摘要
为探明淹水胁迫过程中澳洲茶树的生理响应机制,对其淹水胁迫下内源激素动态变化规律进行了研究。结果表明,在淹水胁迫前期,ZR,GA3,IAA和ABA这4种内源激素含量都呈小幅波动,而胁迫中、后期,ZR,GA3,IAA这3种促进植株生长的激素整体呈升高趋势,ABA则呈下降趋势,(ZR+GA3+IAA)/ABA的值也逐渐升高。研究结果将有助于更深入了解澳洲茶树在淹水条件下的激素应答机制,为种植生产中的合理用水提供理论基础。
To explore the physiological response mechanism of Melaleuca alternifolia to flooding stress, the dynamic changes of endogenous hormones under flooding stress were studied. The results showed that the content of ZR, GA3, IAA and ABA fluctuated slightly in the early stage of flooding stress. The content of ZR, GA3 and IAA increased overall in the middle and late stage of flooding stress, while the content of ABA showed a downward trend. The ratio of(ZR+GA3+IAA)/ABA increased gradually in the middle and late stage of flooding stress. The results of this study will help to understand the response mechanism of endogenous hormones of Melaleuca alternifolia under flooding stress, and provide the theoretical basis for rational water use in planting production.
作者
陈博雯
袁剑英
覃子海
张烨
肖玉菲
张晓宁
刘海龙
CHEN Bowen;YUAN Jianying;QIN Zihai;ZHANG Ye;XIAO Yufei;ZHANG Xiaoning;LIU Hailong(Guangxi Forestry Research Institute,Key Laboratory of Central South Fast-growing Timber Cultivation of Forestry Ministry of China,Guangxi Key Laboratory of Superior Timber Trees Resource Cultivation,Nanning 530002,China;Guangxi State Gaofeng Forest Farm,Nanning 530002,China)
出处
《山西农业科学》
2019年第4期573-576,共4页
Journal of Shanxi Agricultural Sciences
基金
广西科技计划项目(桂科AB18221058)
广西科技基地与人才专项(桂科2018AD19032)
关键词
澳洲茶树
淹水胁迫
内源激素
Melaleuca alternifolia
flooding stress
endogenous hormones
