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TEOSINTE BRANCHED1/CYCLOIDEA/PCF蛋白PeTCP4s通过激活PePIN2a表达在Phyllostachys edulis中来积极调节侧向芽的发展

Xin Chang¹, Jiaoyu Chen¹, Yujiao Liu¹

¹State Key Laboratory of Subtropical Silviculture, Bamboo Industry Institute, Zhejiang A&F University, Hangzhou 311300, Zhejiang, China.

International journal of biological macromolecules

|February 19, 2025

概括

细胞因素治疗通过刺激横向芽生长来促进竹子发芽的产量. 这涉及特定的TEOSINTE BRANCHED1/CYCLOIDEA/PCF (TCP) 基因,激活辅酶运输和横向器官发育.

科学领域:

植物生物学植物生物学
分子遗传学分子遗传学
农业科学农业科学

背景情况:

竹根茎的侧叶芽发育对于芽生长的产量至关重要,但人们对其了解甚少.
识别调节这一过程的分子机制对于改善竹种植至关重要.

研究的目的:

为了研究细胞因素在Moso竹子侧叶芽生长中的作用.
为了识别和描述参与细胞因素介导侧叶芽发育的关键基因.

主要方法:

用细胞因素治疗莫索竹的方法.
对TEOSINTE分支1/CYCLOIDEA/PCF (TCP) 基因 (PeTCP4a,PeTCP4b) 的识别和表达分析.
基因过度表达的研究和下游基因表达的分析 (例如,PePIN2a,KNAT2,KNAT6,STM,IAA3).
蛋白质-DNA结合测试以确认直接相互作用.

主要成果:

细胞因素显著增强了Moso竹的横向芽生长.
确定了两个TCP基因,PeTCP4a和PeTCP4b,其表达由细胞因素调高,与芽发育相关.
过度表达的PeTCP4基因导致增加侧向分支和上调的辅酶外流载体 (PePIN2a) 和侧向器官发育基因.
发现PeTCP4蛋白直接结合并激活PePIN2a基因促进体.

结论:

细胞因素诱导的 PeTCP4 基因促进了 Moso 竹的横向芽生长.
这种促进通过激活PePIN2a的表达和随后的侧向器官发育基因的上调发生.
这些发现为竹子侧叶芽发育的分子调节提供了新的见解.

关键词:

侧面的芽是侧面的莫索竹的竹子可以使用.这就是TCPTCPTCP.

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