January
1998
, Volume
11
, Number
1
Pages
68
-
70
Authors
Alan R.
Poplawsky
,
1
Wesley
Chun
,
1
Holly
Slater
,
2
Michael J.
Daniels
,
2
and
J. Maxwell
Dow
2
Affiliations
1Plant Pathology Division, Department of Plant, Soil, and Entomological Sciences, University of Idaho, Moscow 83844-2339, U.S.A.; 2The Sainsbury Laboratory, John Innes Centre, Norwich Research Park, Colney, Norwich NR4 7UH, U.K.
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RelatedArticle
Accepted 23 September 1997.
Abstract
In previous work, the pigB transcriptional unit of Xanthomonas campestris was implicated in the generation of a diffusible factor (DF) that regulates xanthomonadin and extracellular polysaccharide (EPS) production. Similarly, the rpfF and rpfB genes were implicated in the generation of a diffusible factor (DSF) that regulates the production of extracellular enzymes and EPS. In this study, extracel-lular cross-feeding studies with rpfF and pigB mutant strains provided evidence for the existence of two separate intercellular signaling systems with overlapping roles in the regulation of EPS production.
JnArticleKeywords
Additional keywords:
epiphytic survival,
pathogenesis.
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ArticleCopyright
© 1998 The American Phytopathological Society
