Biosynthesis and beneficial effects of microbial gibberellins on crops for sustainable agriculture

• Published in: Journal of applied microbiology Vol. 132; no. 3; pp. 1597 - 1615
• Main Authors: Keswani, Chetan, Singh, Satyendra P., García‐Estrada, Carlos, Mezaache‐Aichour, Samia, Glare, Travis R., Borriss, Rainer, Rajput, Vishnu D., Minkina, Tatiana M., Ortiz, Aurelio, Sansinenea, Estibaliz
• Format: Journal Article
• Language: English
• Published: England Oxford University Press 01.03.2022
• Subjects: Abscisic acid; Agricultural practices; Agriculture; Auxins; Biosynthesis; Chemical compounds; crop production; Crops, Agricultural - metabolism; Cytokinins; Cytokinins - metabolism; ethylene; Fungi; Fusarium fujikuroi; Gene regulation; Gibberellins; Gibberellins - metabolism; growth and development; Growth hormones; microbial hormones; Microorganisms; Plant growth; Plant Growth Regulators - metabolism; plant growth‐promoting rhizomicro‐organisms; plant health; Plant hormones; secretion; soil; Soil microorganisms; Soils; Sustainable agriculture; crop production; gibberellins; microbial hormones; sustainable agriculture; plant growth-promoting rhizomicro-organisms
• ISSN: 1364-5072; 1365-2672; 1365-2672
• DOI: 10.1111/jam.15348

Soil microbes promote plant growth through several mechanisms such as secretion of chemical compounds including plant growth hormones. Among the phytohormones, auxins, ethylene, cytokinins, abscisic acid and gibberellins are the best understood compounds. Gibberellins were first isolated in 1935 from the fungus Gibberella fujikuroi and are synthesized by several soil microbes. The effect of gibberellins on plant growth and development has been studied, as has the biosynthesis pathways, enzymes, genes and their regulation. This review revisits the history of gibberellin research highlighting microbial gibberellins and their effects on plant health with an emphasis on the early discoveries and current advances that can find vital applications in agricultural practices.