An analysis on the accumulation of serotonin indicates the positively correlation between MdT5H5 and serotonin content in apple fruits
文献类型： 外文期刊
作者： Lv, Lingling 1 ; Bi, Lei 1 ; Guo, Chengyu 1 ; Mao, Jiayi 4 ; Duan, Tingting 4 ; Ma, Fengwang 1 ; Feng, Jianwen 3 ; Li, Cuiying 1 ;
作者机构： 1.Northwest A&F Univ, State Key Lab Crop Stress Resistance, Yangling 712100, Shaanxi, Peoples R China
2.Northwest A&F Univ, Coll Hort, High Efficiency Prod Shaanxi Key Lab Apple, Yangling 712100, Shaanxi, Peoples R China
3.Guizhou Acad Agr Sci, Guizhou Inst Fruit Tree, Guiyang 550006, Guizhou, Peoples R China
4.Guizhou Acad Agr Sci, Guizhou Inst Plant Protect, Guiyang 550006, Guizhou, Peoples R China
关键词： Apple; Serotonin; Fruit development; Bagging
期刊名称：SCIENTIA HORTICULTURAE （ 影响因子：3.9； 五年影响因子：4.3 ）
ISSN： 0304-4238
年卷期： 2024 年 331 卷
页码：
收录情况： SCI
摘要： Serotonin (5-hydroxytryptamine, 5-HT), a tryptophan derivative, is an important functional component in fruits. Although 5-HT was found in most fruits, the accumulation characteristics of its biosynthesis in apple fruits remain unclear. Here, we conducted a large-scale survey of 148 apple fruits in 5-HT content, and investigated the biosynthesis differences of 5-HT. Our results displayed a broad skewed normal distribution of 5-HT in apple fruits. 5-HT accumulated in all tissues of apple plants, with the highest content in the seeds and the higher content in the pulp than that of the peel. A significant increase of 5-HT at ripening stage was observed in the fruits with high 5-HT content, however, the 5-HT content did not change significantly during fruit development in the fruits with low 5-HT content. The bagging reduced the 5-HT biosynthesis compared to the fruits exposed to light conditions. In addition, the expression level of MdT5H5 was positively correlated with the 5-HT content, suggesting that MdT5H5 may play a key regulatory role in the 5-HT biosynthesis in apple fruits.
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