Exopolysaccharide production is influenced by sugars, N-acylhomoserine lactone, and transcriptional regulators RcsA and RcsB, but does not affect pathogenicity in the plant pathogen Pantoea ananatis

Tomohiro Morohoshi; Kiemi Oseki; Tsukasa Ikeda

doi:10.1271/bbb.100888

Exopolysaccharide production is influenced by sugars, N-acylhomoserine lactone, and transcriptional regulators RcsA and RcsB, but does not affect pathogenicity in the plant pathogen Pantoea ananatis

Biosci Biotechnol Biochem. 2011;75(5):997-9. doi: 10.1271/bbb.100888. Epub 2011 May 20.

Authors

Tomohiro Morohoshi¹, Kiemi Oseki, Tsukasa Ikeda

Affiliation

¹ Department of Material and Environmental Chemistry, Graduate School of Engineering, Utsunomiya University, Tochigi, Japan. morohosi@cc.utsunomiya-u.ac.jp

PMID: 21597171
DOI: 10.1271/bbb.100888

Abstract

Pantoea ananatis SK-1 produced EPS by AHL-mediated quorum sensing on an LB agar plate containing glucose, fructose, and sucrose. rcsA and rcsB mutants did not produce EPS with or without AHLs and with or without sugars, but they induced necrotic symptoms in onion leaves. These results indicate that EPS production does not relate to the pathogenicity of SK-1.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Acyl-Butyrolactones / metabolism*
Bacterial Proteins / genetics
Bacterial Proteins / metabolism*
Carbohydrates / pharmacology*
Mutation
Pantoea / drug effects
Pantoea / genetics
Pantoea / metabolism*
Pantoea / pathogenicity
Plants / microbiology*
Polysaccharides, Bacterial / biosynthesis*
Transcription, Genetic*

Substances

Acyl-Butyrolactones
Bacterial Proteins
Carbohydrates
Polysaccharides, Bacterial
RcsB protein, Bacteria