African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6848

Full Length Research Paper

Enhance activity of stress related enzymes in rice (Oryza sativa L.) induced by plant growth promoting fungi under drought stress

Yogendra Singh Gusain*
  • Yogendra Singh Gusain*
  • Department of Biological Sciences, G. B. Pant University of Agriculture and Technology, Pantnagar, Uttarakhand, 263145, India.
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U. S. Singh
  • U. S. Singh
  • IRRI Office NASC Complex, Pusa New Delhi, 110012, India.
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A. K. Sharma
  • A. K. Sharma
  • Department of Biological Sciences, G. B. Pant University of Agriculture and Technology, Pantnagar, Uttarakhand, 263145, India.
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  •  Received: 03 February 2014
  •  Accepted: 24 March 2014
  •  Published: 08 May 2014

Abstract

Water scarcity is one of the main consequences of changing climate which adversely affects the plant growth and productivity. The present study aimed to investigate the effect of plant growth promoting fungi (PGPF), Trichoderma harzianum strain-35 (T-35) and newly discovered Fusarium pallidoroseum strain-10 (FP-10) on total biomass production and activities of the stress related enzymes [superoxide dismutase (SOD), catalase (CAT) and peroxidase (POD)] in Swarna and Swarna sub-1 genotypes of rice under drought stress. PGPFs inoculated plants showed enhance shoot and root dry weight as compared to uninoculated plants under water stress. Quantitative analyses of antioxidant enzymes indicated that plants inoculated with PGPFs showed higher activity of SOD, CAT and POD enzymes as compared to uninoculated plants under severe drought condition (41.23% pot moisture content). Higher biomass and greater induction of antioxidant enzymes in plants may be the mechanism through which these PGPFs help plants to alleviate the consequences of drought stress and maintenance of plant homeostasis under severe drought.

Key words: Trichoderma harzianum, Fusarium pallidoroseum, rice, drought stress, antioxidant.