杨树耐盐性研究进展

Research Progress on the Salt-tolerance of Populus spp.

杨树生长迅速、生物产量高,是一种世界性的造林树种,一些杨树具有较强的耐盐性,对盐碱化土地的利用和开发具有重要价值。对盐胁迫下杨树的植物学特征、生理生化指标变化、耐盐分子机制和遗传改良策略进行了综述,并对深入地解析杨树耐盐分子机制应采取策略和在生产中应用前景进行了讨论,以期为筛选和培育耐盐杨树品种提供借鉴和参考。

Populus spp.is a world-wide tree species for forestation with rapid growth and higher biomass.Due to stronger salt-tolerance of some Populus spp.varieties,they may be used to exploit the potential value of the salinized land.Several properties of Populus spp.under salt stress were reviewed,including the botanical features,physiological and biochemical indexes,and molecular response;furthermore,the molecular mechanism and genetic improvement strategies for poplar salt-tolerance were outlined and discussed,so as to provide reference for screening and developing Populus spp.variety with slat tolerance.