-27121.

Date published: December 30, 2016
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PlantMAT: A metabolomics tool for predicting the specialized metabolic potential of a system and for large-scale metabolite identifications. Qiu F, Fine DD, Wherritt DJ, Lei Z, Sumner LW. Analytical Chemistry; 88(23):11373-11383.

Date published: December 6, 2016
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Jasmonate-mediated stomatal closure under elevated CO₂ revealed by time-resolved metabolomics. Geng S, Misra BB, de Armas E, Huhman DV, Alborn HT, Sumner LW, Chen S. Plant Journal; 88(6):947-962.

Date published: December 1, 2016
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The time is right to focus on model organism metabolomes. Edison AS, Hall RD, Junot C, Karp PD, Kurland IJ, Mistrik R, Reed LK, Saito K, Salek RM, Steinbeck C, Sumner LW, Viant MR. Metabolites; 6(1):8.

Date published: January 1, 2016
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2015

Loss of function of folylpolyglutamate synthetase 1 reduces lignin content and improves cell wall digestibility in Arabidopsis. Srivastava AC, Chen F, Ray T, Pattathil S, Peña MJ, Avci U, Li H, Huhman DV, Backe J, Urbanowicz B, Miller JS, Bedair M, Wyman CE, Sumner LW, York WS, Hahn MG, Dixon RA, Blancaflor EB, Tang Y. Biotechnology for Biofuels; 8(1):403.

Date published: December 21, 2015
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Retention projection enables accurate calculation of liquid chromatographic retention times across labs and methods. Abate-Pella D, Freund DM, Ma Y, Simón-Manso Y, Hollender J, Broeckling CD, Huhman DV, Krokhin OV, Stoll DR, Hegeman AD, Kind T, Fiehn O, Schymanski EL, Prenni JE, Sumner LW, Boswell PG. Journal of Chromatography A; 1412:43-51.

Date published: September 18, 2015
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MET-XAlign: A Metabolite Cross-Alignment Tool for LC/MS-Based Comparative Metabolomics. Zhang W, Lei Z, Huhman D, Sumner LW, Zhao PX. Analytical Chemistry; 87(18):9114-9119.

Date published: September 15, 2015
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Metabolite profiles of essential oils in citrus peels and their taxonomic implications. Jing L, Lei Z, Zhang G, Pilon AC, Huhman DV, Xie R, Xi W, Zhou Z, Sumner LW. Metabolomics; 11(4):952-963.

Date published: August 22, 2015
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Construction of an Ultrahigh Pressure Liquid Chromatography-Tandem Mass Spectral Library of Plant Natural Products and Comparative Spectral Analyses. Lei Z, Jing L, Qiu F, Zhang H, Huhman D, Zhou Z, Sumner LW. Analytical Chemistry; 87(14):7373-7381.

Date published: July 21, 2015
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Integrated metabolomics and transcriptomics reveal enhanced specialized metabolism in Medicago truncatula root border cells. Watson BS, Bedair MF, Urbanczyk-Wochniak E, Huhman DV, Yang DS, Allen SN, Li W, Tang Y, Sumner LW. Plant Physiology; 167(4):1699-1716.

Date published: April 1, 2015
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Patterns of metabolite changes identified from large-scale gene perturbations in arabidopsis using a genome-scale metabolic network. Kim T, Dreher K, Nilo-Poyanco R, Lee I, Fiehn O, Lange BM, Nikolau BJ, Sumner L, Welti R, Wurtele ES, Rhee SY. Plant Physiology; 167(4):1685-1698.

Date published: April 1, 2015
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Modern plant metabolomics: Advanced natural product gene discoveries, improved technologies, and future prospects. Sumner LW, Lei Z, Nikolau BJ, Saito K. Natural Product Reports; 32(2):212-229.

Date published: February 1, 2015
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2014

Global reprogramming of transcription and metabolism in Medicago truncatula during progressive drought and after rewatering. Zhang J-Y, Cruz De Carvalho MH, Torres-Jerez I, Kang Y, Allen SN, Huhman DV, Tang Y, Murray J, Sumner LW, Udvardi MK. Plant, Cell and Environment; 37(11):2553-2576.

Date published: November 1, 2014
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Proposed quantitative and alphanumeric metabolite identification metrics. Sumner LW, Lei Z, Nikolau BJ, Saito K, Roessner U, Trengove R. Metabolomics; 10(6):1047-1049.

Date published: October 30, 2014
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MET-COFEA: A liquid chromatography/mass spectrometry data processing platform for metabolite compound feature extraction and annotation. Zhang W, Chang J, Lei Z, Huhman D, Sumner LW, Zhao PX. Analytical Chemistry; 86(13):6245-6253.

