Characterization of a Rhizobacterium Promoting Early Growth in Maize

옥수수 초기 성장을 촉진하는 근류세균의 특성

  • Lee Sang-Eun (Department of Microbiology, Kyungpook National University) ;
  • Yi Hwe-Su (Department of Microbiology, Kyungpook National University) ;
  • Park Seung-Hwan (Genome Research Center, KRIBB) ;
  • Ghim Sa-Youl (Department of Microbiology, Kyungpook National University)
  • 이상은 (경북대학교 미생물학과) ;
  • 이외수 (경북대학교 미생물학과) ;
  • 박승환 (한국생명공학연구원 유전체연구센터) ;
  • 김사열 (경북대학교 미생물학과)
  • Published : 2005.03.01

Abstract

A soil bacterium was isolated from maize roots cultivated in Korea (KNUC153). The isolate was partially classified on basis of l6S rDNA sequence analysis as Stenotrophomonas maltophilia. By the acetylene reduction assay (ARA), the strain KNUC153 contained nitrogen-fixing abilities. The amount of auxin produced by the strain KNUC153 was $77.6\;{\mu}g/ml$. The strain KNUC153 produced 4 times higher amount of l-amino-cyclopropane-l-carboxy­lic acid deaminase than that of the other known strain Azospirillum sp. KNUC82. Inoculation treatment with the strain KNUC153 for maize seeds showed positive effect on early growth of the plants.

Keywords

References

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