期刊
TRENDS IN PLANT SCIENCE
卷 27, 期 5, 页码 488-501出版社
CELL PRESS
DOI: 10.1016/j.tplants.2021.11.007
关键词
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资金
- French Atomic Energy and Alternative Energy Commission (CEA)
- CEA (LD-power, CO2Storage)
- Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) [267205415 - CRC 1208, EXC-2048/1, 390686111]
This review discusses the functions of malate shuttles in various biological processes and emphasizes recent research findings and the similarities and differences in different organisms, providing an evolutionary perspective on redox trafficking in photosynthetic eukaryotes.
Subcellular compartmentalization confers evolutionary advantage to eukaryotic cells but entails the need for efficient interorganelle communication. Malate functions as redox carrier and metabolic intermediate. It can be shuttled across membranes through translocators. The interconversion of malate and oxaloacetate mediated by malate dehydrogenases requires oxidation/reduction of NAD (P)H/NAD(P)(+); therefore, malate trafficking serves to transport reducing equivalents and this is termed the 'malate shuttle'. Although the term 'malate shuttle' was coined more than 50 years ago, novel functions are still emerging. This review highlights recent findings on the functions of malate shuttles in photorespiration, fatty acid beta-oxidation, interorganelle signaling and its putative role in CO2-concentrating mechanisms. We compare and contrast knowledge in plants and algae, thereby providing an evolutionary perspective on redox trafficking in photosynthetic eukaryotes.
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