独一味对高原逆境生境的适应性研究进展

Research Progress on the Adaptability of Lamiophlomis rotata(Benth.)Kudo to Plateau Adverse Habitats

藏药独一味为唇形科独一味属植物,为常用大宗藏药材,作为一级濒危藏药其资源的可持续利用具有代表性,掌握其在高原逆境下的物种特征与适应机理尤为重要。本文从独一味生境特点、形态特征、种群生态学特征、繁殖特征等方面进行了整理,分析独一味在青藏高原草地生长特点及逆境生态因子,并从生物学特征和生理特性两方面分析其在干旱、寒冷、不同退化草地下的适应机理。笔者认为,需从基因和分子生物学等多方面深入研究其抗逆机理,探寻适宜独一味的种植模式,为引种驯化、栽培管理、资源保护及可持续利用提供理论依据。

Tibetan medicine Lamiophlomis rotata(Benth.)Kudo is a plant belonging to the genus L.rotata(Benth.)in Labiatae,which is a commonly used bulk Tibetan medicine.As a first-class endangered Tibetan medicine,its sustainable utilization of resources is representative,and it is particularly important to master its species characteristics and adaptation mechanism under high Plateau adversity.This paper sorts out the habitat characteristics,morphological characteristics,population ecological characteristics,reproductive characteristics and other aspects of L.rotata(Benth.),analyzes the growth characteristics and adverse ecological factors of L.rotata(Benth.)in the Qinghai Tibet Plateau grassland,and analyzes its adaptation mechanism in drought,cold and different degraded grass from two aspects of biological characteristics and physiological characteristics.The author believes that it is necessary to study its stress resistance mechanism from many aspects,such as gene and molecular biology,and explore the suitable planting mode of monoculture,so as to provide a theoretical basis for introduction and domestication,cultivation management,resource protection and sustainable utilization.