The Change of Enzymes Activity and Phenois Content in Cotton Cultivars with Different Resistance to V.dahliae After Inoculation

doi:10.3321/j.issn:1000-7091.2001.03.010

Abstract

Abstract: The activity of peroxidase(POD)?polyphenol oxidase(PPO)?phenylalanine aminolyase (PAL) and the content of phenols in the roots and leave of 4 cotton cultivars with different resistance to V.dahliae after inoculation were studied.The results showed that the activity of POD?PPO and PAL all were increased remarkably in 4 cotton cultivars after inoculating pathogen.Normally activity of enzymes raised peak value after inoculating 3-5 days,but the change of activity of enzymes in resistant cotton cultivars were faster and higher than susceptible ones.The content of phenols in the roots and leave of 4 cotton cultivars also increased obviously after inoculation,but whether before or after inoculation the content of phenols in the roots and leave of resistant cotton cultivars were higher than susceptible ones.

Key words: Cotton, Verticillium dahliae, Inoculation, Activity of enzyme, Phenol

CLC Number:

S435.21.24

WANG Hong, LIU Hui, YUAN Hongxia, WANG Ye, LI Honglian. The Change of Enzymes Activity and Phenois Content in Cotton Cultivars with Different Resistance to V.dahliae After Inoculation[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2001, 16(3): 46-51. doi: 10.3321/j.issn:1000-7091.2001.03.010.

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