Date published: July 1, 2014
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Metabolite identification: are you sure? And how do your peers gauge your confidence?. Creek DJ, Dunn WB, Fiehn O, Griffin JL, Hall RD, Lei Z, Mistrik R, Neumann S, Schymanski EL, Sumner LW, Trengove R, Wolfender J-L. Metabolomics; 10(3):350-353.

Date published: June 1, 2014
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Antifungal activity of citrus essential oils. Jing L, Lei Z, Li L, Xie R, Xi W, Guan Y, Sumner LW, Zhou Z. Journal of Agricultural and Food Chemistry; 62(14):3011-3033.

Date published: April 9, 2014
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2013

Retention projection enables reliable use of shared gas chromatographic retention data across laboratories, instruments, and methods. Barnes BB, Wilson MB, Carr PW, Vitha MF, Broeckling CD, Heuberger AL, Prenni J, Janis GC, Corcoran H, Snow NH, Chopra S, Dhandapani R, Tawfall A, Sumner LW, Boswell PG. Analytical Chemistry; 85(23):11650-11657.

Date published: December 3, 2013
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Identification of antioxidants in methanol extracts from soymilk. Zhang H, Sumner L, Lei Z-T, Huhman D, Watson B, Fu F-Y, Yu J. Modern Food Science and Technology; 29(8):1999-2003.

Date published: August 1, 2013
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Characterization of the formation of branched short-chain fatty acid:coas for bitter acid biosynthesis in hop glandular trichomes. Xu H, Zhang F, Liu B, Huhman DV, Sumner LW, Dixon RA, Wang G. Molecular Plant; 6(4):1301-1317.

Date published: July 1, 2013
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Medicago glucosyltransferase UGT72L1: Potential roles in proanthocyanidin biosynthesis. Pang Y, Cheng X, Huhman DV, Ma J, Peel GJ, Yonekura-Sakakibara K, Saito K, Shen G, Sumner LW, Tang Y, Wen J, Yun J, Dixon RA. Planta; 238(1):139-154.

Date published: July 1, 2013
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Sub-cellular proteomics of Medicago truncatula. Lee J, Lei Z, Watson BS, Sumner LW. Frontiers in Plant Science; 4(APR):112.

Date published: April 30, 2013
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Suppression of plant defense responses by extracellular metabolites from Pseudomonas syringae pv. tabaci in Nicotiana benthamiana. Lee S, Yang DS, Uppalapati SR, Sumner LW, Mysore KS. BMC Plant Biology; 13(1):65.

Date published: April 18, 2013
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Influence of host chloroplast proteins on Tobacco mosaic virus accumulation and intercellular movement. Bhat S, Folimonova SY, Cole AB, Ballard KD, Lei Z, Watson BS, Sumner LW, Nelson RS. Plant Physiology; 161(1):134-147.

Date published: January 1, 2013
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The molecular and enzymatic basis of bitter/non-bitter flavor of citrus fruit: Evolution of branch-forming rhamnosyltransferases under domestication. Frydman A, Liberman R, Huhman DV, Carmeli-Weissberg M, Sapir-Mir M, Ophir R, Sumner LW, Eyal Y. Plant Journal; 73(1):166-178.

Date published: January 1, 2013
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Functional characterization of proanthocyanidin pathway enzymes from tea and their application for metabolic engineering. Pang Y, Abesinghe ISB, He J, He X, Huhman D, Mudith Mewan K, Sumner LW, Yun J, Dixon RA. Plant Physiology; 161(3):1103-1116.

Date published: January 1, 2013
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2012

Root Secreted Metabolites and Proteins Are Involved in the Early Events of Plant-Plant Recognition Prior to Competition. Badri DV, de-la-Peña C, Lei Z, Manter DK, Chaparro JM, Guimarães RL, Sumner LW, Vivanco JM. PLoS ONE; 7(10):e46640.

Date published: October 2, 2012
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MET-IDEA version 2.06; improved efficiency and additional functions for mass spectrometry-based metabolomics data processing. Lei Z, Li H, Chang J, Zhao PX, Sumner LW. Metabolomics; 8:105-110.

Date published: June 1, 2012
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Characterization of an isoflavonoid-specific prenyltransferase from Lupinus albus. Shen G, Huhman D, Lei Z, Snyder J, Sumner LW, Dixon RA. Plant Physiology; 159(1):70-80.

Date published: May 1, 2012
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Expression of a bacterial feedback-insensitive 3-deoxy-d-arabino-heptulosonate 7-phosphate synthase of the shikimate pathway in Arabidopsis elucidates potential metabolic bottlenecks between primary and secondary metabolism. Tzin V, Malitsky S, Zvi MMB, Bedair M, Sumner L, Aharoni A, Galili G. New Phytologist; 194(2):430-439.

