Impact of Azospirillum sp. B510 inoculation on rice-associated bacterial communities in a paddy field

Zhihua Bao, Kazuhiro Sasaki, Takashi Okubo, Seishi Ikeda, Mizue Anda, Eiko Hanzawa, Kaori Kakizaki, Tadashi Sato, Hisayuki Mitsui, Kiwamu Minamisawa

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)

Abstract

Rice seedlings were inoculated with Azospirillum sp. B510 and transplanted into a paddy field. Growth in terms of tiller numbers and shoot length was significantly increased by inoculation. Principal-coordinates analysis of rice bacterial communities using the 16S rRNA gene showed no overall change from B510 inoculation. However, the abundance of Veillonellaceae and Aurantimonas significantly increased in the base and shoots, respectively, of B510-inoculated plants. The abundance of Azospirillum did not differ between B510-inoculated and uninoculated plants (0.02-0.50%). These results indicate that the application of Azospirillum sp. B510 not only enhanced rice growth, but also affected minor rice-associated bacteria.

Original languageEnglish
Pages (from-to)487-490
Number of pages4
JournalMicrobes and Environments
Volume28
Issue number4
DOIs
Publication statusPublished - 2013

Keywords

  • Azospirillum sp. B510
  • Bacterial community
  • Inoculation
  • Pyrosequencing
  • Rice paddy field

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