Fernández Aurora Piñas, Strand Asa
Umeå Plant Science Centre, Department of Plant Physiology, Umeå University, S-901 87 Umeå, Sweden.
Curr Opin Plant Biol. 2008 Oct;11(5):509-13. doi: 10.1016/j.pbi.2008.06.002. Epub 2008 Jul 17.
Retrograde signaling coordinates the expression of nuclear genes encoding organellar proteins with the metabolic and developmental state of the organelle. These plastid signals are essential not only for coordinating photosynthetic gene expression in both the nucleus and in the chloroplasts but also for mediating plant stress responses. The chloroplasts therefore act as sensors of environmental changes and complex networks of plastid signals coordinate cellular activities and assist the cell during plant stress responses. Recent work suggests that information from both cytosolic-signaling and plastid-signaling networks must be integrated for the plant cell to respond optimally to environmental stress.
逆行信号传导将编码细胞器蛋白的核基因表达与细胞器的代谢和发育状态协调起来。这些质体信号不仅对于协调细胞核和叶绿体中的光合基因表达至关重要，而且对于介导植物应激反应也必不可少。因此，叶绿体充当环境变化的传感器，质体信号的复杂网络协调细胞活动，并在植物应激反应期间协助细胞。最近的研究表明，为了使植物细胞对环境胁迫做出最佳反应，必须整合来自胞质信号传导和质体信号传导网络的信息。