Date published: April 1, 2012
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Metabolomics as a hypothesis-generating functional genomics tool for the annotation of Arabidopsis thaliana genes of “unknown function”. Quanbeck SM, Brachova L, Campbell AA, Guan X, Perera A, He K, Rhee SY, Bias P, Dickerson JA, Dixon P, Wohlgemuth G, Fiehn O, Barkan L, Lange I, Markus Lange B, Lee I, Cortes D, Salazar C, Shuman J, Shulaev V, Huhman DV, Sumner LW, Roth MR, Welti R, Ilarslan H, Wurtele ES, Nikolau BJ. Frontiers in Plant Science; 3(FEB):15.

Date published: February 10, 2012
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2011

Suppression of phospholipase Dγs confers increased aluminum resistance in Arabidopsis thaliana. Zhao J, Wang C, Bedair M, Welti R, Sumner L, Baxter I, Wang X. PLoS ONE; 6(12):e28086.

Date published: December 7, 2011
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A large-scale genetic screen in Arabidopsis to identify genes involved in pollen exine production. Dobritsa AA, Geanconteri A, Shrestha J, Carlson A, Kooyers N, Coerper D, Urbanczyk-Wochniak E, Bench BJ, Sumner LW, Swanson R, Preuss D. Plant Physiology; 157(2):947-970.

Date published: October 1, 2011
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A lysozyme with antifungal activity from Pithecellobium dulce seeds. Sawasdipuksa N, Lei Z, Sumner LW, Niyomploy P, Sangvanicha P. Food Technology and Biotechnology; 49(4):489-494.

Date published: October 1, 2011
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Methyl jasmonate induces ATP biosynthesis deficiency and accumulation of proteins related to secondary metabolism in Catharanthus roseus (L.) G. Hairy Roots. Ruiz-May E, De-La-Peña C, Galaz-Ávalos RM, Lei Z, Watson BS, Sumner LW, Loyola-Vargas VM. Plant and Cell Physiology; 52(8):1401-1421.

Date published: August 1, 2011
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Mass spectrometry strategies in metabolomics. Lei Z, Huhman DV, Sumner LW. Journal of Biological Chemistry; 286(29):25435-25442.

Date published: July 22, 2011
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A legume specific protein database (LegProt) improves the number of identified peptides, confidence scores and overall protein identification success rates for legume proteomics. Lei Z, Dai X, Watson BS, Zhao PX, Sumner LW. Phytochemistry; 72(10):1020-1027.

Date published: July 1, 2011
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STENOFOLIA regulates blade outgrowth and leaf vascular patterning in medicago truncatula and nicotiana sylvestris. Tadege M, Lin H, Bedair M, Berbel A, Wen J, Rojas CM, Niu L, Tang Y, Sumner L, Ratet P, McHale NA, Madueño F, Mysore KS. Plant Cell; 23(6):2125-2142.

Date published: June 1, 2011
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MATE2 mediates vacuolar sequestration of flavonoid glycosides and glycoside malonates in Medicago truncatula. Zhao J, Huhman D, Shadle G, He X-Z, Sumner LW, Tang Y, Dixon RA. Plant Cell; 23(4):1536-1555.

Date published: April 1, 2011
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Spatially Resolved Plant Metabolomics. Sumner LW, Yang DS, Bench BJ, Watson BS, Li C, Daniel Jones A. Annual Plant Reviews Volume 43: Biology of Plant Metabolomics; 43:343-366.

Date published: March 17, 2011
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The folylpolyglutamate synthetase plastidial isoform is required for postembryonic root development in Arabidopsis. Srivastava AC, Ramos-Parra PA, Bedair M, Robledo-Hernández AL, Tang Y, Sumner LW, Díaz de la Garza RI, Blancaflor EB. Plant Physiology; 155(3):1237-1251.

Date published: March 1, 2011
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2010

Comparative proteomics of yeast-elicited medicago truncatula cell suspensions reveals induction of isoflavonoid biosynthesis and cell wall modifications. Lei Z, Chen F, Watson BS, Nagaraj S, Elmer AM, Dixon RA, Sumner LW. Journal of Proteome Research; 9(12):6220-6231.

Date published: December 3, 2010
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Nonflowering plants possess a unique folate-dependent phenylalanine hydroxylase that is localized in chloroplasts. Pribat A, Noiriel A, Morse AM, Davis JM, Fouquet R, Loizeau K, Ravanel S, Frank W, Haas R, Reski R, Bedair M, Sumner LW, Hansona AD. Plant Cell; 22(10):3410-3422.

Date published: October 1, 2010
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Root secretion of defense-related proteins is development-dependent and correlated with flowering time. De-la-Peña C, Badri DV, Lei Z, Watson BS, Branda MM, Silva-Filho MC, Sumner LW, Vivanco JM. Journal of Biological Chemistry; 285(40):30654-30665.

