水稻氮代谢对根际氧气供应的响应研究

doi:10.3969/j.issn.1006-8082.2015.01.003

摘要/Abstract

摘要： 氧气在水稻生长发育过程中起着重要的作用，水稻的需水需氧特异性矛盾容易造成根际氧气供应不足、根系呼吸减弱、矿质营养吸收降低，进而引起水稻碳氮代谢紊乱，不利于其生长发育及产量形成。因此，深入研究水稻根际氧生理及根际氧环境改善方案，对于水稻耐涝高产以及提高氮素利用均具有重要意义。本文综述了根际氧气供应对水稻生长、氮素吸收及同化和相关氨基酸代谢、氮肥利用率等的影响研究，并对今后的研究进行了展望。

关键词: 水稻, 缺氧胁迫, 氮代谢, 根际氧浓度

Abstract: Oxygen plays an important role in rice growth，however rice root experiences oxygen deficiency often in the manufacturing process for its special need of water and oxygen, which would reduce the root breath and absorption of mineral nutrition，result confusion to carbon metabolism, and prejudice to its growth and yield formation. It is of great importance to deeply understand the rice root oxygen physiology and rhizosphere oxygen circumstance improvement in rice anti-water-logging and high yield and enhance nitrogen utilization. In this paper we summarized the study on effect of oxygen content in rhizosphere to rice growth and nitrogen uptake, assimilation and related amino acid metabolism and nitrogen use efficiency, and forecasted the related research in the future.

Key words: rice, oxygen deficiency stress, nitrogen metabolism, oxygen content in rhizosphere

中图分类号:

S511

胡志华, 朱练峰, 林育炯, 胡继杰, 张均华, 金千瑜*. 水稻氮代谢对根际氧气供应的响应研究[J]. 中国稻米, 2015, 21(1): 12-17.

HU Zhi-Hua, ZHU Lian-Feng, LIN Yu-Jiong, HU Ji-Jie, ZHANG Jun-Hua, JIN Qian-Yu-*. Research on Rice Nitrogen Metabolism Response to Oxygen Content in Rhizosphere[J]. , 2015, 21(1): 12-17.

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