草原与草坪2025，Vol.45Issue(2)：1-13,13.DOI:10.13817/j.cnki.cyycp.2025.02.001
种子内生菌促生和抗逆机制研究进展
Research advances in the growth-promoting and stress resistance mechanisms of seed endophytes
摘要
Abstract
A diverse community of endophytes colonizes various plant organs.These microorganisms migrate from the environment to the plant through horizontal and vertical transmission.Horizontal transmission occurs via en-vironmental routes such as inter-roots,stomata,some pollinators or flowers,enabling colonization of multiple plant organs.Vertical transmission,in contrast,involves the inheritance of endphytes through seeds to the next generation.These seed endophytes not only promote the plant's own growth and development,but also enhance the plant's ability to tolerate adversities such as salinity,drought,pests and diseases.This review provides an overview of the transmis-sion modes and diversity of seed endophytes,with a focus on recent advances in understanding their roles in plant-microbe symbiosis at the physiological level.We discuss their contributions to promoting plant growth and enhancing plant resistance to biotic stresses(inhibition of pathogens,resistance to herbivores and insects)and abiotic stresses(heavy metal tolerance,salinity tolerance,and drought tolerance).Finally,we explore the future research directions of seed endophytes in terms of colonization,diversity,development of beneficial strains,and mechanisms of growth pro-motion and stress tolerance.关键词
种子内生菌/传播/多样性/促生/耐盐性/抗旱性Key words
seed endophytes/transmissions/diversity/growth-promoting/salt tolerance/drought resistance分类
农业科技引用本文复制引用
李善家,袁亚玲,武乐乐,李江勇..种子内生菌促生和抗逆机制研究进展[J].草原与草坪,2025,45(2):1-13,13.基金项目
甘肃省重点研发计划(21YF5FA082) （21YF5FA082）
中国科学院寒旱区陆面过程与气候变化重点实验室开放基金项目(LPCC2023003) （LPCC2023003）