Date published: October 1, 2010
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Soybean metabolites regulated in root hairs in response to the symbiotic bacterium Bradyrhizobium japonicum. Brechenmacher L, Lei Z, Libault M, Findley S, Sugawara M, Sadowsky MJ, Sumner LW, Stacey G. Plant Physiology; 153(4):1808-1822.

Date published: August 1, 2010
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LAP5 and LAP6 encode anther-specific proteins with similarity to chalcone synthase essential for pollen exine development in arabidopsis. Dobritsa AA, Lei Z, Nishikawa S, Urbanczyk-Wochniak E, Huhman DV, Preuss D, Sumner LW. Plant Physiology; 153(3):937-955.

Date published: July 1, 2010
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Plant neighbor identity influences plant biochemistry and physiology related to defense. Broz AK, Broeckling CD, De-la-Peña C, Lewis MR, Greene E, Callaway RM, Sumner LW, Vivanco JM. BMC Plant Biology; 10:115.

Date published: June 17, 2010
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Plantmetabolomics.org: A web portal for plant metabolomics experiments. Bais P, Moon SM, He K, Leitao R, Dreher K, Walk T, Sucaet Y, Barkan L, Wohlgemuth G, Roth MR, Wurtele ES, Dixon P, Fiehn O, Lange BM, Shulaev V, Sumner LW, Welti R, Nikolau BJ, Rhee SY, Dickerson JA. Plant Physiology; 152(4):1807-1816.

Date published: April 1, 2010
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Genomic and coexpression analyses predict multiple genes involved in triterpene saponin biosynthesis in Medicago truncatula. Naoumkina MA, Modolo LV, Huhman DV, Urbanczyk-Wochniak E, Tang Y, Sumner LW, Dixon RA. Plant Cell; 22(3):850-866.

Date published: March 1, 2010
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Recent advances in plant metabolomics and greener pastures. Sumner LW. F1000 Biology Reports; 2(1):7.

Date published: January 27, 2010
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TrichOME: A comparative omics database for plant trichomes. Dai X, Wang G, Yang DS, Tang Y, Broun P, Marks MD, Sumner LW, Dixon RA, Zhao PX. Plant Physiology; 152(1):44-54.

Date published: January 1, 2010
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Improvement of drought tolerance in white clover (Trifolium repens) by transgenic expression of a transcription factor gene WXP1. Jiang Q, Zhang J-Y, Guo X, Bedair M, Sumner L, Bouton J, Wang Z-Y. Functional Plant Biology; 37(2):157-165.

Date published: January 1, 2010
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2009

Integrated metabolite and transcript profiling identify a biosynthetic mechanism for hispidol in Medicago truncatula cell cultures. Farag MA, Deavours BE, de Fáltima A, Naoumkina M, Dixon RA, Sumner LW. Plant Physiology; 151(3):1096-1113.

Date published: November 1, 2009
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A WD40 repeat protein from Medicago truncatula is necessary for tissue-specific anthocyanin and proanthocyanidin biosynthesis but not for trichome development. Pang Y, Wenger JP, Saathoff K, Peel GJ, Wen J, Human D, Allen SN, Tang Y, Cheng X, Tadege M, Ratet P, Mysore KS, Sumner LW, Marks MD, Dixon RA. Plant Physiology; 151(3):1114-1129.

Date published: November 1, 2009
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Proteome analysis of Pithecellobium dulce seeds using two-dimensional gel electrophoresis and tandemmass spectrometry. Sawasdipuksa N, Sumner LW, Lei Z, Sangvanicha P. Journal of the Science of Food and Agriculture; 89(8):1284-1291.

Date published: June 1, 2009
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Transcript and proteomic analysis of developing white lupin (Lupinus albus L.) roots&z. Tian L. Tian L, Lei Z, Aziz N, Dai X, He J, Watson B, Zhao PX, Sumner LW, Dixon RA. BMC Plant Biology; 9:9.

Date published: January 1, 2009
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LAP3, a novel plant protein required for pollen development, is essential for proper exine formation. Dobritsa AA, Nishikawa S-I, Preuss D, Urbanczyk-Wochniak E, Sumner LW, Hammond A, Carlson AL, Swanson RJ. Sexual Plant Reproduction; 22(3):167-177.

Date published: January 1, 2009
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2008

Virus infection improves drought tolerance. Xu P, Chen F, Mannas JP, Feldman T, Sumner LW, Roossinck MJ. New Phytologist; 180(4):911-921.

Date published: December 1, 2008
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Root-microbe communication through protein secretion. De-la-Peña C, Lei Z, Watson BS, Sumner LW, Vivanco JM. Journal of Biological Chemistry; 283(37):25247-25255.

