Reduced rhizosphere colonization ability of Agrobacterium tumefaciens chromosomal virulence (chv) mutants

Martha C. Hawes, Steven G. Pueppke

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

Mutations in the chromosomal virulence (chv) region of A. tumefaciens strain A723 reduce virulence, motility, and ability of the bacteria to bind to plant cells. We conducted experiments to assess the ability of chv mutants to colonize the rhizosphere of Pisum sativum. The mutation had no effect on ability of bacteria to grow with a defined number of root cap cells as the sole carbon and nitrogen source. Ten days after inoculation, there were up to 103-fold more wild type than chv mutant bacteria present in the rhizosphere of inoculated plants.

Original languageEnglish (US)
Pages (from-to)129-132
Number of pages4
JournalPlant and Soil
Volume113
Issue number1
DOIs
StatePublished - Jan 1 1989

Keywords

  • Agrobacterium tumefaciens
  • Pisum sativum
  • binding
  • rhizosphere
  • root cap cells

ASJC Scopus subject areas

  • Soil Science
  • Plant Science

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