《植物生理学报》 2015, 51(8): 1235-1240

转基因改良水稻磷吸收效率的策略

刘于, 孔玉珠, 刘慧丽, 莫肖蓉^*

浙江大学生命科学学院, 植物生理学与生物化学国家重点实验室, 杭州310058

通信作者：莫肖蓉；E-mail: xiaorong@zju.edu.cn；Tel: 0571-88206133

摘　要：

土壤中由于磷的固定造成作物可以吸收的有效磷较低, 培育磷高效吸收的水稻新品种能够有助于解决缺磷所造成的农作物减产问题, 为实现农业的可持续发展打下良好的基础。本文综述了水稻磷信号机制的最新研究进展, 并总结了转基因改良水稻磷吸收效率的成功案例。这些改良策略对其他作物的转基因改良提供了重要的依据。

关键词：水稻; 磷吸收; 磷酸盐转运体; 转基因改良

收稿：2015-06-03   修定：2015-07-13

资助：国家自然科学基金(青年基金) (31400224)。

The Strategyes on Engineering Improvement of Phosphorus Uptake Efficiency in Rice

LIU Yu, KONG Yu-Zhu, LIU Hui-Li, MO Xiao-Rong^*

State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejing University, Hangzhou 310058, China

Corresponding author: MO Xiao-Rong; E-mail: xiaorong@zju.edu.cn; Tel: 0571-88206133

Abstract:

The low mobility of phosphorus in soil cause low concentration of its assimilable form phosphate (Pi), which is often a limiting factor for crop growth in agriculture. Developing cultivars with improved Pi uptake efficiency is essential for the yield and sustainability of agriculture. In this review, we presented the mechanisms on phosphate signaling and homeostasis. Based on this understanding, we further introduced several successful examples in engineering improvement of phosphorus uptake efficiency in rice, which supplied very important cues for other crop improvement.

Key words: rice; phosphorus uptake; phosphate transporter; engineering improvement