Date published: September 12, 2008
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Current and emerging mass-spectrometry technologies for metabolomics. Bedair M, Sumner LW. TrAC - Trends in Analytical Chemistry; 27(3):238-250.

Date published: March 1, 2008
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Sub-lethal levels of electric current elicit the biosynthesis of plant secondary metabolites. Kaimoyo E, Farag MA, Sumner LW, Wasmann C, Cuello JL, VanEtten H. Biotechnology Progress; 24(2):377-384.

Date published: March 1, 2008
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Altered profile of secondary metabolites in the root exudates of arabidopsis ATP-binding cassette transporter mutants. Badri DV, Loyola-Vargas VM, Broeckling CD, De-la-Peña C, Jasinski M, Santelia D, Martinoia E, Sumner LW, Banta LM, Stermitz F, Vivanco JM. Plant Physiology; 146(2):762-771.

Date published: February 1, 2008
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Metabolomics reveals novel pathways and differential mechanistic and elicitor-specific responses in phenylpropanoid and isoflavonoid biosynthesis in Medicago truncatula cell cultures. Farag MA, Huhman DV, Dixon RA, Sumner LW. Plant Physiology; 146(2):387-402.

Date published: February 1, 2008
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Proteomics of Legume Plants. Nagaraj S, Lei Z, Watson B, Sumner LW. Plant Proteomics: Technologies, Strategies, and Applications; 179-189.

Date published: January 7, 2008
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2007

Different mechanisms for phytoalexin induction by pathogen and wound signals in Medicago truncatula. Naoumkina M, Farag MA, Sumner LW, Tang Y, Liu C-J, Dixon RA. Proceedings of the National Academy of Sciences of the United States of America; 104(46):17909-17915.

Date published: November 13, 2007
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Metabolomics data analysis, visualization, and integration. Sumner LW, Urbanczyk-Wochniak E, Broeckling CD. Methods in Molecular Biology; 406:409-436.

Date published: November 1, 2007
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The metabolomics standards initiative (MSI). Fiehn O, Robertson D, Griffin J, vab der Werf M, Nikolau B, Morrison N, Sumner LW, Goodacre R, Hardy NW, Taylor C, Fostel J, Kristal B, Kaddurah-Daouk R, Mendes P, van Ommen B, Lindon JC, Sansone S-A. Metabolomics; 3(3):175-178.

Date published: September 1, 2007
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Minimum reporting standards for plant biology context information in metabolomic studies. Fiehn O, Sumner LW, Rhee SY, Ward J, Dickerson J, Lange BM, Lane G, Roessner U, Last R, Nikolau B. Metabolomics; 3(3):195-201.

Date published: September 1, 2007
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Proposed minimum reporting standards for chemical analysis: Chemical Analysis Working Group (CAWG) Metabolomics Standards Initiative (MSI). Sumner LW, Amberg A, Barrett D, Beale MH, Beger R, Daykin CA, Fan TW-M, Fiehn O, Goodacre R, Griffin JL, Hankemeier T, Hardy N, Harnly J, Higashi R, Kopka J, Lane AN, Lindon JC, Marriott P, Nicholls AW, Reily MD, Thaden JJ, Viant MR. Metabolomics; 3(3):211-221.

Date published: September 1, 2007
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The Metabolomics Standards Initiative [3]. Sansone S-A, Fan T, Goodacre R, Griffin JL, Hardy NW, Kaddurah-Daouk R, Kristal BS, Lindon J, Mendes P, Morrison N, Nikolau B, Robertson D, Sumner LW, Taylor C, Van Der Werf M, Van Ommen B, Fiehn O. Nature Biotechnology; 25(8):846-848.

Date published: August 1, 2007
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Heterologous expression of two Medicago truncatula putative ERF transcription factor genes, WXP1 and WXP2, in Arabidopsis led to increased leaf wax accumulation and improved drought tolerance, but differential response in freezing tolerance. Zhang J-Y, Broeckling CD, Sumner LW, Wang Z-Y. Plant Molecular Biology; 64(3):265-278.

Date published: June 1, 2007
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MedicCyc: A biochemical pathway database for Medicago truncatula. Urbanczyk-Wochniak E, Sumner LW. Bioinformatics; 23(11):1418-1423.

Date published: June 1, 2007
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Amino acid profiling in plant cell cultures: An inter-laboratory comparison of CE-MS and GC-MS. Williams BJ, Cameron CJ, Workman R, Broeckling CD, Sumner LW, Smith JT. Electrophoresis; 28(9):1371-1379.

Date published: May 1, 2007
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Metabolic profiling and systematic identification of flavonoids and isoflavonoids in roots and cell suspension cultures of Medicago truncatula using HPLC-UV-ESI-MS and GC-MS. Farag MA, Huhman DV, Lei Z, Sumner LW. Phytochemistry; 68(3):342-354.

