Chinese Bulletin of Botany ›› 2024, Vol. 59 ›› Issue (2): 291-301.DOI: 10.11983/CBB23143

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

Jing Xia1+, Yuchun Rao2+, Danyun Cao1, Yi Wang1, Linxin Liu1, Yating Xu1, Wangshu Mou1*, Dawei Xue1*   

  1. 1College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China; 2College of Life Sciences, Zhejiang Normal University, Jinhua 321004, China
  • Received:2023-10-29 Revised:2023-12-28 Online:2024-03-01 Published:2024-01-30
  • Contact: Dawei Xue

Abstract: Ethylene plays a pivotal role in regulating the growth, development and stress responses of rice (<i>Oryza sativa</i>).&nbsp;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.&nbsp;

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