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Comparative Proteomic and Metabonomic Profiling of Buds with Different Flowering Capabilities Reveal Novel Regulatory Mechanisms of Flowering in Apple

文献类型： 外文期刊

作者： Wang, Shujin 1 ; Chen, Xiaoping 1 ; Liu, Sitong 1 ; Zhang, Xiaochen 1 ; Li, Yu 1 ; Shang, Wei 1 ; Song, Jiahui 1 ; Tian, Jianwen 2 ; Li, Xiaolong 2 ; Xing, Libo 1 ;

作者机构： 1.Northwest A&F Univ, Coll Hort, Xianyang 712100, Peoples R China

2.Ningxia Acad Agr & Forestry Sci, Inst Hort, Yinchuan 750002, Peoples R China

关键词： apple; flowering; proteomic; metabolomic; carbohydrate; amino acid; organic acids

期刊名称：PLANTS-BASEL （ 影响因子：4.5； 五年影响因子：4.8 ）

ISSN：

年卷期： 2023 年 12 卷 23 期

页码：

收录情况： SCI

摘要： Flower bud formation in the apple tree life cycle is associated with multiple biological processes. To explore the physiological and molecular mechanisms underlying the protein and metabolite changes in buds with different flowering capabilities, axillary buds with no flowering (Ab), long-shoot buds with a low flowering rate (Lb), and spur buds with a higher flowering rate than the Lb (Sb) were analyzed using a Tandem Mass Tag (TM) proteomic technique in combination with nLC-MS/MS analyses. We identified 471 (88 up- and 383 down-regulated), 459 (176 up- and 283 down-regulated), and 548 (387 up- and 161 down-regulated) differentially expressed proteins in Sb vs. Lb, Sb vs. Ab, and Lb vs. Ab, respectively, that were involved in carbohydrate, amino acid and lipid transport, and metabolism. Additionally, 110 (91 increased and 19 decreased), 89 (71 increased and 18 decreased), and 99 (37 increased and 62 decreased) metabolites having significantly different levels were identified in Sb vs. Lb, Sb vs. Ab, and Lb vs. Ab, respectively. The identified metabolites were related to amino acids and their isoforms, sugars and polyols, and organic acids, and occurred at significantly greater levels in the Sbs than the other buds. Thus, flower bud formation is a complex process that involves various biochemical materials and signals, such as carbohydrates, amino acids and their isoforms, and organic acids.

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