Figure 10. A schematic presentation of retrograde signaling in plant cells.
Environmental factors in this study are the chloroplast development inhibitors LIN and NF which act in the chloroplast (shown by the yellow arrows) and generate photooxidative damage under high light. The signal generated by the chloroplast is transduced to the nucleus (shown by a red line) causing the necessary changes in NGE (plastid retrograde signaling). The transcriptome analysis shows that the expression of chloroplast and mitochondrial retrograde signaling-related genes is affected in AT5G08670 seedlings treated with LIN and associated with the repression of some TFs, such as ETT, PTF1, TCP2 , andKTF1 .