한국자원식물학회:학술대회논문집 (Proceedings of the Plant Resources Society of Korea Conference)

한국자원식물학회 (The Plant Resources Society of Korea)
권호 표지

Growth of Phaseolus mungounder chromium stress - influence of chromate reducing bacteria

  • M. Rajkumar (Division of Bioresources Science, College of Agriculture, Chonbuk National university, Centre for Environmental Studies, Anna University) ;
  • Lee, Kui-Jae (Division of Bioresources Science, College of Agriculture, Chonbuk National university, Centre for Environmental Studies, Anna University) ;
  • Seo, Jae-Hwan (Division of Bioresources Science, College of Agriculture, Chonbuk National university, Centre for Environmental Studies, Anna University) ;
  • Lee, Wang-Hui (Division of Bioresources Science, College of Agriculture, Chonbuk National university, Centre for Environmental Studies, Anna University)
  • Published : 2003.10.01
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Abstract

The plant growth promoting rhizobacteria (PGPR), Pseudomonas sp. (A3) and Bacillus sp. (AT33) were isolated from the rhizosphere of Amaranthus blitum collected from soil contaminated with chromium. Bothbacterial strains quantitatively reduced hexavalent chromium to trivalent chromium. Pseudomonas sp. broughter greater conversion of Cr6+ in the medium (100%) as compared to Bacillus sp.(62%). Phaseolus mungo seeds inoculated with Pseudomonas sp. or Bacillus sp. were grown under different concentration of chromium. The monitoredparameters included elongation of shoot and root, fresh weight, dry weight and concentration of chromium in the shoot and root systems. As compared to non inoculated seedlings those inoculated with A3 and AT33 exhibited better growth.

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