Claim · model-written summary
Hypoxia reduced stomatal conductance by 73%–97% in all cultivars.
- Taxon
- beant0
- Treatment
- hypoxia stresse0
- Outcome
- stomatal conductancee0
- Direction
- reductionse0
- Value
- 73%–97%e0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingQualifier
Verbatim
e0“all cultivars under hypoxia stress exhibited reductions in photosynthesis rate (62%–82%), stomatal conductance (73%–97%)”
t0“bean cultivars (Phaseolus vulgaris L.)”
Title
N.F. Velasco; G.A. Ligarreto; H.R. Díaz; et al. South African Journal of Botany 2019. doi:10.1016/j.sajb.2019.02.010
Other claims from this paper (12)
- Intervention effect Hypoxia reduced photosynthesis rate by 62%–82% in all cultivars.
- Intervention effect Hypoxia reduced transpiration rate by 51%–92% in all cultivars.
- Intervention effect Hypoxia reduced actual quantum yield, non-photochemical quenching, and electron transport rate.
- Intervention effect Hypoxia reduced chlorophyll and carotenoid content.
- Intervention effect Hypoxia increased leaf electrolyte leakage.
- Intervention effect Bachue, Bianca, Cerinza, and NUA35 increased proline content by 300%–750% relative to high-oxygen plants.
- Observation Cerinza had the highest water use efficiency, followed by NUA35.
- Observation Cerinza had the lowest dry-mass loss, followed by NUA35.
- Observation Cerinza showed higher hypoxia tolerance than other cultivars, with coefficient 0.36.
- Observation NUA35 showed higher hypoxia tolerance than other cultivars, with coefficient 0.38.
- Mechanism The authors attributed the cultivars’ performance to greater stomatal reduction and low transpiration without a large reduction in CO2 intake.
- Association The authors associated greater hypoxia tolerance in Cerinza and NUA35 with greater water use efficiency.