Claim · model-written summary
Photosynthesis did not decrease through 87 moles per cubic meter NaCl under optimal assay conditions.
- Taxon
- cowpea
Vigna unguiculatae0 - Treatment
- NaCl concentrations up to 87 moles per cubic metere1
- Outcome
- photosynthesise1
- Direction
- No decreasee1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“leaves of cowpea (Vigna unquiculata [L.] Walp.)”
e1“No decrease in photosynthesis was obtained for NaCl concentrations up to 87 moles per cubic meter in the plant growing media”
Title
Salinity Effects on Photosynthesis in Isolated Mesophyll Cells of Cowpea Leaves
Z. Plaut; C. M. Grieve; E. Federman PLANT PHYSIOLOGY 1989. doi:10.1104/pp.91.2.493
Other claims from this paper (10)
- Association CO2 fixation was maximal when isolation and assay osmotic potentials approached leaf osmotic potential.
- Intervention effect Hypotonic and hypertonic media reduced photosynthesis regardless of growth salinity.
- Intervention effect At 130 moles per cubic meter NaCl, photosynthesis fell only 30% under optimal assay conditions.
- Observation Photosynthetic inhibition was reversible when saline stress was relieved.
- Intervention effect At 173 moles per cubic meter NaCl, photosynthesis was severely and irreversibly inhibited.
- Mechanism The severe photosynthetic inhibition was attributed to leaf chloride and sodium accumulation.
- Observation Sorbitol uptake by intact cells was insignificant.
- Association Sorbitol uptake was not associated with cell volume changes.
- Observation Cells from low salinity grown plants had a light response curve similar to controls.
- Intervention effect Cells grown at 173 moles per cubic meter NaCl reached light saturation at lower radiant flux density than lower salinity cells.