Physiological and Transcriptomic Analysis of Citrus Fruit Segment Drying under Facility-Forcing Cultivation

文献类型： 外文期刊

第一作者： Jin, Longfei

作者： Jin, Longfei;Wen, Mingxia;Liu, Feng;Huang, Bei;Wang, Peng

作者机构：

关键词： citrus; segment drying; sugar and acid; cell wall metabolism; phytohormone

期刊名称：HORTICULTURAE （ 影响因子：3.0； 五年影响因子：3.2 ）

ISSN：

年卷期： 2024 年 10 卷 8 期

页码：

收录情况： SCI

摘要： Facility-forcing cultivation could effectively improve the quality of 'Beni Madonna' citrus (Citrus nankao x C. amakusa) and advance the ripening period. However, segment drying (KS) before harvest caused fruit quality deterioration and commodity value loss. In this research, we investigated the physiological and molecular characteristics involved in citrus segment drying under facility-forcing cultivation. The juice yield, sugar, acid, vitamin C, and lignin contents in KS fruits were significantly decreased, and the contents of pectin and cellulose were significantly increased. The relative contents of abscisic acid and abscisic acid glucosyl ester in KS fruits were significantly decreased. A total of 1215 differentially expressed genes (DEGs) were screened by transcriptome sequencing. DEGs were significantly enriched in water metabolism, sugar metabolism, transportation, cell wall and phenylpropanoid biosynthesis, and plant hormone signal transduction. The decrease in water absorption and sugar synthesis, the increase of pectin and cellulose synthesis, and the decrease in ABA accumulation may be the main reasons that cause citrus fruit segments to dry under facility-forcing cultivation.

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