title: A model for the irradiance responses of photosynthesis.
abstract: The analysis of the irradiance responses of photosynthetic processes, such as the quantum efficiencies of electron transport by photosystems I and II (PSI and PSII) or the rate of carbon dioxide fixation, is limited by the lack of mechanistically based analytical model for these processes. Starting with a model of P700 redox state, we develop a series of analytical functions which can be used to fit the irradiance responses of the quantum yields for electron transport by PSI and PSII, the irradiance responses of electron transport by PSI and PSII, and even the irradiance response of the fixation rate of carbon dioxide. These functions depend on two or three parameters so they can be fit to typical irradiance response data. We illustrate by example the use of these functions in various applications and discuss further use and development of the basic model described in detail here.
authors.affiliation: Horticulture and Product Physiology Group, Department of Plant Sciences, Wageningen University and Research, Wageningen, 6708 PB, the Netherlands.
authors.forename: Jeremy
authors.identifier: http://orcid.org/0000-0002-0607-4508
authors.initials: J
authors.lastname: Harbinson
authors.affiliation: Centre for Crop Systems Analysis, Department of Plant Sciences, Wageningen University and Research, Wageningen, 6700 AK, the Netherlands.
authors.forename: Xinyou
authors.initials: X
authors.lastname: Yin
mesh_terms: D057486:Carbon Cycle / Q000528:radiation effects; D002245:Carbon Dioxide / Q000378:metabolism; D004579:Electron Transport / Q000528:radiation effects; D008027:Light; D008954:Models, Biological; D010084:Oxidation-Reduction; D010788:Photosynthesis / Q000528:radiation effects*; D045331:Photosystem I Protein Complex / Q000378:metabolism; D019657:Solanaceae / Q000502:physiology* / Q000528:radiation effects*; D013045:Species Specificity
chemical_list: D045331:Photosystem I Protein Complex; D002245:Carbon Dioxide