A Study on lsozyme Patterns of Superoxide Dismutase and Lipid Peroxidation in Anthers of Cytoplasmic Male-Sterile Lines and the Corresponding Maintainer Line of Wheat

doi:10.3321/j.issn:1000-7091.1994.01.005

Abstract

Abstract: The isozyme patterns and activities of superoxide dismutase (SOD) and lipid peroxidation in anthers of cytoplasmic male-sterile lines and the corresponding maintainer line of wheat have been comparatively studied.The results indicated that there were no significant differences in isozyme patterns and activities of SOD between male-sterile and the corresponding maintainer lines at uninucleate stage of pollen development. Compared to maintsiner line, the number of isozyme bands of SOD was reduced by one and the activities of SOD were decreased pronouncedly in anthers of male-sterile lines at binucleate and trinucleate stages of pollen development. The contents of malondialdehyde in anthers of male-sterile lines were visuably higher than that of maintainer line at any stage of pollen development.Moreover, the male-sterile lines lacked one isozyme band of SOD in flag leaves in comparison with the maintainer line. It is concludcd that the reduction of capability for scavenging active oxygen and intensification of lipid peroxidation in anthers may be related to pollen abortion of cytoplasmic male-sterile lines of wheat.

Key words: Wheat, Cytoplasmic male-sterility, Superoxide dismutase (SOD), Isozyme, Lipld peroxidation

CLC Number:

S512.101

Zhao Huijie, Lin Xuewu, Wu Yueting, Zhan Kehui. A Study on lsozyme Patterns of Superoxide Dismutase and Lipid Peroxidation in Anthers of Cytoplasmic Male-Sterile Lines and the Corresponding Maintainer Line of Wheat[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1994, 9(1): 25-29. doi: 10.3321/j.issn:1000-7091.1994.01.005.

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