PMID: 11903962Mar 21, 2002Paper

Changes in the activities of antioxidant enzymes in response to virus infection and hormone treatment

Physiologia Plantarum
Sean F ClarkePaula E Jameson

Abstract

Activities of enzymes involved in the detoxification of reactive oxygen species (catalase, glutathione reductase, peroxidase and superoxide dismutase (SOD)) were examined in the leaves of Phaseolus vulgaris L. var. Top Crop treated with plant hormones and infected with a non-lesion-forming isolate of white clover mosaic potexvirus (WClMV). The activities of catalase, glutathione reductase and SOD rapidly declined after infection while peroxidase activity was enhanced. These changes occurred before the rapid increase (5 days) in WClMV replication. A mild chlorosis appeared 7-10 days after inoculation but necrosis was never observed on inoculated leaves. Plants treated with dihydrozeatin, salicylic acid and jasmonic acid prior to WClMV inoculation showed elevated catalase, glutathione reductase, and peroxidase activity, while SOD activities remained the same as in water-treated controls. These treatments all inhibited virus replication with enzyme activities remaining near control levels. We propose that a decline in free radical scavenging capacity may be required before a rapid increase in virus replication can take place. Treatments increasing the ability of the plant to scavenge reactive oxygen species may hinder virus replic...Continue Reading

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Citations

May 11, 2013·Genetics and Molecular Research : GMR·L S A GonçalvesV M Gomes
Jul 5, 2016·Luminescence : the Journal of Biological and Chemical Luminescence·Rong LeiShuifang Zhu
Dec 5, 2012·Journal of Plant Physiology·Cristina SgherriMike F Quartacci
Sep 29, 2012·Plant Science : an International Journal of Experimental Plant Biology·Marianela RodríguezRamiro Lascano
Apr 24, 2010·Journal of Plant Physiology·Marianela RodríguezRamiro Lascano
Mar 11, 2008·Plant Physiology and Biochemistry : PPB·Rashmi Madhumita Nanda, Basanti Biswal
Jun 18, 2004·The Plant Journal : for Cell and Molecular Biology·Steven VandenabeeleFrank Van Breusegem
Nov 20, 2008·Journal of Integrative Plant Biology·Yan-Yan DuChun-Peng Song
Apr 23, 2015·Plant Science : an International Journal of Experimental Plant Biology·Petra SpoustováHelena Synková
Dec 4, 2012·Viruses·Jiri SochorRene Kizek
Apr 8, 2020·Physiology and Molecular Biology of Plants : an International Journal of Functional Plant Biology·Nisha PatwaJolly Basak
Nov 19, 2010·Molecular Biology Reports·Gayathri SathiyarajDeok Chun Yang
Jun 9, 2006·Plant Physiology·Miguel Angel TorresJeffery L Dangl

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