Mutants Disrupted in the Type III Secretion System of Bradyrhizobium elkanii BLY3-8 Overcame Nodulation Restriction by Rj3-genotype Soybean

Miku Shobudani, Aung Zaw Htwe, Takeo Yamakawa, Matsujiro Ishibashi, Hirohito Tsurumaru

Research output: Contribution to journalArticle

Abstract

Bradyrhizobium elkanii BLY3-8 does not form nodules on the roots of Rj3-genotype soybean (cultivar D-51). This is a cultivar-specific nodulation restriction. The genes A6X20_40975 and A6X20_41030 in strain BLY3-8 were predicted to encode the transcriptional activator and apparatus of the type III secretion system (T3SS) (the proteins TtsI and RhcJ), respectively. Mutants disrupted in these genes overcame the nodulation restriction. These results suggest that an effector injected via T3SS into Rj3-genotype soybean is involved in nodulation restriction by Rj3-genotype soybean.

Original languageEnglish
JournalMicrobes and environments
Volume35
Issue number2
DOIs
Publication statusPublished - Jan 1 2020

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Soil Science
  • Plant Science

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