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Review
. 2024 Jan;241(1):52-58.
doi: 10.1111/nph.19330. Epub 2023 Oct 19.

Estimating leaf day respiration from conventional gas exchange measurements

Xinyou Yin  1 , Jeffrey S Amthor  2
Affiliations
Free article
Review

Estimating leaf day respiration from conventional gas exchange measurements

Xinyou Yin et al. New Phytol. 2024 Jan.
Free article

Abstract

Leaf day respiration (Rd ) strongly influences carbon-use efficiencies of whole plants and the global terrestrial biosphere. It has long been thought that Rd is slower than respiration in the dark at a given temperature, but measuring Rd by gas exchange remains a challenge because leaves in the light are also photosynthesizing. The Kok method and the Laisk method are widely used to estimate Rd . We highlight theoretical limitations of these popular methods, and recent progress toward their improvement by using additional information from chlorophyll fluorescence and by accounting for the photosynthetic reassimilation of respired CO2 . The latest evidence for daytime CO2 and energy release from the oxidative pentose phosphate pathway in chloroplasts appears to be important to understanding Rd .

Keywords: (photo)respired CO2; Yin method; anaplerotic flux; metabolic origins; photosynthesis; refixation; respiration.

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References

    1. Amthor JS. 2000. The McCree-de Wit-Penning de Vries-Thornley respiration paradigms: 30 years later. Annals of Botany 86: 1-20.
    1. Amthor JS. 2010. From sunlight to phytomass: on the potential efficiency of converting solar radiation to phyto-energy. New Phytologist 188: 939-959.
    1. Amthor JS, Koch GW, Willms JR, Layzell DB. 2001. Leaf O2 uptake in the dark is independent of coincident CO2 partial pressure. Journal of Experimental Botany 52: 2235-2238.
    1. Atkin OK, Evans JR, Ball MC, Lambers H, Pons TL. 2000. Leaf respiration of snow gum in the light and dark. Interactions between temperature and irradiance. Plant Physiology 122: 915-923.
    1. Ayub G, Smith RA, Tissue DT, Atkin OK. 2011. Impacts of drought on leaf respiration in darkness and light in Eucalyptus saligna exposed to industrial-age atmospheric CO2 and growth temperature. New Phytologist 190: 1003-1018.

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