作物学报2025，Vol.51Issue(5)：1133-1155,23.DOI:10.3724/SP.J.1006.2025.42055
谷类作物的胚乳发育及其对种子休眠与萌发的作用
Endosperm development of cereal crops and its role in seed dormancy and germination
摘要
Abstract
In angiosperms,double fertilization triggers the simultaneous development of two closely adjacent tissue,embryo and endosperm.The function of endosperm is not only to provide nutrients and serve as a mechanical barrier for the embryo,but also to act as a growth regulator for the embryo during seed development,dormancy and germination,thereby controlling the vitality,dormancy,and germination of the seeds.But so far,the development of endosperm and its regulatory mechanism are not clear enough.In the present paper,the recent progress achieved in the endosperm development and its regulatory mechanism,as well as the regulation of these events on seed dormancy and germination,was reviewed,including morphogenesis,differentiation of aleurone layer and starch endosperm,programmed cell death of starch endosperm,accumulation of storage proteins in endosperm during endosperm development,as well as the regulation of cell cycle regulatory factors,phytohormones,and epigenetic on en-dosperm development,and the role of endosperm in embryo development,seed dormancy and germination.Finally,the scientific issues that need to be further researched in this field are proposed,attempting to provide reference for understanding the molecu-lar mechanisms of endosperm development and its regulation,and thereby improving the yield and quality of cereal crops.关键词
休眠与萌发/胚乳发育/表观遗传/基因印迹/植物激素Key words
dormancy and germination/endosperm development/epigenetic/gene imprinting/phytohormone引用本文复制引用
宋松泉,唐翠芳,程红焱,王程亮,袁良兵,左胜..谷类作物的胚乳发育及其对种子休眠与萌发的作用[J].作物学报,2025,51(5):1133-1155,23.基金项目
本研究由郴州国家可持续发展议程创新示范区建设省级专项(2022sfq06)以及郴州市人民政府和湘南学院人才项目资助. This study was supported by the Provincial Special Project of Chenzhou National Sustainable Development Agenda Innovation Demonstra-tion Zone Construction(2022sfq06),and the Chenzhou Municipal People's Government and Xiangnan University Talent Project. （2022sfq06）
