The secret of high carbon fixation efficiency in Chlamydomonas and its potential to boost yields in land plantsOA
Microalgae are renowned for their exceptional carbon fixation efficiency as photosynthetic organisms.Although they constitute only a small fraction of the total biomass of primary producers,microalgae are responsible for approximately half of the Earth’s daily CO_(2)fixation.This extraordinary capacity is primarily attributed to the enhanced carboxylation activity of RuBisCO,an enzyme that fixes CO_(2)through biophysical CO_(2)-concentrating mechanisms(CCMs).Additionally,microalgae exhibit efficient light capture,robust photoprotective capabilities,and remarkable adaptability and distribution,further contributing to their high carbon fixation efficiency.Understanding the molecular components underlying this efficiency and transferring these traits to higher plants offer a promising approach for boosting crop yields and improving resilience to climate change.This review uses Chlamydomonas reinhardtii as a model to explore the principles and molecular mechanisms of CCMs in microalgae.It also discusses the potential applications and challenges of incorporating these mechanisms into land plants to enhance their photosynthetic performance.
Ruizi Li;Junting Pan;Jiale Xing;Wenqiang Yang
State Key Laboratory of Forage Breeding-by-Design and Utilization and Key Laboratory of photobiology,Institute of Botany,Chinese Academy of Sciences,Beijing 100093,China China National Botanical Garden,Beijing 100093,China University of Chinese Academy of Sciences,Beijing 100049,ChinaState Key Laboratory of Forage Breeding-by-Design and Utilization and Key Laboratory of photobiology,Institute of Botany,Chinese Academy of Sciences,Beijing 100093,China China National Botanical Garden,Beijing 100093,China University of Chinese Academy of Sciences,Beijing 100049,ChinaState Key Laboratory of Forage Breeding-by-Design and Utilization and Key Laboratory of photobiology,Institute of Botany,Chinese Academy of Sciences,Beijing 100093,ChinaState Key Laboratory of Forage Breeding-by-Design and Utilization and Key Laboratory of photobiology,Institute of Botany,Chinese Academy of Sciences,Beijing 100093,China China National Botanical Garden,Beijing 100093,China University of Chinese Academy of Sciences,Beijing 100049,China Academician Workstation of Agricultural High-Tech Industrial Area of the Yellow River Delta,National Center of Technology Innovation for Comprehensive Utilization of Saline-Alkali Land,Dongying 257300,China
农业科技
Carbon fixationCO_(2)-concentrating mechanismsCrop yieldMicroalgae
《Green Carbon》 2026 (1)
P.63-73,11
support from National center of Technology Innovation for Comprehensive Utilization of Saline-Alkali Land.This research was supported by the National Natural Science Foundation of China(Grant Nos.U22A20445 and 32300220)the National Science and Foundation of Shandong Province(Grant No.ZR2023ZD30)the National Key R&D Program of China(Grant No.2021YFA0909600)the Science&Technology Specific Project in Agricultural High-tech Industrial Demonstration Area of the Yellow River Delta(Grant No.2022SZX12).
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