The interaction of CpEBF1 with CpMADSs is involved in cell wall degradation during papaya fruit ripening

Autor: Xiaochun Ding, Xiaoyang Zhu, Lanlan Ye, Shuangling Xiao, Zhenxian Wu, Weixin Chen, Xueping Li
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Horticulture Research, Vol 6, Iss 1, Pp 1-18 (2019)
Druh dokumentu: article
ISSN: 2052-7276
DOI: 10.1038/s41438-018-0095-1
Popis: Papaya: Anti-ripening treatment prevents degradation of cell wall Long-term treatment with an anti-ripening agent inhibits the expression of regulatory genes that normally break down the cell wall of the papaya fruit. A team from Guangzhou’s South China Agricultural University led by Xueping Li and Weixin Chen applied a hormone inhibitor to papayas at the breaker stage of fruit ripening. 1 h of treatment delayed ripening, whereas 16 h of treatment caused the fruit to become rubbery, with significantly higher levels of cellulose and lignin, both structural components of the cell wall. The researchers identified two genes with reduced expression following extended hormone-blocking treatment. Both normally encode proteins that aid in degrading the cell wall to promote fruit ripening. The findings thus offer a molecular explanation for why misuse of anti-ripening agents on papaya fruits can lead to undesirable characteristics.
Databáze: Directory of Open Access Journals