Ethylene‐activated MdPUB24 mediates ubiquitination of MdBEL7 to promote chlorophyll degradation in apple fruit

• Published in: The Plant journal : for cell and molecular biology Vol. 108; no. 1; pp. 169 - 182
• Main Authors: Wei, Yun, Jin, Juntong, Xu, Yaxiu, Liu, Weiting, Yang, Guangxin, Bu, Haidong, Li, Tong, Wang, Aide
• Format: Journal Article
• Language: English
• Published: England Blackwell Publishing Ltd 01.10.2021
• Subjects: apple; Apples; Chlorophyll; Chlorophyll - metabolism; Complementation; Environmental degradation; Ethylene; Ethylenes - metabolism; Fruit - genetics; Fruit - physiology; Fruits; Gene expression; Gene Expression Regulation, Plant; Genes; Homeobox; Immunoprecipitation; luciferase; Malus - genetics; Malus - physiology; Malus domestica; MdBEL7; MdPUB24; Plant Growth Regulators - metabolism; Plant hormones; Plant Proteins - genetics; Plant Proteins - metabolism; post‐translational regulation; precipitin tests; Proteasome 26S; proteasome endopeptidase complex; Proteasome Endopeptidase Complex - metabolism; Protein Processing, Post-Translational; Proteolysis; repressor proteins; Ripening; Ubiquitin; Ubiquitin-protein ligase; Ubiquitination; Yeast; yeasts; MdBEL7; apple; ubiquitination; post-translational regulation; chlorophyll; MdPUB24; ethylene

SUMMARY Chlorophyll (Chl) degradation is a natural phenomenon that occurs during ripening in many fleshy fruit species, and also during fruit storage. The plant hormone ethylene is a key factor in promoting Chl degradation during fruit storage, but the mechanisms involved in this induction are large...