文献类型： 外文期刊

第一作者： Chen Zhu

作者： Chen Zhu;Gao Junlan;Xuan Yun;Ren Jie;Lu Xiaoyu

作者机构： Anhui Acad Agr Sci, Inst Agr Engn, 40 Nongkenanlu, Hefei 230031, Anhui, Peoples R China;Anhui Agr Univ, Coll Forestry & Landscape Architecture, 130 Changjiangxilu, Hefei 230036, Anhui, Peoples R China

关键词： Acer rubrum; Transcriptome; Metabolomics; Hormone pathways; Leaf senescence

期刊名称：BMC PLANT BIOLOGY （ 2020影响因子：4.215； 五年影响因子：4.96 ）

ISSN： 1471-2229

年卷期： 2020 年 20 卷 1 期

页码：

收录情况： SCI

摘要： BackgroundTo fully elucidate the roles and mechanisms of plant hormones in leaf senescence, we adopted an integrated analysis of both non-senescing and senescing leaves from red maple with transcriptome and metabolome data.ResultsTranscription and metabolite profiles were generated through a combination of deep sequencing, third-generation sequencing data analysis, and ultrahigh-performance liquid chromatograph Q extractive mass spectrometry (UHPLC-QE-MS), respectively. We investigated the accumulation of compounds and the expression of biosynthesis and signaling genes for eight hormones. The results revealed that ethylene and abscisic acid concentrations increased during the leaf senescence process, while the contents of cytokinin, auxin, jasmonic acid, and salicylic acid continued to decrease. Correlation tests between the hormone content and transcriptional changes were analyzed, and in six pathways, genes closely linked with leaf senescence were identified.ConclusionsThese results will enrich our understanding of the mechanisms of plant hormones that regulate leaf senescence in red maple, while establishing a foundation for the genetic modification of Acer in the future.

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