野外灭绝级植物爪耳木濒危因素探讨  

Research on Endangered Factors of Lepisanthes unilocularis Leenhouts,an Extinct Plant in the Wild

作　　者：汤欢[1] 李英英 袁浪兴 羊青[1] 王茂媛[1] 晏小霞[1] 王祝年[1] 刘咲頔 王清隆[1] Tang Huan;Li Yingying;Yuan Langxing;Yang Qing;Wang Maoyuan;Yan Xiaoxia;Wang Zhunian;Liu Xiaodi;Wang Qinglong(Tropical Crops Genetic Resources Institute,Chinese Academy of Tropical Agricultural Sciences/Hainan Tropical Botanical Garden/Key Laboratory of Biology and Cultivation of Herb Medicine,Ministry of Agriculture and Rural Affairs,P.R.China/Identification and Evaluation Center of Tropical Agricultural Wild Plant Gene Resources,Ministry of Agriculture and Rural Affairs,P.R.China/Hainan Provincial Engineering Research Center for Tropical Medicinal Plants,Haikou 571101,Hainan,China)

机构地区：[1]中国热带农业科学院热带作物品种资源研究所/海南热带植物园/农业农村部中药材生物学与栽培重点实验室/农业农村部热带农业野生植物基因资源鉴定评价中心/海南省热带药用植物工程研究中心,海南海口571101

出　　处：《绿色科技》2024年第9期112-117,共6页Journal of Green Science and Technology

基　　金：海南省自然科学基金面上项目(编号:321MS090);农业农村部科技教育司政府购买服务项目(编号:13230203);国家热带植物种质资源库。

摘　　要：爪耳木是国家二级保护珍稀濒危物种,为我国特有植物,作为一种在野外已灭绝的植物,对其开展相关研究和重新回归野外具有重要意义,且对爪耳木属植物系统发育和进化的研究有重要参考价值。就爪耳木濒危因素进行了探讨。研究结果表明:爪耳木濒危的主要影响因素有自然结实率低、种子为顽拗性种子、原生境恶劣、自身遗传多样性、人为干扰等。对爪耳木开展濒危因素探讨,能更好地指导爪耳木的繁育,为今后开展爪耳木的保护和野外回归做准备,也有益于其他濒危物种的研究。Lepisanthes unilocularis Leenhouts,as a rare and endangered species protected at the national level with second class,is the Chinese endemic plant.Lepisanthes unilocularis Leenhouts is now an extinct plant in the wild.It is of great value to carry out relevant research and reintroduction to the wild.It also has important reference value for the study of the phylogeny and evolution of Lepisanthes Leenhouts.This paper summarized and analyzed the endangered factors of Lepisanthes unilocularis Leenhouts.The research results show that the main factors affecting the endangerment of the plant include low natural seed setting rate,recalcitrant seed,bad original habitat,genetic influence,human interference and so on.It can provide better guidance for seedling propagation and prepare for the protection and reintroduction of Lepisanthes unilocularis Leenhouts.This study will also benefit the research of other endangered species.

关 键 词：爪耳木 灭绝级 濒危因素 野外回归 

分 类 号：Q948[生物学—植物学]