Azospirillum sp. strain B510 enhances rice growth and yield

Tsuyoshi Isawa, Michiko Yasuda, Hirotoshi Awazaki, Kiwamu Minamisawa, Satoshi Shinozaki, Hideo Nakashita

Research output: Contribution to journalArticle

48 Citations (Scopus)


Inoculation experiments with the endophytic bacterium Azospirillum sp. strain B510, an isolate from surface-sterilized stems of field-grown rice, were conducted in pots in a greenhouse, and in paddy fields in Hokkaido, Japan. B510 significantly enhanced the growth of newly generated leaves and shoot biomass under greenhouse conditions. When rice seedlings were treated with 1×108 CFU ml-1, then transplanted to paddy fields, tiller numbers and seed yield significantly increased. Azospirillum sp. strain B510 is a promising bacterial inoculant for plant growth promotion and agricultural practices.

Original languageEnglish
Pages (from-to)58-61
Number of pages4
JournalMicrobes and environments
Issue number1
Publication statusPublished - 2010 Mar 3


  • Azospirillum
  • Inoculation
  • Plant-growth promotion
  • Rice

ASJC Scopus subject areas

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

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  • Cite this

    Isawa, T., Yasuda, M., Awazaki, H., Minamisawa, K., Shinozaki, S., & Nakashita, H. (2010). Azospirillum sp. strain B510 enhances rice growth and yield. Microbes and environments, 25(1), 58-61.