转C_4光合酶基因水稻根系对水分调控响应的探讨  

Response of Root Physiological Characteristics of Transgenic Rice Expressing C_4 Photosynthesis Enzyme Genes to Water Regulation

作　　者：张边江[1] 

机构地区：[1]南京晓庄学院植物遗传资源与种质改良研究所,南京211171

出　　处：《湖北农业科学》2016年第5期1099-1100,1104,共3页Hubei Agricultural Sciences

基　　金：江苏省教育厅高校自然基金项目(14KJB210005)

摘　　要：水稻(Oryza sativa L.)在一定程度的水分亏缺下可提高产量和水分利用效率。在干旱条件下,转C4光合酶基因水稻的C4光合酶基因能够被诱导表达,具有较高的根系活力,从而保持高效的碳同化效率。探讨了转C4光合酶基因水稻在水分调控下,其根系生理特性和根系活力与光合生产力的关系,论述了转C4光合酶基因水稻高光合生产力的根系生理基础,旨在为水稻的高产育种和节水栽培技术提供参考。The production and water use efficiency of rice can increase under water deficit. Under drought conditions, the C4 photosynthesis enzyme genes were induced to express highly and the activity of root system was promoted in transgenic rice with high carbon conversion efficiency. In this study, the relations among root physiological characteristics, yield components and root vigor were studied in transgenic rice expressing C4 photosynthesis enzyme genes under the water regulation. The root physiological basis for high yield of transgenic rice was elucidated to provide the references for rice breeding and water-saving cultivation technology.

关 键 词：水稻(Oryza SATIVA L.)根系 光合生产力 水分调控 

分 类 号：S511[农业科学—作物学]