关键词: 植物水通道蛋白；盐胁迫；盐胁迫应答；水分平衡

Abstract:

Aquaporins (AQPs) is one of the largest superfamily of channel proteins in plant, where they facilitate the transport of water and/or small neutral solutes or gases. A wide range of regulation properties, such as translational regulation, gating mechanism, heterotetramerization and subcellular localization, make aquaporins a large contribution to membrane hydraulic conductance, which plays an important role in controlling water absorbing and transporting in plants. Osmotic stress, ion toxicity, active oxygen and other stresses induced by salinity severely affect plant growth and development. Plant aquaporins are integrated throughout the adaptations to salinity. The functional characteristics of plant aquaporins, injury forms of salt stress on plants, and roles of aquaporins helping the plant in combating salt stress were reviewed. And the study in plant aquaporins and feasibility in improving plant salt tolerance by rational use of aquaporins were proposed.

Key words: plant aquaporins, salt stress, salt stress response, water balance