Claim · model-written summary
Plants with higher photosynthetic rates had greater calculated CO2 concentration at the point of photosynthesis.
- Taxon
- plantsViridiplantaee2
- Treatment
- higher photosynthetic ratese2
- Outcome
- [CO 2 ] ge2
- Direction
- grealere2
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Verbatim
e2“The plants which had (he higher photosynthetic rates at a given light intensity and [CO 2 ] a had grealer values of [CO 2 ] g”
Title
A Model of the Photosynthesizing Leaf
K. W. Brown Physiologia Plantarum 1969. doi:10.1111/j.1399-3054.1969.tb07416.x
Other claims from this paper (11)
- Method / resource The model fits the available data well.
- Observation Calculated CO2 concentration at the point of photosynthesis at high light ranges from 32 to 144 μl/l depending on species.
- Observation Calculated CO2 concentration at the point of photosynthesis decreased from the compensation point to a nearly constant value at high light.
- Association Calculated respiration rates of wheat leaves were twice as high as rates measured in the dark.
- Association Light respiration rate may be twice as great as dark respiration rate in wheat leaves at the same temperature.
- Observation Calculated values of K show variability within and between species.
- Association The maximum N was independent of K in plants.
- Association The relationship between K and maximum quantum efficiency was demonstrated in several species at constant CO2 levels.
- Association Σr was inversely related to the maximum rate of photosynthesis across the species investigated.
- Association Mesophyll resistance calculated for cotton was inversely related to CO2 concentration in air.
- Mechanism CO2 transfer in cotton cells may involve a concentration-dependent chemical reaction in addition to or rather than physical diffusion.