摘要
沙冬青是我国西北荒漠地区唯一的超旱生常绿灌木树种 ,生境严酷 ,抗逆性极强 ,是一种优良的种质资源 ,现已被列为珍稀濒危植物 .本文综述了沙冬青的生物学特性、生态生理特征、珍稀濒危的原因及扩大快繁的组织培养研究进展 ,从形态解剖特点、超微组织生理代谢调控角度 ,从抗旱、抗寒、抗盐碱 3个方面分析了沙冬青能在逆境中得以生存的原因及其适应残酷生境的机理 ,阐述了沙冬青的多种价值及开发应用前景 .参 4
As the only evergreen broad leaved species in the desert of northwestern China, the rare and endangered plant Ammopiptanthus mongolicus (Maxim) Cheng is a good plant with strong resistant capability and forms typical superxerophytic structure due to its long growth in the adverse environment. The biological, ecological and physiological traits, the progress of tissue culture and endangered reasons of A. mongolicus under adverse circumstances were reviewed in this paper. Based on the previous studies on the morphological and anatomic characteristics, tissue ultrastructural features and physiological metabolic regulation, the mechanism of drought,freezing, salt and other stress tolerant capabilities that make A. mongolicus survive the extreme adverse circumstances and the harsh reasons that the species could be adapted to were analyzed. The great value and usable prospect of A. mongolicus were proposed. Ref 43
出处
《应用与环境生物学报》
CAS
CSCD
2004年第3期384-388,共5页
Chinese Journal of Applied and Environmental Biology
基金
国家自然科学基金(30271067
30371143)
"863"国家林木育种项目(2001AA212151)
国家基础研究规划项目(G1999016005)资助~~
