水稻中乙烯生物合成关键酶OsACS和OsACO调控机制研究进展

doi:10.11983/CBB23143

摘要/Abstract

摘要： 乙烯在调控水稻(Oryza sativa)的生长发育及胁迫响应中具有重要作用。乙烯生物合成第一步由甲硫氨酸转化为SAM, 随后在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两个关键酶OsACS和OsACO在转录水平及翻译后水平的调控机制, 还提出一些尚未解决的问题, 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。

关键词: 乙烯, 生物合成, ACS, ACO, 调控机制, 水稻

Abstract: Ethylene plays a pivotal role in regulating the growth, development and stress responses of rice (<i>Oryza sativa</i>). The first step of ethylene biosynthesis is the conversion of methionine to SAM, followed by the synthesis of ethylene precursor ACC under the catalysis of ACC synthase, and finally converted to ethylene by ACC oxidase. In this review, we provid an overview of the lastest research progress, specially focusing on the transcriptional and post-translational regulatory mechanism of two key enzymes, OsACS and OsACO, involved in the rice ethylene biosynthesis pathway. Finally, we present several unsolved questions and insights into future research directions to enhance our understanding of the complex mechanism of ethylene biosynthesis. 

Key words: ethylene, biosynthesis, 1-aminocyclopropane-1-carboxylate synthase (ACS), 1-aminocyclopropane-1-carboxylate oxidase (ACO), regulatory mechanism, Oryza sativa

夏婧, 饶玉春, 曹丹芸, 王逸, 柳林昕, 徐雅婷, 牟望舒, 薛大伟. 水稻中乙烯生物合成关键酶OsACS和OsACO调控机制研究进展. 植物学报, 2024, 59(2): 291-301.

Jing Xia, Yuchun Rao, Danyun Cao, Yi Wang, Linxin Liu, Yating Xu, Wangshu Mou, Dawei Xue. Research Progress on Regulatory Mechanisms of OsACS and OsACO in Rice Ethylene Biosynthesis. Chinese Bulletin of Botany, 2024, 59(2): 291-301.

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https://www.chinbullbotany.com/CN/Y2024/V59/I2/291

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