文献类型：期刊文献

中文题名：珍稀濒危植物种子休眠的成因及解除方法研究进展

英文题名：Research Progress on Seed Dormancy and Germination Mechanism of Rare and Endangered Plants

作者：覃美英[1,2,3] 张树林[2,3] 单心悦[3] 冯璐莹[3] 赵罕[3] 乌云塔娜[3] 李芳东[3] 朱高浦[1,3] 刘蔚漪[1]

第一作者：覃美英

机构：[1]西南林业大学林学院/国家林业草原丛生竹工程研究中心,云南昆明650224;[2]安阳工学院生物与食品学院,河南安阳455000;[3]中国林业科学研究院,经济林研究所/经济林种质创新与利用国家林业和草原局重点实验室,河南郑州450003

年份：2023

卷号：42

期号：4

起止页码：62-69

中文期刊名：中国野生植物资源

外文期刊名：Chinese Wild Plant Resources

收录：CSCD:【CSCD_E2023_2024】；

基金：国家重点研发计划项目:特色经济林高效育种技术与品种创制(2019YFD1001200)。

语种：中文

中文关键词：珍稀濒危植物;种子休眠;种子萌发;内源调控因子;机理

外文关键词：Rare and endangered plants;Seed dormancy;Seed germination;Endogenous regulatory factors;Mechanism

分类号：S330

摘要：珍稀濒危植物为人类提供了稀缺的化工、医药、生活原料等产品,还是地质变迁、植物进化和系统发育等的见证者,是维护地球生物多样性不可或缺的重要成员之一。然而,部分珍稀濒危植物的种子因休眠作用难以萌发,这是导致它们濒临灭绝的主要原因之一。为探究珍稀濒危植物种子休眠的原因,本文综述了近年来造成珍稀濒危植物种子休眠的外因和内因,特别归纳了引起种子休眠的关键基因、miRNAs和转录因子,并从物理和化学两个层面综述了解除休眠的方法,最后讨论了未来研究的重点方向,将为濒危植物种子休眠与萌发的分子调控和其它难以打破休眠的植物苗木工程化繁育技术体系的建立奠定理论基础和科学依据。
Rare and endangered plants provide mankind with scarce products such as chemicals,pharmaceuticals,and raw materials.They are also witnesses of geological changes,plant evolution and phylogeny,and are one of the indispensable members to maintain the biodiversity of the earth.However,the seeds of some rare and endangered plants are difficult to germinate due to dormancy,which is one of the main reasons why they are on the verge of extinction.To explore the causes of seed dormancy in rare and endangered plants,this paper reviewed the external and internal factors that have caused seed dormancy in recent years.The key genes,miRNAs and transcription factors that have caused seed dormancy were especially summarized,which would lay the foundation for molecular regulation of seeds dormancy and germination.It also reviewed the methods of dormancy release from both physical and chemical levels,and finally discussed the key directions for future research,which would lay the theoretical foundation and scientific basis for the molecular regulation of seed dormancy and germination of endangered plants and the establishment of engineering breeding technology systems for seedlings of other plants that are difficult to break dormancy.