Bacterial blight of soybean: Regulation of a pathogen gene determining host cultivar specificity

Thanh V. Huynh, Douglas Dahlbeck, Brian J. Staskawicz

Research output: Contribution to journalArticle

Abstract

Soybean cultivars resistant to Pseudomonas syringae pathovar glycinea (Psg), the causal agent of bacterial blight, exhibit a hypersensitive (necrosis) reaction (HR) to infection. Psg strains carrying the avrB gene elicit the HR in soybean cultivars carrying the resistance gene Rpg1. Psg expressing avrB at a high level and capable of eliciting the HR in the absence of de novo bacterial RNA synthesis have been obtained in in vitro culture. Nutritional signals and regions within the Psg hrp gene cluster, an approximately 20-kilobase genomic region also necessary for pathogenicity, control avrB transcription.

Original languageEnglish (US)
Pages (from-to)1374-1377
Number of pages4
JournalScience
Volume245
Issue number4924
DOIs
StatePublished - Jan 1 1989

ASJC Scopus subject areas

  • General

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