水稻中乙烯生物合成关键酶OsACS和OsACO调控机制研究进展  

Research Progress on the Regulatory Mechanisms of OsACS and OsACO in Rice Ethylene Biosynthesis

作　　者：夏婧 饶玉春[2] 曹丹芸 王逸 柳林昕 徐雅婷 牟望舒 薛大伟[1] Jing Xia;Yuchun Rao;Danyun Cao;Yi Wang;Linxin Liu;Yating Xu;Wangshu Mou;Dawei Xue(College of Life and Environmental Sciences,Hangzhou Normal University,Hangzhou 311121,China;College of Life Sciences,Zhejiang Normal University,Jinhua 321004,China)

机构地区：[1]杭州师范大学生命与环境科学学院,杭州311121 [2]浙江师范大学生命科学学院,金华321004

出　　处：《植物学报》2024年第2期291-301,共11页Chinese Bulletin of Botany

基　　金：国家重点研发计划-政府间国际科技创新合作(No.2022YFE0125600);浙江省自然科学基金探索项目(No.LQ23C020002)。

摘　　要：乙烯在调控水稻(Oryzasativa)生长发育及胁迫响应中具有重要作用。乙烯生物合成的第1步是甲硫氨酸转化为S-腺苷甲硫氨酸(SAM),然后在ACC合酶(ACS)的催化下合成乙烯前体物质ACC,最后通过ACC氧化酶(ACO)生成乙烯。该文综述了水稻乙烯生物合成途径中2个关键酶OsACS和OsACO在转录及翻译后的调控机制,提出了一些未解决的问题,并展望了未来的研究方向,以期加深人们对乙烯生物合成复杂机制的理解。Ethylene plays a pivotal role in regulating the growth,development and stress responses of rice(Oryza sativa).The first step of ethylene biosynthesis is the conversion of methionine to SAM,followed by the synthesis of the ethylene precursor ACC under the catalysis of ACC synthase,which is ultimately converted to ethylene by ACC oxidase.In this review,we provide an overview of the latest research progress,especially focusing on the transcriptional and posttranslational regulatory mechanisms of two key enzymes involved in the rice ethylene biosynthesis pathway,OsACS and OsACO.Finally,we present several unsolved questions and insights into future research directions to enhance our understanding of the complex mechanism of ethylene biosynthesis.

关 键 词：乙烯 生物合成 ACS ACO 调控机制 水稻 

分 类 号：S511[农业科学—作物学]