Abstract
Main Conclusion
Light quality and intensity regulate plant mesophyll conductance, which has played an essential role in photosynthesis by controlling leaf structural and biochemical properties.
Abstract
Mesophyll conductance (gm), a crucial physiological factor influencing the photosynthetic rate of leaves, is used to describe the resistance of CO2 from the sub-stomatal cavity into the chloroplast up to the carboxylation site. Leaf structural and biochemical components, as well as external environmental factors such as light, temperature, and water, all impact gm. As an essential factor of plant photosynthesis, light affects plant growth and development and plays a vital role in regulating gm as well as determining photosynthesis and yield. This review aimed to summarize the mechanisms of gm response to light. Both structural and biochemical perspectives were combined to reveal the effects of light quality and intensity on the gm, providing a guide for selecting the optimal conditions for intensifying photosynthesis in plants.
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Funding
This work was supported by the Sichuan Science and Technology Program [Grant number 2022JDRC0108]; the Agricultural Science and Technology Innovation Program [Grant numbers ASTIP2022QC03, 34-IUA-03&34-IUA-01]; the Local Financial Project of the National Agricultural Science and Technology Center [Grant number NASC2020KR01] and the Chongqing Science and Technology Program, [Grant number cstc2021jscx-tpyzxX0013].
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Conceptualization: WF; writing—original draft preparation: YP; writing—review and editing: QL, WF, CQ and HP; funding acquisition: WF. All authors have read and agreed to the published version of the manuscript.
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Pang, Y., Liao, Q., Peng, H. et al. CO2 mesophyll conductance regulated by light: a review. Planta 258, 11 (2023). https://doi.org/10.1007/s00425-023-04157-5
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DOI: https://doi.org/10.1007/s00425-023-04157-5