D'Alessandro Stefano
Dipartimento Scienze della Vita e Biologia dei Sistemi, Università degli Studi di Torino, 10135 Torino, Italy.
CNRS, CEA, BIAM UMR7265, Aix Marseille University, F-13009 Marseille, France.
Plants (Basel). 2022 Mar 17;11(6):803. doi: 10.3390/plants11060803.
Photosynthesis is the defining function of most autotrophic organisms. In the plantae kingdom, chloroplasts host this function and ensure growth. However, these organelles are very sensitive to stressful conditions and the photosynthetic process can cause photooxidative damage if not perfectly regulated. In addition, their function is energivorous in terms of both chemical energy and nutrients. To coordinate chloroplast activity with the cell's need, continuous signaling is required: from chloroplasts to cytoplasm and from nucleus to chloroplasts. In this opinion article, several mechanisms that ensure this communication are reported and the many clues that point to an important role of the Target of Rapamycin (TOR) kinase in the coordination between the eukaryotic and prokaryotic sides of plants are highlighted.
光合作用是大多数自养生物的标志性功能。在植物界，叶绿体执行这一功能并确保植物生长。然而，这些细胞器对压力条件非常敏感，如果光合过程没有得到完美调控，可能会导致光氧化损伤。此外，就化学能和营养物质而言，它们的功能消耗能量。为了使叶绿体的活动与细胞需求相协调，需要持续的信号传递：从叶绿体到细胞质，以及从细胞核到叶绿体。在这篇观点文章中，报道了几种确保这种通讯的机制，并强调了许多线索，这些线索表明雷帕霉素靶蛋白（TOR）激酶在植物真核和原核部分之间的协调中起着重要作用。
