Solanum tuberosum Translationally Controlled Tumor Protein (StTCTP) mRNA的远距离运输。
Long-Distance Movement of Solanum tuberosum Translationally Controlled Tumor Protein (StTCTP) mRNA.
发表日期:2023 Aug 01
作者:
Brenda Beatriz Xoconostle-Morán, Beatriz Xoconostle-Cázares, Brenda Yazmín Vargas-Hernández, Leandro Alberto Núñez-Muñoz, Berenice Calderón-Pérez, Roberto Ruiz-Medrano
来源:
Cell Death & Disease
摘要:
植物中的远距离信号分子,包括不同种类的RNA,在发育和环境响应中起着至关重要的作用。在这些可移动信号中,调控翻译受控肿瘤蛋白(TCTP)mRNA是其中最丰富的之一。TCTP调节细胞周期进程和程序性细胞死亡,并参与非生物性和生物性胁迫响应以及植物再生等其他功能。考虑到诱导植物再生能力与TCTP在有性繁殖和无性繁殖中的潜在作用相关联,我们分析了对可通过从匍匐茎和块茎再生的茄科植物模型中过表达TCTP的影响。因此,在本研究中,描述了暂时表达马铃薯(Solanum tuberosum)TCTP(StTCTP)对块茎发育和无性繁殖的影响。结果显示StTCTP mRNA可以远距离运输。此外,StTCTP的暂时过表达导致萌芽的直径较对照植物更大。此外,与只观察到成熟块茎的对照植物相比,诱导了块茎的早期阶段。这些结果提示了TCTP在无性繁殖和无性生殖中的作用。
Long-distance signaling molecules in plants, including different RNA species, play a crucial role in the development and environmental responses. Among these mobile signals, the Translationally Controlled Tumor Protein (TCTP) mRNA is one of the most abundant. TCTP regulates cell-cycle progression and programmed cell death and is involved in responses to abiotic and biotic stress as well as plant regeneration, among other functions. Considering that the ability to induce plant regeneration is linked to a possible role of TCTP in vegetative propagation and asexual reproduction, we analyzed TCTP overexpression in a solanaceous plant model that can reproduce asexually by regeneration from stolons and tubers. Therefore, in this study, the effect of transient expression of Solanum tuberosum TCTP (StTCTP) on tuber development and vegetative propagation was described. StTCTP mRNA was shown to be transported long-distance. Additionally, transient overexpression of StTCTP resulted in sprouts with a greater diameter compared to control plants. Furthermore, the early stages of tuberization were induced compared to control plants, in which only mature tubers were observed. These results suggest a role of TCTP in vegetative propagation and asexual reproduction.