Date published: February 1, 2007
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Methods, applications and concepts of metabolite profiling: secondary metabolism. Sumner LW, Huhman DV, Urbanczyk-Wochniak E, Lei Z. EXS; 97:195-212.

Date published: January 1, 2007
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Isolation of cell wall proteins from Medicago sativa stems. Watson BS, Sumner LW. Methods in molecular biology (Clifton, N.J.); 355:79-92.

Date published: January 1, 2007
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Electroelution of intact proteins from SDS-PAGE gels and their subsequent MALDI-TOF MS analysis. Lei Z, Anand A, Mysore KS, Sumner LW. Methods in molecular biology (Clifton, N.J.); 355:353-363.

Date published: January 1, 2007
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Proteomics of Medicago truncatula. Lei Z, Nagaraj S, Watson BS, Sumner LW. Plant Proteomics; 121-136.

Date published: January 1, 2007
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2006

Efficient and sensitive method for quantitative analysis of alkaloids in hardinggrass (Phalaris aquatica L.). Zhou L, Hopkins AA, Huhman DV, Sumner LW. Journal of Agricultural and Food Chemistry; 54(25):9287-9291.

Date published: December 13, 2006
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Functional analysis of members of the isoflavone and isoflavanone O-methyltransferase enzyme families from the model legume Medicago truncatula. Deavours BE, Liu C-J, Naoumkina MA, Tang Y, Farag MA, Sumner LW, Noel JP, Dixon RA. Plant Molecular Biology; 62(4-5):715-733.

Date published: November 1, 2006
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GC-MS SPME profiling of rhizobacterial volatiles reveals prospective inducers of growth promotion and induced systemic resistance in plants. Farag MA, Ryu C-M, Sumner LW, Paré PW. Phytochemistry; 67(20):2262-2268.

Date published: October 1, 2006
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MET-IDEA: Data extraction tool for mass spectrometry-based metabolomics. Broeckling CD, Reddy IR, Duran AL, Zhao X, Sumner LW. Analytical Chemistry; 78(13):4334-4341.

Date published: July 1, 2006
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Current status and forward looking thoughts on LC/MS metabolomics. Sumner LW. Biotechnology in Agriculture and Forestry; 57:21-32.

Date published: January 1, 2006
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Establishing reporting standards for metabolomic and metabonomic studies: A call for participation. Fiehn O, Kristal B, Van Ommen B, Sumner LW, Sansone S-A, Taylor C, Hardy N, Kaddurah-Daouk R. OMICS A Journal of Integrative Biology; 10(2):158-163.

Date published: January 1, 2006
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2005

Metabolic engineering of plant cells for biotransformation of hesperedin into neohesperidin, a substrate for production of the low-calorie sweetener and flavor enhancer NHDC. Frydman A, Weisshaus O, Huhman DV, Sumner LW, Bar-Peled M, Lewinsohn E, Fluhr R, Gressel J, Eyal Y. Journal of Agricultural and Food Chemistry; 53(25):9708-9712.

Date published: December 14, 2005
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A two-dimensional electrophoresis proteomic reference map and systematic identification of 1367 proteins from a cell suspension culture of the model legume Medicago truncatula. Lei Z, Elmer AM, Watson BS, Dixon RA, Mendes PJ, Sumner LW. Molecular and Cellular Proteomics; 4(11):1812-1825.

Date published: November 1, 2005
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Increased cuticular wax accumulation and enhanced drought tolerance in transgenic alfalfa by overexpression of a transcription factor gene. Wang Z-Y, Zhang J-Y, Broeckling C, Blancaflor E, Sledge M, Sumner L. Molecular Breeding for The Genetic Improvement of Forage Crops and Turf: Proceedings of the 4th International Symposium on The Molecular Breeding of Forage and Turf, a Satellite Workshop of the XXth International Grassland Congress, July 2005, Aberystwyth, Wales; 223.

Date published: July 1, 2005
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Overexpression of WXP1, a putative Medicago truncatula AP2 domain-containing transcription factor gene, increases cuticular wax accumulation and enhances drought tolerance in transgenic alfalfa (Medicago sativa). Zhang J-Y, Broeckling CD, Blancaflor EB, Sledge MK, Sumner LW, Wang Z-Y. Plant Journal; 42(5):689-707.

Date published: June 1, 2005
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Biomarker metabolites capturing the metabolite variance present in a rice plant developmental period. Tarpley L, Duran AL, Kebrom TH, Sumner LW. BMC Plant Biology; 5:8.

Date published: May 31, 2005
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Quantification of saponins in aerial and subterranean tissues of Medicago truncatula. Huhman DV, Berhow MA, Sumner LW. Journal of Agricultural and Food Chemistry; 53(6):1914-1920.

