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Editorial: Phytohormones as crucial players in organ abscission
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Editorial: Phytohormones as crucial players in organ abscission
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Journal Article
Editorial: Phytohormones as crucial players in organ abscission
2025
Overview
Among the key regulators, the transcription factors NAC DOMAIN CONTAINING PROTEIN 100 (NAC100) and ETHYLENE RESPONSE FACTOR114 (ERF114) emerged as central orchestrators of the hormonal and transcriptional cascades triggering abscission, presenting promising molecular targets for biotechnological or agronomic strategies to reduce premature fruit loss. Complementing these original experimental studies, two reviews offer expansive conceptual frameworks that bridge core molecular insights with practical applications.Tipu and Sherifemphasize ET’s role as a central hormonal maestro in climacteric fruit ripening, coordinating physiological and biochemical ripening hallmarks - such as color development, softening, sugar metabolism, and aroma production - and interconnecting with auxin, ABA, GA, JA, brassinosteroid (BR), and salicylic acid (SA) pathways to shape complex ripening phenotypes and abscission dynamics. The review further explores multilayered hormonal crosstalk within the AZ and the fruit, spotlighting MADS-box transcription factors that form regulatory complexes linking AZ development with ET biosynthesis and ripening pathways.
