title: Analysis of the small RNA P16/RgsA in the plant pathogen Pseudomonas syringae pv. tomato strain DC3000.
abstract: Bacteria contain small non-coding RNAs (ncRNAs) that are responsible for altering transcription, translation or mRNA stability. ncRNAs are important because they regulate virulence factors and susceptibility to various stresses. Here, the regulation of a recently described ncRNA of Pseudomonas syringae pv. tomato DC3000, P16, was investigated. We determined that RpoS regulates the expression of P16. We found that deletion of P16 results in increased sensitivity to hydrogen peroxide compared to the wild-type strain, suggesting that P16 plays a role in the bacteria's susceptibility to oxidative stress. Additionally the P16 mutant displayed enhanced resistance to heat stress. Our findings provide new information on the regulation and role of this ncRNA in P. syringae.
authors.affiliation: Department of Plant Pathology and Plant-Microbe Biology, Cornell University, Ithaca, NY 14853, USA.
authors.forename: So Hae
authors.initials: SH
authors.lastname: Park
authors.affiliation: Department of Plant Pathology and Plant-Microbe Biology, Cornell University, Ithaca, NY 14853, USA.
authors.forename: Bronwyn G
authors.initials: BG
authors.lastname: Butcher
authors.affiliation: Department of Plant Pathology and Plant-Microbe Biology, Cornell University, Ithaca, NY 14853, USA.
authors.forename: Zoe
authors.initials: Z
authors.lastname: Anderson
authors.affiliation: Plant-Microbe Interactions Research Unit, Robert W. Holley Center for Agriculture and Health, Agricultural Research Service, United States Department of Agriculture, Ithaca, NY 14853, USA.
authors.forename: Nola
authors.initials: N
authors.lastname: Pellegrini
authors.affiliation: Department of Plant Pathology and Plant-Microbe Biology, Cornell University, Ithaca, NY 14853, USA.
authors.forename: Zhongmeng
authors.initials: Z
authors.lastname: Bao
authors.affiliation: Plant-Microbe Interactions Research Unit, Robert W. Holley Center for Agriculture and Health, Agricultural Research Service, United States Department of Agriculture, Ithaca, NY 14853, USA.|Department of Plant Pathology and Plant-Microbe Biology, Cornell University, Ithaca, NY 14853, USA.
authors.forename: Katherine
authors.initials: K
authors.lastname: D'Amico
authors.affiliation: Plant-Microbe Interactions Research Unit, Robert W. Holley Center for Agriculture and Health, Agricultural Research Service, United States Department of Agriculture, Ithaca, NY 14853, USA.|Department of Plant Pathology and Plant-Microbe Biology, Cornell University, Ithaca, NY 14853, USA.
authors.forename: Melanie J
authors.initials: MJ
authors.lastname: Filiatrault
mesh_terms: D017353:Gene Deletion; D015964:Gene Expression Regulation, Bacterial; D006358:Hot Temperature; D006861:Hydrogen Peroxide / Q000633:toxicity; D018551:Solanum lycopersicum / Q000382:microbiology; D018384:Oxidative Stress; D010935:Plant Diseases / Q000382:microbiology; D044224:Pseudomonas syringae / Q000187:drug effects / Q000235:genetics* / Q000302:isolation & purification / Q000502:physiology; D034741:RNA, Small Interfering / Q000096:biosynthesis / Q000235:genetics*; D013312:Stress, Physiological
chemical_list: D034741:RNA, Small Interfering; D006861:Hydrogen Peroxide