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- W3094996687 abstract "SUMMARY Chloroplast‐to‐nucleus retrograde signaling is essential for cell function, acclimation to fluctuating environmental conditions, plant growth and development. The vast majority of chloroplast proteins are nuclear‐encoded, and must be imported into the organelle after synthesis in the cytoplasm. This import is essential for the development of fully functional chloroplasts. On the other hand, functional chloroplasts act as sensors of environmental changes and can trigger acclimatory responses that influence nuclear gene expression. Signaling via mobile transcription factors (TFs) has been recently recognized as a way of communication between organelles and the nucleus. In this study, we performed a targeted reverse genetic screen to identify dual‐localized TFs involved in chloroplast retrograde signaling during stress responses. We found that CHLOROPLAST IMPORT APPARATUS 2 (CIA2) has a functional plastid transit peptide, and can be located both in chloroplasts and the nucleus. Further, we found that CIA2, along with its homolog CIA2‐like (CIL) are involved in the regulation of Arabidopsis responses to UV‐AB, high light and heat shock. Finally, our results suggest that both CIA2 and CIL are crucial for chloroplast translation. Our results contribute to a deeper understanding of signaling events in the chloroplast‐nucleus cross‐talk." @default.
- W3094996687 created "2020-11-09" @default.
- W3094996687 creator A5017111180 @default.
- W3094996687 creator A5020587148 @default.
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- W3094996687 creator A5065848937 @default.
- W3094996687 creator A5087762478 @default.
- W3094996687 date "2020-11-27" @default.
- W3094996687 modified "2023-10-16" @default.
- W3094996687 title "CIA2 and CIA2‐LIKE are required for optimal photosynthesis and stress responses in <i>Arabidopsis thaliana</i>" @default.
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