Quantitative expression of mesophyll conductance temperature response in the FvCB model and impacts on plant gas exchange estimations

Cell wall thickness has phylogenetically consistent effects on the photosynthetic nitrogen‐use efficiency of terrestrial plants

“…The online Sharkey calculator (Sharkey et al, 2007) and optimised inversion algorithms were commonly employed to estimate V cmax from the A area /C i curve. Recently, Xue et al (2022) stated that the estimated V cmax values around photosynthetic optimal temperatures in 19 C 3 species obtained by these methods were similar. Therefore, the V cmax values reported in survey articles were supposed to be reliable for use in this research study.…”

“…The g m estimations in survey articles were obtained using anatomical, chlorophyll fluorescence‐gas exchange, curve‐fitting, and online isotope‐gas exchange methods. Each method has its own strengths and weaknesses concerning model parameter assumptions made during estimation (Evans, 2021; Terashima et al, 2005; Xue et al, 2022). In this study, the uncertainty in g m estimations was minimised as much as possible by taking the average value of g m when two or three g m estimation methods were applied in a survey article.…”

“…Measuring the CO 2 concentration in chloroplasts is impossible. Leaf internal drawdown of CO 2 concentration (DeltaC, the difference between C a and C c ) was inferred according to Fick's law as follows: DeltaC = A area (1.56/g sw + 1/g m ); this law was commonly used in a model that coupled leaf photosynthesis and stomatal conductance (Onoda et al, 2017; Xue et al, 2022). Bryophytes were found to be the only group of land plants almost entirely lacking stomata.…”

Cell wall thickness has phylogenetically consistent effects on photosynthetic nitrogen-use efficiency of terrestrial plants: a meta-analysis

“…Indeed, it is impossible to determine the CO 2 concentration within the chloroplast stroma. The internal CO 2 drawdown (DeltaC, the difference between C i and C c ) was inferred according to Fick’s first law: DeltaC = C a – A(1.56/g sw – 1/g m ), which was commonly adopted in leaf photosynthesis-stomatal conductance coupled model (Onoda et al ., 2017; Xue et al ., 2022). It was discovered that bryophytes are the only group of plants that are completely devoid of stomata.…”

“…The P R was calculated by using two different methods: the numerical calculation method using V cmax and N area as shown by Niinemets and Tenhunen (1997), and the chemical assay in Rubisco content. In most surveyed papers, the Sharkey online calculator (Sharkey et al, 2007) and optimization inversion algorithms such as the Bayesian algorithm were two common methods to estimate the C c -based V cmax from the A/C i curve (Xue et al, 2022). The estimated V cmax values were comparable among plant species, since Rubisco kinetics parameters incorporated in the parameter estimation methods were consistently taken from the study of Bernacchi et al (2002).…”