Claim · model-written summary
Water stress reduced relative water content, gas exchange and chlorophyll content similarly in both strains.
- Taxon
- Amaranthus cruentus L.
Amaranthus cruentust0 - Treatment
- water stresse0
- Outcome
- leaf relative water content (RWC), gas-exchange rate and chlorophyll (Chl) contentse0
- Direction
- reducede0
- Comparator
- both leavese0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The water stress equally reduced leaf relative water content (RWC), gas-exchange rate and chlorophyll (Chl) contents in both leaves”
t0“Amaranthus cruentus L.”
Title
Photoprotective function of betacyanin in leaves of Amaranthus cruentus L. under water stress
T. Nakashima; T. Araki; O. Ueno Photosynthetica 2011. doi:10.1007/s11099-011-0062-7
Other claims from this paper (10)
- Association Photoinhibition following high light increased in both strains as water stress developed.
- Observation After high light, photoinhibition was significantly greater in acyanic than betacyanic leaves.
- Observation Betacyanic leaves had approximately 30% higher photochemical quenching coefficient during water stress.
- Observation Nonphotochemical quenching coefficient did not differ significantly between strains.
- Observation Leaf betacyanin increased under water stress.
- Mechanism A decrease in chlorophyll content in betacyanic leaves might enhance the screening effect of betacyanin.
- Mechanism Reduced chlorophyll content increased light penetration through leaves.
- Mechanism Deeper tissue photoinhibition was exacerbated with reduced chlorophyll content.
- Mechanism Chlorophyll fluorescence from deeper tissue became easier to detect.
- Mechanism Leaf betacyanin contributes to photoprotection by lowering excitation pressure on photosystem II through light attenuation under water stress.