leaf_photosynthesis_Vcmax_per_mass

Label: Leaf Vcmax per unit leaf mass (Vcmax)
Entity URI: https://w3id.org/APD/traits/trait_0020415
Type: numeric
Definition: Maximum [NCIT:C25564] carboxylation [MOP:0000591] rate [PATO:0000161] by the Rubisco complex [GO:0048492] in plant leaves [PO:0025034], recorded per unit leaf [PO:0025034] mass [PATO:0000125]. The value is a model parameter [STATO:0000034] derived from the initial slope of a photosynthesis [GO:0015979] A-ci response curve, the component that is carbon dioxide [CHEBI:16526] limited and hence limited by Rubisco activity.;The apparent maximum rate of Rubisco (ribulose 1,5-bisphosphate carboxylase/oxygenase) activity carboxylase activity (carboxylation capacity), recorded per unit leaf mass. This is a model-derived value, calculated from the portion of an A-ci response curve (curve showing the photosynthetic response to increasing carbon dioxide concentrations) at low carbon dioxide concentrations. This is the portion of the curve where the photosynthetic rate is limited by the Rubisco activity.
Additional comments: Vcmax values are very dependent on leaf temperature, so leaf temperature needs to be included as a context property.
units: umol{CO2}/g/s
allowable range: 0 - 2 umol{CO2}/g/s

See the AusTraits Plant Dictionary (https://w3id.org/APD/traits/trait_0020415) for additional information about this trait.

Coverage

For this trait, AusTraits includes a total of 128 records. This includes: