Biological Role of Pigment Production for the Bacterial Phytopathogen Pantoea stewartii subsp. stewartii
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منابع مشابه
Biological role of pigment production for the bacterial phytopathogen Pantoea stewartii subsp. stewartii.
Pantoea stewartii subsp. stewartii, the causal agent of Stewart's wilt of sweet corn, produces a yellow carotenoid pigment. A nonpigmented mutant was selected from a bank of mutants generated by random transposon mutagenesis. The transposon insertion site was mapped to the crtB gene, encoding a putative phytoene synthase, an enzyme involved in the early steps of carotenoid biosynthesis. We demo...
متن کاملA negative regulator mediates quorum-sensing control of exopolysaccharide production in Pantoea stewartii subsp. stewartii.
Classical quorum-sensing (autoinduction) regulation, as exemplified by the lux system of Vibrio fischeri, requires N-acyl homoserine lactone (AHL) signals to stimulate cognate transcriptional activators for the cell density-dependent expression of specific target gene systems. For Pantoea stewartii subsp. stewartii, a bacterial pathogen of sweet corn and maize, the extracellular polysaccharide ...
متن کاملDevelopment of an Immunochromatographic Strip for Rapid Detection of Pantoea stewartii subsp. stewartii
A rapid, simple, sensitive, and specific immunochromatographic test strip was developed for the detection of Pantoea stewartii subsp. stewartii (Pss) in corn seed which was soaked overnight and then centrifuged for precipitate re-dissolved as samples. A pair of sensitive monoclonal antibodies for the immunochromatographic test strip was generated by mice immunization and cell fusion. Under opti...
متن کاملComplete Genome Assembly of Pantoea stewartii subsp. stewartii DC283, a Corn Pathogen
The phytopathogen Pantoea stewartii subsp. stewartii DC283 causes Stewart's wilt disease in corn after transmission from the corn flea beetle insect vector. Here, we report that the complete annotated genome of P. stewartii DC283 has been fully assembled into one circular chromosome, 10 circular plasmids, and one linear phage.
متن کاملIntegrated downstream regulation by the quorum-sensing controlled transcription factors LrhA and RcsA impacts phenotypic outputs associated with virulence in the phytopathogen Pantoea stewartii subsp. stewartii
Pantoea stewartii subsp. stewartii is a Gram-negative proteobacterium that causes leaf blight and Stewart's wilt disease in corn. Quorum sensing (QS) controls bacterial exopolysaccharide production that blocks water transport in the plant xylem at high bacterial densities during the later stage of the infection, resulting in wilt. At low cell density the key master QS regulator in P. stewartii,...
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ژورنال
عنوان ژورنال: Applied and Environmental Microbiology
سال: 2012
ISSN: 0099-2240,1098-5336
DOI: 10.1128/aem.01574-12