Two critical membranes. How does the chloroplast envelope affect plant acclimation properties?

Annalisa John; Isabel Keller; Katharina W Ebel; H Ekkehard Neuhaus

doi:10.1093/jxb/erae436

Two critical membranes. How does the chloroplast envelope affect plant acclimation properties?

J Exp Bot. 2024 Oct 23:erae436. doi: 10.1093/jxb/erae436. Online ahead of print.

Authors

Annalisa John¹, Isabel Keller¹, Katharina W Ebel¹, H Ekkehard Neuhaus¹

Affiliation

¹ University of Kaiserslautern, Plant Physiology, Paul-Ehrlich-Str., 67663 Kaiserslautern, Germany.

PMID: 39441968
DOI: 10.1093/jxb/erae436

Abstract

Chloroplasts play a pivotal role in the metabolism of leaf mesophyll cells, functioning as a cellular hub that orchestrates molecular reactions in response to environmental stimuli. These organelles contain complex protein machinery for energy conversion and are indispensable for essential metabolic pathways. Proteins located within the chloroplast envelope membranes facilitate bidirectional communication with the cell and connect essential pathways, thereby influencing acclimation processes to challenging environmental conditions such as temperature fluctuations and light intensity changes. Despite their importance, a comprehensive overview of the impact of envelope-located proteins during acclimation to environmental changes is lacking. Understanding the role of these proteins in acclimation processes could provide insights into enhancing stress tolerance under increasingly challenging environments. This review highlights the significance of envelope-located proteins in plant acclimation.

Keywords: abiotic stress; chloroplasts; cold temperature; envelope proteins; fatty acid metabolism; high light; ion transport; lipid synthesis; proteases; sugar transport.