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The characteristics of resistance to photooxidation of transgenic rice (Oryza sativa L.) plants with maize genes coding for C_(4) photosynthesis enzyme

Huang Xueqing, Jiao Demao

Institute of Agrobiological Genetics and Physiology,Jiangsu Academy of Agricultural Sciences.Nanjing 210014,Jiangsu

Abstract

The malondialdehyde (MDA, a product of membrane-lipid peroxidation) content was less than that in untransformed rice, and the chlorophyll and protein contents in transgenic rice plants (especially in transgenic rice plants with maize PEPC and PPDK+PEPC genes) decreased less than those of untransformed rice, which showed that there was a stronger tolerance in transgenic rice plants to photooxidation. This work provided the experimental evidence that new varieties with photooxidation-tolerant germplasm can be created by introducing the desired germplam using biotechnology.

Key words: Transgenic rice plant;Photooxidation;Chlorophyll fluorescence;Membrane-lipid peroxidation

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Citing This Article：

Huang Xueqing, Jiao Demao. The characteristics of resistance to photooxidation of transgenic rice (Oryza sativa L.) plants with maize genes coding for C_(4) photosynthesis enzyme. Acta Physiol Sin 2001; 53 (5): (in Chinese with English abstract).