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- W2169687383 abstract "Xanthomonas oryzae pv. oryzae causes bacterial blight, a serious disease of rice. Our analysis revealed that the X. oryzae pv. oryzae genome encodes genes responsible for iron uptake through FeoB (homolog of the major bacterial ferrous iron transporter) and a siderophore. A mutation in the X. oryzae pv. oryzae feoB gene causes severe virulence deficiency, growth deficiency in iron-limiting medium, and constitutive production of a siderophore. We identified an iron regulated xss gene cluster, in which xssABCDE (Xanthomonas siderophore synthesis) and xsuA (Xanthomonas siderophore utilization) genes encode proteins involved in biosynthesis and utilization of X. oryzae pv. oryzae siderophore. Mutations in the xssA, xssB, and xssE genes cause siderophore deficiency and growth restriction under iron-limiting conditions but are virulence proficient. An xsuA mutant displayed impairment in utilization of native siderophore, suggesting that XsuA acts as a specific receptor for a ferric-siderophore complex. Histochemical and fluorimetric assays with gusA fusions indicate that, during in planta growth, the feoB gene is expressed and that the xss operon is not expressed. This study represents the first report describing a role for feoB in virulence of any plant-pathogenic bacterium and the first functional characterization of a siderophore-biosynthetic gene cluster in any xanthomonad." @default.
- W2169687383 created "2016-06-24" @default.
- W2169687383 creator A5077450724 @default.
- W2169687383 creator A5080038614 @default.
- W2169687383 date "2010-06-15" @default.
- W2169687383 modified "2023-09-30" @default.
- W2169687383 title "Role of the FeoB Protein and Siderophore in Promoting Virulence of <i>Xanthomonas oryzae</i> pv. oryzae on Rice" @default.
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- W2169687383 doi "https://doi.org/10.1128/jb.01558-09" @default.
- W2169687383 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/2901680" @default.
- W2169687383 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/20382771" @default.
- W2169687383 hasPublicationYear "2010" @default.
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