摘要
非生物胁迫影响了草坪草和牧草体内多种代谢物及通路的变化,抑制植物的生长。外源物质处理可以有效提高草坪草和牧草对逆境的抗性。本文综述了植物激素、生长调节剂、渗透调节物质、气体分子、离子及氨基酸类物质对草坪草和牧草逆境应答的影响。外源物质之间存在协同或拮抗作用,共同调控了草坪草和牧草下游相关基因的表达,改变了生理代谢途径,缓解了活性氧的伤害、减轻了细胞膜的损伤和离子的毒害,从而起到延缓衰老、提高抗逆性和改善草坪品质的效果。针对模式植物上植物激素的研究进展,提出了今后在草坪草抗逆应答方面需要开展的研究工作。
Plant growth,development,and metabolism are severely affected under abiotic stress conditions.Exogenous plant hormones and small molecule compounds improve the growths of turfgrass and forages and alleviate damages caused by abiotic stresses.This review summarizes the effects of plant hormones,plant growth regulators,osmolytes,ions,amino acids,and gaseous molecules on the abiotic stress responses of turfgrass and forage.These compounds functioned antagonistically or synergistically to modulate downstream gene expression,regulate physiological pathways,detoxify reactive oxygen species,mitigate cell membrane damage,and regulate compartmentation of toxic ion,resulting in delayed senescence,increased abiotic stress tolerance,and improved turf quality.Future studies are proposed based on the progress of model plants.
作者
产祝龙
张慧
刘梦垚
CHAN Zhulong;ZHANG Hui;LIU Mengyao(Key Laboratory of Horticultural Plant Biology/Key Laboratory of Urban Agriculture in Central China,Ministry of Education/Ministry of Agriculture,College of Horticulture and Forestry Sciences,Huazhong Agricultural University,Wuhan 430070,Hubei,China)
出处
《草业科学》
CAS
CSCD
2019年第12期3007-3023,共17页
Pratacultural Science
基金
十三五重点研发计划项目(2017YFD0201305)
华中农业大学自主科技创新基金(2016RC010)
国家自然科学基金面上项目(31872143)
关键词
植物激素
生物调节剂
草坪草
牧草
非生物逆境
抗逆性
plant hormone
plant growth regulator
turfgrass
forage
abiotic stress
stress response
