Comparison of Anthocyanin Accumulation of Red Chinese Sand Pears (Pyrus pyrifolia Nakai) Grown at Two Locations

文献类型： 外文期刊

第一作者： Teng, Yuanwen

作者： Teng, Yuanwen;Zhang, Dong;Yu, Bo;Qian, Minjie;Wang, Suke;Li, Xiugen;Su, Jun;Shu, Qun

作者机构：

关键词： Pyrus pyrifolia;ecological factors;colour parameters;gene expression

期刊名称：XII INTERNATIONAL PEAR SYMPOSIUM

ISSN：

年卷期：

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收录情况： SCI

摘要： We compared the fruit of red Chinese sand pears (Pyrus pyrifolia Nakai 'Mantianhong') grown at two sites with different environmental conditions, evaluating colour development, and expressions of anthocyanin-related genes during the colour formation phase in two successive years. The Anning site had a warm climate with a large daily temperature range and high irradiance. These conditions resulted in better colouration of red Chinese sand pears compared with those grown in Xingyang, which had a hot climate with a small daily temperature range and low irradiance. At harvest, the skin of pears grown in Anning contained higher concentrations of anthocyanins, and lower concentrations of chlorophyll than fruit from Xingyang. The higher anthocyanin contentin fruit grown in Anning may be because the environmental conditions, particularly light and temperature, induced anthocyanin biosynthesis more effectively. The expressions of anthocyanin structural and regulatory genes, especially PpCHS, PpANS, PpUFGT,PyMYBlO and PpbHLH were higher in fruit grown in Anning than in that from Xingyang. These results increase our understanding of the regulation of red colouration in red Chinese sand pear fruits, and are useful for identifying optimum growing areas.

分类号： S6

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