Date published: March 23, 2005
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Genomics-based selection and functional characterization of triterpene glycosyltransferases from the model legume Medicago truncatula. Achnine L, Huhman DV, Farag MA, Sumner LW, Blount JW, Dixon RA. Plant Journal; 41(6):875-887.

Date published: March 1, 2005
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Methyl jasmonate and yeast elicitor induce differential transcriptional and metabolic re-programming in cell suspension cultures of the model legume Medicago truncatula. Suzuki H, Reddy MSS, Naoumkina M, Aziz N, May GD, Huhman DV, Sumner LW, Blount JW, Mendes P, Dixon RA. Planta; 220(5):696-707.

Date published: March 1, 2005
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Metabolic profiling of Medicago truncatula cell cultures reveals the effects of biotic and abiotic elicitors on metabolism. Broeckling CD, Huhman DV, Farag MA, Smith JT, May GD, Mendes P, Dixon RA, Sumner LW. Journal of Experimental Botany; 56(410):323-336.

Date published: January 1, 2005
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2004

Apoplastic extracts from a transgenic wheat line exhibiting lesion-mimic phenotype have multiple pathogenesis-related proteins that are antifungal. Anand A, Lei Z, Sumner LW, Mysore KS, Arakane Y, Bockus WW, Muthukrishnan S. Molecular Plant-Microbe Interactions; 17(12):1306-1317.

Date published: December 1, 2004
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A proposed framework for the description of plant metabolomics experiments and their results. Jenkins H, Hardy N, Beckmann M, Draper J, Smith AR, Taylor J, Fiehn O, Goodacre R, Bino RJ, Hall R, Kopka J, Lane GA, Lange BM, Liu JR, Mendes P, Nikolau BJ, Oliver SG, Paton NW, Rhee S, Roessner-Tunali U, Saito K, Smedsgaard J, Sumner LW, Wang T, Walsh S, Wurtele ES, Kell DB. Nature Biotechnology; 22(12):1601-1606.

Date published: December 1, 2004
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Citrus fruit bitter flavors: Isolation and functional characterization of the gene Cm1,2RhaT encoding a 1,2 rhamnosyltransferase, a key enzyme in the biosynthesis of the bitter flavonoids of citrus. Frydman A, Weisshaus O, Bar-Peled M, Huhman DV, Sumner LW, Marin FR, Lewinsohn E, Fluhr R, Gressel J, Eyal Y. Plant Journal; 40(1):88-100.

Date published: October 1, 2004
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Potential of metabolomics as a functional genomics tool. Bino RJ, Hall RD, Fiehn O, Kopka J, Saito K, Draper J, Nikolau BJ, Mendes P, Roessner-Tunali U, Beale MH, Trethewey RN, Lange BM, Wurtele ES, Sumner LW. Trends in Plant Science; 9(9):418-425.

Date published: September 1, 2004
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Erratum: Chemical versus pharmacological actions of nutraceutical phytochemicals: Antioxidant and anti inflammatory modalities (Current Topics in Nutraceutical Research vol.2 (13-26)). Hensley K, Mou S, Pye QN, Dixon RA, Sumner LW, Floyd RA. Current Topics in Nutraceutical Research; 2(3):152.

Date published: August 1, 2004
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Proteomics of Medicago sativa cell walls. Watson BS, Lei Z, Dixon RA, Sumner LW. Phytochemistry; 65(12):1709-1720.

Date published: June 1, 2004
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2003

Metabolomics spectral formatting, alignment and conversion tools (MSFACTs). Duran AL, Yang J, Wang L, Sumner LW. Bioinformatics; 19(17):2283-2293.

Date published: November 22, 2003
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Profiling phenolic metabolites in transgenic alfalfa modified in lignin biosynthesis. Chen F, Duran AL, Blount JW, Sumner LW, Dixon RA. Phytochemistry; 64(5):1013-1021.

Date published: November 1, 2003
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Regiospecific hydroxylation of isoflavones by cytochrome P450 81E enzymes from Medicago truncatula. Liu C-J, Huhman D, Sumner LW, Dixon RA. Plant Journal; 36(4):471-484.

Date published: November 1, 2003
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Plant metabolomics: Large-scale phytochemistry in the functional genomics era. Sumner LW, Mendes P, Dixon RA. Phytochemistry; 62(6):817-836.

Date published: March 1, 2003
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Mapping the proteome of barrel medic (Medicago truncatula). Watson BS, Asirvatham VS, Wang L, Sumner LW. Plant Physiology; 131(3):1104-1123.

Date published: March 1, 2003
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Legume natural products: Understanding and manipulating complex pathways for human and animal health. Dixon RA, Sumner LW. Plant Physiology; 131(3):878-885.

