Transcriptome analysis revealed the effect of ethylene on grape buds and leaves

乙烯 转录组 植物激素 休眠 生物 光合作用 衰老 更年期 新陈代谢 小桶 赤霉素 叶绿素 植物 类胡萝卜素 代谢途径 拟南芥 细胞生物学 生物化学 发芽 基因 基因表达 遗传学 催化作用 更年期 突变体
作者
Zhen Tao,Zhiyuan Ma,Bo Wang,Jungui Yang,Tariq Pervaiz,Zibo Zhang,Yunzhi Zhou,Yuanxin Cheng,Haifeng Jia
出处
期刊:Journal of Horticultural Science & Biotechnology [Taylor & Francis]
卷期号:: 1-14
标识
DOI:10.1080/14620316.2024.2363265
摘要

Ethylene is one of the important endogenous gaseous plant hormones that regulates various metabolic and developmental processes in plants. In this study, we found that ethylene could promote bud break and improve the antioxidant system in buds, whereas ethylene increased the chlorophyll and carotenoid degradation that led to the leaves senescence. RNA-seq was also used to analyse the grape leaves and buds treated with ethylene. A total of 7457 differentially expressed genes were identified in the two comparison samples. The annotation results showed that differential genes in GO and KEGG were mainly involved in plant hormone biosynthesis, signal transduction, photosynthesis, and secondary metabolism. We developed a possible model for ethylene controlling and senescence of the leaf and the bud dormancy based on the data produced in RNA-seq. It is evident that exogenous ethylene promoted leaf senescence by regulating various hormone signals, particularly ABA, and inhibiting photosynthesis. Compared with leaves, exogenous ethylene tended to promote photosynthesis in buds and secondary metabolism to regulate buds dormancy. This study will be helpful to clarify the possible action mechanism of ethylene regulating the development of leaves and buds.
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