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Review
. 2024 Feb;30(2):167-183.
doi: 10.1007/s12298-024-01427-8. Epub 2024 Mar 11.

Regulation of chloroplast biogenesis, development, and signaling by endogenous and exogenous cues

Kalyan Mahapatra #  1 , Arpan Mukherjee #  1 , Shikha Suyal #  1 , Mansoor Ali Dar #  1 , Lavanya Bhagavatula  2 , Sourav Datta  1
Affiliations
Review

Regulation of chloroplast biogenesis, development, and signaling by endogenous and exogenous cues

Kalyan Mahapatra et al. Physiol Mol Biol Plants. 2024 Feb.

Abstract

Chloroplasts are one of the defining features in most plants, primarily known for their unique property to carry out photosynthesis. Besides this, chloroplasts are also associated with hormone and metabolite productions. For this, biogenesis and development of chloroplast are required to be synchronized with the seedling growth to corroborate the maximum rate of photosynthesis following the emergence of seedlings. Chloroplast biogenesis and development are dependent on the signaling to and from the chloroplast, which are in turn regulated by several endogenous and exogenous cues. Light and hormones play a crucial role in chloroplast maturation and development. Chloroplast signaling involves a coordinated two-way connection between the chloroplast and nucleus, termed retrograde and anterograde signaling, respectively. Anterograde and retrograde signaling are involved in regulation at the transcriptional level and downstream modifications and are modulated by several metabolic and external cues. The communication between chloroplast and nucleus is essential for plants to develop strategies to cope with various stresses including high light or high heat. In this review, we have summarized several aspects of chloroplast development and its regulation through the interplay of various external and internal factors. We have also discussed the involvement of chloroplasts as sensors of various external environment stress factors including high light and temperature, and communicate via a series of retrograde signals to the nucleus, thus playing an essential role in plants' abiotic stress response.

Keywords: Anterograde and retrograde signaling; Chloroplasts; Hormones; Light; Plastid biogenesis; ROS.

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Conflict of interest statement

Conflict of interestThe Author declares no conflict of interest.

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