Screening Arbuscular Mycorrhizal Fungi in Order to Select the Best for Alleviating Wilt Disease Complex of Capsicum

Research Article
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Abstract

Arbuscular mycorrhizal fungi (AMF) play an important role in protection of host plant from infection by soil-borne plant pathogens. In the present study different AMF were tested for their ability to alleviate wilt disease complex of tomato caused by bacterial pathogen Ralstonia solanacearum, fungal pathogen Phytophthora capsici and root-knot nematode Meloidogyne incognita. Plant growth parameters like plant height, stem girth, biovolume index, root and shoot dry weight, total plant dry weight, disease index and mycorrhizal parameters like per cent root colonization and spore count in the root zone soil were evaluated. In general AMF inoculation increased plant growth parameters. Among 11 AMF screened, Glomus bagyarajii was found to be the best AMF in enhancing plant height, stem girth, total plant dry weight, mycorrhizal root colonization and most importantly exhibited least per cent disease index (50.20 %) as compared to control (82.14 %). The results show the potential of using G. bagyarajii for the biocontrol of wilt disease complex of capsicum.

Keywords

Biocontrol Glomus bagyarajii Soil-borne pathogens 
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Notes

Acknowledgments

The authors are thankful to Department of Biotechnology, Ministry of Science and Technology, Government of India, New Delhi (grant no. BT/PR 10623/AGR/05/421/2008) for the financial assistance to carry out this work.

Compliance with Ethical Standards

Conflict of interest

All the authors have no conflict of interest.

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Copyright information

© The National Academy of Sciences, India 2016

Authors and Affiliations

  • M. Raghavendra Kumar
    • 1
  • R. Ashwin
    • 1
  • D. J. Bagyaraj
    • 1
  1. 1.Centre for Natural Biological Resources and Community Development (CNBRCD)BangaloreIndia

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