中国水稻科学 ›› 2013, Vol. 27 ›› Issue (1): 65-70.DOI: 10.3969/j.issn.10017216.2013.01.009

• 研究报告 • 上一篇    下一篇

缺磷条件下蔗糖对水稻磷素吸收利用起重要作用

赵建琦,吴学能,曹越,印洁,孙淑斌* ,徐国华   

  1. 南京农业大学 资源与环境科学学院, 江苏 南京 210095;
  • 收稿日期:2012-06-11 修回日期:2012-09-02 出版日期:2013-01-10 发布日期:2013-01-10
  • 通讯作者: 孙淑斌*,
  • 基金资助:

    高等学校博士学科点专项科研基金资助项目(20090097110038); 国家自然科学基金资助项目(31172014)。

Sucrose Plays an Important Role in the Uptake and Use of Phosphate in Rice under Pdeficiency Conditions

ZHAO Jianqi, WU Xueneng, CAO Yue, YIN Jie, SUN Shubin*, XU Guohua   

  1. College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China;
  • Received:2012-06-11 Revised:2012-09-02 Online:2013-01-10 Published:2013-01-10
  • Contact: SUN Shubin*,

摘要: 研究了水稻缺磷条件下蔗糖对其生长、磷素吸收利用的影响。结果表明,外加蔗糖可以提高水稻缺磷条件下的生物量,可以促进水稻缺磷条件下的磷素吸收;利用磷转运蛋白基因OsPT2启动子+ GUS报告基因转基因水稻材料,进一步探讨了蔗糖在水稻缺磷条件下促进磷素吸收利用的分子机理。结果表明,水稻磷转运蛋白OsPT2参与了蔗糖促进缺磷水稻的磷素吸收与转运。

关键词: 蔗糖, 水稻, 磷, OsPT2

Abstract: The effects of sucrose on the growth, phosphorus uptake in rice under phosphate deficient conditions were studied. The results showed that exogenous sucrose can increase the biomass of rice, promote the absorption of phosphorus in rice under phosphate deficiency. Using phosphate transporter gene OsPT2 promoter +GUS reporter gene transgenic rice, we further explored the molecular mechanism that the uptake and use of phosphate was promoted in rice by sucrose under phosphate deficiency. The results showed that rice phosphate transporter OsPT2 was involved in this process.

Key words: sucrose, rice, phosphate, OsPT2

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