Gibberellin Metabolism in Flowering Plants: An Update and Perspectives

In plants, gibberellins (GAs) play important roles in regulating growth and development. Early studies revealed the large chemodiversity of gibberellins in plants, but only GA(1), GA(3), GA(4), and GA(7) show biological activity that controls plant development. However, the elucidation of the GA met...

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Detalles Bibliográficos
Autores principales: He, Juan, Xin, Peiyong, Ma, Xueting, Chu, Jinfang, Wang, Guodong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2020
Materias:
Plant Science
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7248407/
https://www.ncbi.nlm.nih.gov/pubmed/32508855
http://dx.doi.org/10.3389/fpls.2020.00532
Descripción
Sumario:In plants, gibberellins (GAs) play important roles in regulating growth and development. Early studies revealed the large chemodiversity of gibberellins in plants, but only GA(1), GA(3), GA(4), and GA(7) 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 GA(12) 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.

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