Effect of Toxins from P. oryzae 90-2 on POD,SOD and Esterase isozymes of Rice Male-Sterile Cytoplasm

doi:10.7668/hbnxb.1999.S1.023

Abstract

Abstract: The seedlings of four kinds of rice Xieqingzao CMS and their normal cytoplasm with homocaryon,used as experimental materials, were treated soakedly by crude toxins from P. oryzae 90-2 strain which was special pathogenic to wild abortive rice CMS. After four hours of treat-ment,IEF was utilited to detect their changed states of SOD,POD and esterase isozymes in their leaves in order to analysis the differences of pathologic reaction among them. The results showed that differences of these isozyme types in homocaryon CMS existed to some extent. The experi-ments revealed that their reactions of activities and isozyme types to the toxins were different. The experiment can obtain the conclusion that the change of POD isozyme types is related to resis-tance of CMS to the toxins in rice.

Key words: Pyricularia oryzae, toxin, Rice, Male-sterile cytoplasm, Peroxidase, Superoxidase dis-mutase, Esterase, Isozyme

CLC Number:

S435.111.49

Yan Zhifen, Chen Yongqin, Cui Siping, Ma Chunhong, Wei Jiankun. Effect of Toxins from P. oryzae 90-2 on POD,SOD and Esterase isozymes of Rice Male-Sterile Cytoplasm[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1999, 14(S1): 101-106. doi: 10.7668/hbnxb.1999.S1.023.

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