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PHR介导的Pi饥饿反应移动信使RNAs代表受体组织中的非编码转录

Weiguo Dong¹, Shuman Wang¹, Chao Liu²

¹State Key Laboratory of Plant Environmental Resilience, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang, 310058, China.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)

|November 30, 2025

概括

酸盐饥饿会触发特定的移动信使RNAs (mRNAs) 在植物中的运输. 这些酸盐饥饿反应 (PSR) 特定的mRNA在供体组织中被翻译,而不是受体组织中,这表明非蛋白质功能.

科学领域:

植物分子生物学植物分子生物学
营养信号传递营养信号传递
基因表达调节基因表达调节

背景情况:

营养素缺乏,特别是 (Pi) 或,诱导长距离mRNA传输.
这些移动营养饥饿特异性mRNAs的调节,功能和结构特征在很大程度上仍未被描述.

研究的目的:

在正常和Pi-starvation条件下调查Arabidopsis中长距离mRNA传输的景观.
为了识别和描述Pi饥饿反应 (PSR) 特定的移动mRNAs.

主要方法:

采用了Arabidopsis异种植和高通量测序.
进行了突变分析,转原体分析和转基因实验.
进行了mRNA 5'未翻译区域 (UTR) 的结构分析.

主要成果:

数以百计的PSR特定的移动mRNA被确定,在正常和Pi饥饿条件下,它们的丰度是恒定的.
这些PSR特异性移动mRNA的移动性取决于酸盐阻断反应 (PHR) 的功能.
这些移动mRNA在供体组织中进行翻译,而不是受体组织,并且与非移动或饥饿响应的mRNA相比,具有更展开的5' UTR.

结论:

特定于PSR的移动mRNA被运送到受体组织,以执行独立于它们编码的蛋白质的功能.
PHR通路在这些PSR特定的移动mRNA的移动性中起着至关重要的作用.
结构特征,如展开的5' UTRs,可能有助于这些移动mRNAs的运输和功能.

关键词:

人权保护委员会 (PHR)结构 RNA 结构 RNA 结构长途运输mRNA的长途运输没有编码的成绩单.酸盐饥饿反应的反应

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