衰老
拟南芥
乙烯
成熟
生物
拟南芥
生长素
植物
突变体
细胞生物学
生物化学
基因
催化作用
作者
Zhonghai Li,Hongwei Guo
出处
期刊:Methods in molecular biology
日期:2018-01-01
卷期号:: 105-112
被引量:10
标识
DOI:10.1007/978-1-4939-7672-0_8
摘要
Plant leaf senescence is the final process of leaf development that involves the mobilization of nutrients from old leaves to newly growing tissues. Leaf senescence involves a coordinated action at the cellular and organism levels under the control of a highly regulated genetic program. However, leaf senescence is also influenced by multiple internal and environmental signals that are integrated into the age information. Among these internal factors, the simple gaseous phytohormone ethylene is well-known to be an important endogenous modulator of plant leaf senescence and fruit ripening. Ethylene and its biosynthetic precursor ACC (1-aminocyclopropane-l-carboxylic acid) as well as inhibitors of ethylene biosynthesis aminoethoxyvinylglycine (AVG) and action (AgNO3) or the inhibitor of ethylene perception 1-MCP (1-methylcyclopropene) have been widely used by the research community of plant leaf senescence. However, until now, no systemically experimental method about the usage of ethylene in studying the molecular mechanisms of leaf senescence in Arabidopsis is available. Here, we provide detailed methods for exogenous application of ethylene and its inhibitors in studying Arabidopsis leaf senescence, which has been successfully used in our laboratory.
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