Effects of Shading by Bagging on Carotenoid Accumulation in Peach Fruit Flesh

文献类型： 外文期刊

第一作者： Zhu, Mingtao

作者： Zhu, Mingtao;Fang, Weichao;Chen, Changwen;Wang, Lirong;Cao, Ke;Zhu, Mingtao

作者机构：

关键词： Shading by bagging; Carotenoid; Fruit quality; Yellow-fleshed peach; Total phenolics

期刊名称：JOURNAL OF PLANT GROWTH REGULATION （ 影响因子：4.169； 五年影响因子：4.038 ）

ISSN： 0721-7595

年卷期：

页码：

收录情况： SCI

摘要： To clarify the effects of shading by bagging on the carotenoid accumulation in peach fruit flesh, the fruits of two yellow-fleshed peach cultivars (3D-8 and C18) were analyzed after a bagging treatment (yellow-black double-layered bag) at 50 days after full bloom. The bagging treatment significantly decreased the carotenoid content. The reason for this decrease may be that dark conditions due to bagging upregulatesPpPIF3expression. The resulting increase inPpPIF3expression level negatively regulates structural genes (PpPSY2,PpPDS,PpZDS,PpLCYE,PpCYB1,PpHYB,PpHYE) expression. Bagging promoted the increase of zeaxanthin and the decrease of xanthophyll, beta-cryptoxanthin, alpha-carotene, beta-carotene, and finally reduced the content of total carotenoids. However, bagging minimally influenced the expression of genes related to carotenoid cleavage. Additionally, bagging decreased peach fruit quality and the total phenol content, but increased the reactive oxygen species content.

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