珍稀植物银缕梅濒危机理及繁育保护研究  

Study on Endangered Mechanism and Breeding Protection of Parrotia Subaequalis

作　　者：赖辅鑫 阮向东[2] 赵凯 台昌锐 阳艳芳 吴彦 LAI Fuxin;RUAN Xiangdong;ZHAO Kai;TAI Changrui;WU Yan(School of Life Sciences,Anqing Normal University,Anqing 246133,China;Investigation,Planning and Design Institute of State Forestry Administration and Grassland Administration,Beijing 100714,China)

机构地区：[1]安庆师范大学生命科学学院,安徽安庆246133 [2]国家林业局和草原局调查规划设计院,北京100714

出　　处：《安庆师范大学学报（自然科学版）》2022年第4期83-88,共6页Journal of Anqing Normal University(Natural Science Edition)

基　　金：教育部国家级新农科研究与改革实践项目(2020074);国家林业局和草原局调查规划设计院资助课题。

摘　　要：银缕梅是我国特有的珍稀保护植物,其无论树形还是叶色都极具观赏价值,但由于遗传和环境影响,该物种处于极度濒危状态。银缕梅濒危主要归因于其属于极小基因组,遗传多样性低且表达困难;同时种群分布区域窄、环境生态因子胁迫、传粉困难、种间竞争力低下等因素也极大地制约了该物种的生存和生长。为了扩大银缕梅野生种群和保护生物多样性,目前已开展了人工繁育和栖息地保护等多方面的工作。在现有的研究基础上,本文对银缕梅濒危机理和人工繁育进行了综合讨论和进展总结,并对后续工作提出了系列建议。Parrotia subaequalis is a unique rare and endangered wild protection plant in China,and both its tree form and leaf color are of great ornamental value.However,Parrotia subaequalis is critically endangered due to its genetic and environmental impacts.The endangered mechanism of Parrotia subaequalis is specifically manifested in its small genome,low genetic diversity,resulting in expression difficulties,and the narrow distribution area,stress of various ecological factors,pollination difficulties and low interspecific competitiveness also greatly restrict its survival and growth.In order to expand the wild population of Parrotia subaequalis and protect biodiversity,current scholars have carried out various work such as artificial breeding and habitat protection.In this paper suggestions are made for the future research of endangered mechanism and the protection direction of artificial breeding.

关 键 词：银缕梅 野外分布 濒危机理 繁育保护 

分 类 号：Q948.1[生物学—植物学]