Gibberellin Metabolism in Flowering Plants: An Update and Perspectives
Gibberellin Metabolism in Flowering Plants: An Update and Perspectives
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开花植物中的赤霉素代谢：最新进展和展望
DOI：
10.3389/fpls.2020.00532
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发表时间：
2020-05-19
影响因子：
5.6
通讯作者：
Wang, Guodong
中科院分区：
文献类型：
--
作者：
He, Juan;Xin, Peiyong;Wang, Guodong
在植物中，赤霉素(GAs)在调节生长发育方面发挥着重要作用。早期的研究表明，赤霉素在植物中具有很大的化学多样性，但只有GA_1、GA_3、GA_4和GA_7显示出控制植物发育的生物活性。然而，在分子水平上对GA代谢网络的阐明远远落后于气体的化学发现。GA下游生物合成(在GA12形成后)的最新进展表明，在开花植物进化过程中获得了物种特异性的赤霉素修饰。本文综述了开花植物中GA代谢的研究现状以及GA失活的生理功能，重点介绍了GA 13的羟化作用。并对GA合成生物学在植物发育中的潜在应用进行了讨论。
In plants, gibberellins (GAs) play important roles in regulating growth and development. Early studies revealed the large chemodiversity of gibberellins in plants, but only GA1, GA3, GA4, and GA7 show biological activity that controls plant development. However, the elucidation of the GA metabolic network at the molecular level has lagged far behind the chemical discovery of GAs. Recent advances in downstream GA biosynthesis (after GA12 formation) suggest that species-specific gibberellin modifications were acquired during flowering plant evolution. Here, we summarize the current knowledge of GA metabolism in flowering plants and the physiological functions of GA deactivation, with a focus on GA 13 hydroxylation. The potential applications of GA synthetic biology for plant development are also discussed.