The Induced Effects of Salicylic Acid on Tobacco Resistance to Cucumber Mosaic Virus

doi:10.7668/hbnxb.2008.06.025

Abstract

Abstract: The changes of enzyme activities of peroxidase(POD)and catalase(CAT),the content of hydrogen peroxide(H₂O₂)and the disease occurrence were studied after the tobaccoLeaves were treated with salicylic acid(SA),then were inoculated with cucumber mosaic virus(CMV)the next day.The results showed that,after 21 d of inoculation with CMV,the disease indexes of tobacco plants treated with SA was lower than CK,and the activity of CAT decreased,while the activity of POD and the content of H₂O₂increased in the plants treated with SA.The results indicated that salicylicacid could induce the tobacco resistance to cumuber mosaic virus.

Key words: Tobacco, Salicylic acid, Cucumber mosaic virus, Peroxidase, Catalase, Hydrogen peroxide

CLC Number:

S435.72

SHI Jin-ge, LI Zhan-jie, YANG Tie-zhao. The Induced Effects of Salicylic Acid on Tobacco Resistance to Cucumber Mosaic Virus[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2008, 23(6): 108-111. doi: 10.7668/hbnxb.2008.06.025.

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http://www.hbnxb.net/EN/Y2008/V23/I6/108

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