Mechanisms of Salt Tolerance in Rice Plants: Na^+ Transporters

水稻耐鹽之機制：鈉離子轉運蛋白

10.30061/CEB.201509_12(3).0001

高景輝(Ching-Huei Kao)

鈉離子 ； 轉運蛋白 ； 水稻鹽分逆境 ； Na^+ transporters ； Rice ； Salt stress

作物、環境與生物資訊

12卷3期（2015 / 09 / 01）

113 - 119

英文

鈉不是植物生長的必要元素，細胞質內鈉離子濃度過高會造成植物毒害，植物細胞維持低濃度鈉離子之能力與植物在鹽分逆境下生長能力有關。證據顯示，鈉離子轉運蛋白利用排除細胞質內鈉離子，或者阻止鈉離子轉運到葉片之方式，降低鈉離子毒害。本文在於探討鈉離子轉運蛋白在水稻鹽分逆境耐性上所扮演之角色。

Sodium (Na) is not essential for plant growth. High cytosolic Na^+ concentrations can damage plants. The ability of plant cells to maintain low cytosolic Na^+ concentrations is an essential process associated with the ability of plants to grow under salt stress conditions. There is evidence showing that Na+ transporters play an important role in reducing Na^+ toxicity by excluding Na+ from the cytosol or preventing Na^+ transport to the leaves. In this review, we discuss the roles of Na^+ transporters in salt stress of rice plants. Evidence is provided to show that Na^+ transporters play regulatory roles in the tolerance of rice plants to salt stress.