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Host-endosymbiont co-evolution shaped chloroplast translational regulation
Botany Letters ( IF 1.5 ) Pub Date : 2019-07-24 , DOI: 10.1080/23818107.2019.1623716
Francesca De Marchis 1 , Andrea Pompa 1 , Matteo Ballottari 2 , Michele Bellucci 1
Affiliation  

The interaction between organisms and their environment generates evolutionary forces able to modify a living species. The process of gene expression, from the transcription of information encoded in a gene to the synthesis of a functional polypeptide, largely relies on evolution, which plays a significant role in determining the factors that control and regulate gene expression. Nowadays, chloroplasts are the result of a complex evolutionary history, elicited by the intracellular cohabitation of an ancient photosynthetic cyanobacterium inside a mitochondriate eukaryotic cell. In this paper, we try to describe the recent investigations on mechanisms that regulate chloroplast translation, both in Chlamydomonas reinhardtii and in land plants. After a general description of plastid translational machinery, ribosome structure with related proteins and nuclear-encoded proteins regulating plastid translation in these organisms, we focus on specific examples of chloroplast translation regulation in the green lineage. In the end, we provide a comparison between plastid translation regulation in green algae and land plants, showing that in both cases chloroplast gene expression is prevalently regulated at post-transcriptional and translational level, although with different strategies.



中文翻译:

宿主-共生共进化形叶绿体翻译调控

生物体与其环境之间的相互作用产生了能够改变生物物种的进化力。基因表达的过程,从基因编码信息的转录到功能多肽的合成,很大程度上取决于进化,而进化在确定控制和调节基因表达的因素中起着重要作用。如今,叶绿体是复杂的进化史的结果,是由线粒体真核细胞内部古老的光合蓝细菌在细胞内共存引起的。在本文中,我们试图描述对莱茵衣藻中调节叶绿体翻译的机制的最新研究。和陆地植物。在对质体翻译机制,具有相关蛋白的核糖体结构以及调节这些生物体中质体翻译的核编码蛋白进行了总体描述之后,我们将重点介绍绿色谱系中叶绿体翻译调控的具体实例。最后,我们提供了绿藻和陆地植物质体翻译调控之间的比较,表明在两种情况下,叶绿体基因表达都在转录后和翻译水平上受到普遍调控,尽管策略不同。

更新日期:2019-07-24
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