Journal of Applied Biological Chemistry

The Korean Society for Applied Biological Chemistry (한국응용생명화학회)
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Hairy Vetch Growth-Promoting Rhizobium sp. RH84 and Application to Reclaimed Land

Rhizobium sp. RH84에 의한 간척지 환경에서의 헤어리베치 생육촉진

  • Jang, Jong-Ok (Korea Research Institute of Bioscience and Biotechnology) ;
  • Kwon, Mi-Kyung (Chungcheongnam-do Agricultural Research and Extension Services, Agricultural Environment Research Division) ;
  • Park, Dong-Jin (Korea Research Institute of Bioscience and Biotechnology) ;
  • Sung, Chang Keun (Department of Food Science and Technology, Chungnam National University) ;
  • Kim, Chang-Jin (Korea Research Institute of Bioscience and Biotechnology)
  • Received : 2013.05.16
  • Accepted : 2013.07.23
  • Published : 2013.12.31
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Abstract

This study was carried out to investigate the plant growth promoting activity of hairy vetch (Vicia villosa Roth) on reclaimed land. At the previous research, Rhizobium sp. RH84 was isolated and selected for further study from hairy vetch. For the investigation of plant growth promoting effects by the Rhizobium sp. RH84, production of indole acetic acid (IAA), siderophore, phosphate solubilization and nitrogen fixation were tested and other characters were examined. As results, RH84 produced $9.03{\mu}g$ IAA per mL and showed nitrogen fixation activity. With the treatment of Rhizobium sp. RH84 to hairy vetch showed good growth at 0.3% salty reclaimed soil, and the production yield was increased up to 56% at field test. From these results, it was confirmed that the Rhizobium sp. RH84 would be used as a green manure for hairy vetch under the salty condition of reclaimed land.

녹비 작물인 헤어리베치의 간척지 적용을 위해 본 연구에서는 헤어리베치의 뿌리혹으로부터 분리 된 Rhizobium sp. RH84의 특성을 파악하고 이를 직접 간척지에 적용하여 헤어리베치의 생산량 증대에 이용하고자 하였다. 전보에서 분리 한 RH84의 형태학적, 생리학적 특성 및 식물생육촉진(PGP) 활성을 확인하기 위하여 옥신, 질소 고정능, 인산 가용능, sideropore 생산능을 분석하였다. 그 결과, RH84는 식물호르몬인 IAA를 $9.03{\mu}g/mL$ 생산하였고, 질소 고정 활성을 가진 균주이었다. 또한 염 농도가 0.3%인 간척지 토양에서의 헤어리베치 생장에 영향을 주며, 간척지 포장에서 약 56%의 헤어리베치 수확량을 증가시켰다. 따라서 Rhizobium sp. RH84 균주는 염 농도가 높은 간척지에서 녹비작물인 헤어리베치의 생장을 촉진시키며 수확량을 증가시키기 위한 균주임을 확인하였다.

Keywords

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