Date published: March 1, 2003
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2002

Analytical and biological variances associated with proteomic studies of Medicago truncatula by two-dimensional polyacrylamide gel electrophoresis. Asirvatham VS, Watson BS, Sumner LW. Proteomics; 2(8):960-968.

Date published: August 1, 2002
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Protein identification success rates using peptide mass fingerprints to search protein and nucleotide databases in the proteomics studies of Medicago truncatula. Asirvatham VS, Watson BS, Wang L, Sumner LW. Proceedings 50th ASMS Conference on Mass Spectrometry and Allied Topics; 201-202.

Date published: June 2, 2002
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Metabolome profiling of Medicago truncatula yields insight info biological variance and development. Duran AL, Broeckling CD, Huhman DV, Sumner LW. Proceedings 50th ASMS Conference on Mass Spectrometry and Allied Topics; 475-476.

Date published: June 2, 2002
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Ion-neutral ratios: A unique measure of internal energy content of MALDI ions. Liu Z, Russell DH, Sumner LW. Proceedings 50th ASMS Conference on Mass Spectrometry and Allied Topics; 785-786.

Date published: June 2, 2002
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Metabolic profiling of saponins in Medicago sativa and Medicago truncatula using HPLC coupled to an electrospray ion-trap mass spectrometer. Huhman DV, Sumner LW. Phytochemistry; 59(3):347-360.

Date published: February 20, 2002
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Plant metabolomics: The missing link in functional genomics strategies. Hall R, Beale M, Fiehn O, Hardy N, Sumner L, Bino R. Plant Cell; 14(7):1437-1440.

Date published: January 1, 2002
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Silver stain removal using H2O2 for enhanced peptide mass mapping by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. Sumner LW, Wolf-Sumner B, White SP, Asirvatham VS. Rapid Communications in Mass Spectrometry; 16(3):160-168.

Date published: January 1, 2002
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Over-expression of cinnamate 4-hydroxylase leads to increased accumulation of acetosyringone in elicited tobacco cell-suspension cultures. Blount JW, Masoud S, Sumner LW, Huhman D, Dixon RA. Planta; 214(6):902-910.

Date published: January 1, 2002
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Chapter Three Metabolomics: A developing and integral component in functional genomic studies of medicago truncatula. Sumner LW, Duran AL, Huhman DV, Smith JT. Recent Advances in Phytochemistry; 36(C):31-61.

Date published: January 1, 2002
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1998

Definition of the redox states of cobalt-precorrinoids: Investigation of the substrate and redox specificity of CbiL from Salmonella typhimurium. Spancer P, Stolowich NJ, Sumner LW, Scott AI. Biochemistry; 37(42):14917-14927.

Date published: October 20, 1998
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Characterization of proteins utilized in the desulfurization of petroleum products by matrix-assisted laser desorption ionization time-of- flight mass spectrometry. Wolf BP, Sumner LW, Shields SJ, Neilsen K, Gray KA, Russell DH. Analytical Biochemistry; 260(2):117-127.

Date published: July 1, 1998
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Pentacoordinate (μ-Oxo)diiron (III) Thiolate Complexes and Dimeric Iron(II) Precursors. Musie G, Lai C-h, Reibenspies JH, Sumner LW, Darensbourg MY. Inorganic Chemistry; 37(16):4086-4093.

Date published: January 1, 1998
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1996

High-performance liquid chromatography/continuous-flow liquid secondary ion mass spectrometry of flavonoid glycosides in leguminous plant extracts. Sumner LW, Paiva NL, Dixon RA, Geno PW. Journal of Mass Spectrometry; 31(5):472-485.

Date published: May 1, 1996
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Template effect for O ₂ addition across cis-sulfur sites in nickel dithiolates. Grapperhaus CA, Darensbourg MY, Sumner LW, Russell DH. Journal of the American Chemical Society; 118(7):1791-1792.

Date published: February 21, 1996
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1993

Determination of cinnamic acid and 4‐coumaric acid in alfalfa (Medicago sativa L.) cell suspension cultures by gas chromatography. Orr JD, Sumner LW, Edwards R, Dixon RA. Phytochemical Analysis; 4(3):124-130.

Date published: May 1, 1993
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A novel mobile phase for continuous‐flow liquid secondary ion mass spectrometry of high molecular mass phthalocyanines. Sumner LW, Ford WT, Chang YH, Choi KH, Lee JJ. Organic Mass Spectrometry; 28(4):475-477.

Date published: April 1, 1993
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1992

Citrate is a major component of snake venoms. Freitas MA, Geno PW, Sumner LW, Cooke ME, Hudiburg SA, Ownby CL, Kaiser II, Odell GV. Toxicon; 30(4):461-464.

Date published: April 1, 1992
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