Claim · model-written summary
Loss of PSII electron transfer activity correlated with declining fluorescence ratio.
- Taxon
- Pumpkine1
- Outcome
- photosystem II (PSII) electron transfer activitye0
- Direction
- Losse0
- Comparator
- fluorescence ratioe0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentSettingValueQualifier
Verbatim
e0“Loss of photosystem II (PSII) electron transfer activity correlated with the decrease in the fluorescence ratio.”
t0“leaves”
e1“Pumpkin leaves grown under high light”
Title
E Tyystjärvi; E M Aro Proceedings of the National Academy of Sciences 1996. doi:10.1073/pnas.93.5.2213
Other claims from this paper (10)
- Intervention effect Illumination caused photoinhibition at every studied light intensity.
- Association The photoinhibition rate constant was directly proportional to photon flux density.
- Observation The fluorescence ratio did not decrease under low light without lincomycin.
- Observation The fluorescence ratio did not decrease in darkness with lincomycin.
- Observation Quantum yield of photoinhibition remained constant across photon flux densities.
- Mechanism The authors infer one dominant in vivo photoinhibition mechanism across light intensities.
- Mechanism The authors consider the in vivo mechanism probably distinct from the anaerobic acceptor-side mechanism.
- Association Loss of PSII activity correlated strongly with D1 protein loss under low light.
- Observation Inactive PSII centers with D1 awaiting degradation did not accumulate under low light.
- Mechanism D1 protein turnover was inferred to depend on photoinhibition at low and high light.