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|Professor, Dept. Plant Pathology, UW-Madison|
1630 Linden Drive
790 Russell Laboratories
- BS 1993, San Jose State University, San Jose, CA; Major: Marine Biology, English, Minor: Chemistry
- PhD 2000, University of California-Davis, Davis, CA; Department of Plant Pathology
Bacterial colonization of plants with a focus on food safety of fresh produce
The evidence that plants are a common host of human enteric pathogens, such as Salmonella enterica and Escherichia coli is now overwhelming. There is strong scientific consensus that these human pathogens are also plant-associated microbes. Our lab focuses on advancing the field of plant-microbe interactions by studying the biology of S. enterica in association with plants. We are interested in the genes and mechanisms required for S. enterica plant colonization. We take a diverse approach from bacterial genetics to computational biology. Our goal is to develop cutting edge studies focusing on S. enterica while spring boarding off the wealth of scientific knowledge available for its famous cousin, E. coli.
Reducing foodborne illness caused by consumption of contaminated healthy food stuff such as fresh produce is an immediate need. However, the study of human enteric bacterial pathogens in association with plants is a young sub-discipline that requires investigation of basic biology to move toward the ultimate goal of reducing human illness.
- Cowles KN, Groves RL, Barak JD 2018. Leafhopper-Induced Activation of the Jasmonic Acid Response Benefits in a Flagellum-Dependent Manner. Front Microbiol 9:1987 (PMC6115507)
- Kwan G, Plagenz B, Cowles K, Pisithkul T, Amador-Noguez D, Barak JD 2018. Few Differences in Metabolic Network Use Found Between Colonization of Plants and Typhoidal Mice. Front Microbiol 9:695 (PMC5951976)
- Potnis N, Colee J, Jones JB, Barak JD 2015. Plant pathogen-induced water-soaking promotes Salmonella enterica growth on tomato leaves. Appl. Environ. Microbiol. 81(23):8126-34 (PMC4651078)
- Potnis N, Timilsina S, Strayer A, Shantharaj D, Barak JD, Paret ML, Vallad GE, Jones JB 2015. Bacterial spot of tomato and pepper: diverse Xanthomonas species with a wide variety of virulence factors posing a worldwide challenge. Mol. Plant Pathol. 16(9):907-20
- Cowles KN, Willis DK, Engel TN, Jones JB, Barak JD 2015. Diguanylate Cyclases AdrA and STM1987 Regulate Salmonella enterica Exopolysaccharide Production during Plant Colonization in an Environment-Dependent Manner. Appl. Environ. Microbiol. 82(4):1237-48 (PMC4751842)
- Dundore-Arias JP, Groves RL, Barak JD 2015. Influence of prgH on the Persistence of Ingested Salmonella enterica in the Leafhopper Macrosteles quadrilineatus. Appl. Environ. Microbiol. 81(18):6345-54 (PMC4542225)
- Schwartz AR, Potnis N, Timilsina S, Wilson M, Patané J, Martins J, Minsavage GV, Dahlbeck D, Akhunova A, Almeida N, Vallad GE, Barak JD, White FF, Miller SA, Ritchie D, Goss E, Bart RS, Setubal JC, Jones JB, Staskawicz BJ 2015. Phylogenomics of Xanthomonas field strains infecting pepper and tomato reveals diversity in effector repertoires and identifies determinants of host specificity. Front Microbiol 6:535 (PMC4452888)
- Soto-Arias JP, Groves RL, Barak JD 2014. Transmission and retention of Salmonella enterica by phytophagous hemipteran insects. Appl. Environ. Microbiol. 80(17):5447-56 (PMC4136094)
- Soto-Arias JP, Groves R, Barak JD 2013. Interaction of phytophagous insects with Salmonella enterica on plants and enhanced persistence of the pathogen with Macrosteles quadrilineatus infestation or Frankliniella occidentalis feeding. PLoS ONE 8(10):e79404 (PMC3812026)
- Kwan G, Charkowski AO, Barak JD 2013. Salmonella enterica suppresses Pectobacterium carotovorum subsp. carotovorum population and soft rot progression by acidifying the microaerophilic environment. MBio 4(1):e00557-12 (PMC3573663)
- View all Publications @ PubMed