Mechanisms of Salt Tolerance in Rice Plants: Compatible Solutes and Aquaporins

水稻耐鹽之機制：相容性溶質與水通道蛋白

10.30061/CEB.201506_12(2).0001

高景輝(Ching-Huei Kao)

水通道蛋白 ； 相容性溶質 ； 水稻 ； 鹽分逆境 ； Aquaporins ； Compatible solutes ； Rice ； Salt stress

作物、環境與生物資訊

12卷2期（2015 / 06 / 01）

73 - 82

英文

降低環境之水勢可造成植物滲透逆境。土壤高鹽分是引起植物滲透逆境之主因之一。水稻對鹽分逆境非常敏感， 因此鹽分逆境是限制水稻生長與產量之一項主要的非生物性逆境。相容性溶質之累積被認為是克服鹽分逆境之一種策略。水通道蛋白可幫助水分透過膜之運送。到目前為止，水稻耐鹽分逆境機制尚未被充分瞭解，本文說明相容性溶質與水通道蛋白在水稻耐鹽機制所扮演角色之主要研究進展。

Decrease in water potentials in the environment can impose osmotic stress to plants. Soil salinity is one of the major causes of osmotic stress of plants. Rice is known to be sensitive to salt stress. Therefore, soil salinity is a major abiotic stress limiting growth and productivity of rice plants. The accumulation of compatible solutes is often considered as a basic strategy for protection of plants from salt stress. Aquaporins (AQPs) are water channel proteins that facilitate the water movement across membrane. The mechanisms underlying salt stress tolerance of rice plants are far from being completely understood. The present review summarizes the major research advances in elucidating the roles of compatible solutes and AQPs in salt tolerance of rice plants.