Trends in Biosciences

  • Year: 2015
  • Volume: 8
  • Issue: 2

Study of Antioxidant Enzymes Activity in Wilt Resistant and Susceptible Pigeonpea Genotypes during Fusarium udum Infection

  • Author:
  • Rakesh M. Swami1,, M. K. Mahatma1,2
  • Total Page Count: 8
  • DOI:
  • Page Number: 575 to 582

1Department of Plant Molecular Biology and Biotechnology, Navsari Agricultural University, Navsari, 396 450, India

2Directorate of Groundnut Research, Indian Council of Agricultural Research, P. B. No. 5, Junagadh, 362 001, India

Abstract

The present investigation was carried out in wilt (Fusarium udum) resistant (ICPL 87119, ICP 8863 & Vaishali) and susceptible (ICP 2376 & T15-15) genotypes of pigeonpea at 0 day after infection (DAI), 5 DAI and 10 DAI in infected and non-infected tissues to identify some biochemical markers for wilt resistance. The enhancement in SOD and GPOX was more in infected resistant genotypes than the infected susceptible genotypes at 5 DAI but later it declined in all the genotypes. On the other hand, the SOD activity was enhanced in the infected roots of all the genotypes at 10 DAI but the fold enhancement was more in the resistant genotypes (about 2 fold) than the susceptible genotypes. The APOX and GR activity was increased significantly in both leaf and root tissues of all genotypes but enhancement was more in infected resistant genotypes than the susceptible ones at post infection stages (5 DAI & 10 DAI). These results reveal that higher SOD, APOX and GR activity in resistant genotypes may restrict the disease after infection.

Keywords

SOD, GPOX, CAT, fusarium