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Characterization of Multifunctional Bacillus sp. GH1-13

복합기능성 Bacillus sp. GH1-13 균주의 특징

  • Kim, Sang Yoon (Agricultural Microbiology Division, National institute of Agricultural Sciences, RDA) ;
  • Sang, Mee Kyung (Agricultural Microbiology Division, National institute of Agricultural Sciences, RDA) ;
  • Weon, Hang-Yeon (Agricultural Microbiology Division, National institute of Agricultural Sciences, RDA) ;
  • Jeon, Young-Ah (RDA-Genebank Information Center, National institute of Agricultural Sciences, RDA) ;
  • Ryoo, Jae Hwan (Research Center for Agro-Bio EM & Environmental Resources, Jeonju University) ;
  • Song, Jaekyeong (Agricultural Microbiology Division, National institute of Agricultural Sciences, RDA)
  • 김상윤 (농촌진흥청 국립농업과학원 농업미생물과) ;
  • 상미경 (농촌진흥청 국립농업과학원 농업미생물과) ;
  • 원항연 (농촌진흥청 국립농업과학원 농업미생물과) ;
  • 전영아 (농촌진흥청 국립농업과학원 농업유전자원센터) ;
  • 류재환 (전주대학교 농생명EM환경연구센터) ;
  • 송재경 (농촌진흥청 국립농업과학원 농업미생물과)
  • Received : 2016.07.26
  • Accepted : 2016.09.11
  • Published : 2016.09.30

Abstract

Several microorganisms in particular Bacillus subtilis group have been isolated from diverse places such as soils and the gastrointestinal tract of ruminants etc., and used as biocontrol agent against various plant pathogens and utilized as plant growth promoting agents. Among them, Bacillus is well known as one of the most useful bacteria for biocontrol and plant growth promotion. Bacterium GH1-13 was isolated from a reclaimed paddy field in Wando Island and identified as Bacillus velezensis using phylogenetic analysis on the basis of 16S rRNA and gyrB gene. It was confirmed that GH1-13 produced indole acetic acid (IAA) associated with promoted growth of rice root. GH1-13 showed characteristics of antagonization against the main pathogen of rice as well as diverse pathogenic fungi. GH1-13 had biosynthetic genes, bacillomycin, bacilycin, fengycin, iturin, and surfactin which are considered to be associated closely with inhibition of growth of pathogenic fungi and bacteria. This study showed that GH1-13 could be used as a multifunctional agent for biocontrol and growth promotion of crop.

Acknowledgement

Supported by : 농촌진흥청

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