Claim · model-written summary
Exogenous hydrogen peroxide improved photosystem II activity in self-grafted watermelon under chilling.
- Taxon
- watermelon
Citrullus lanatust0 - Material
- Cl/Cl plantse0
- Treatment
- exogenous H2O2e0
- Outcome
- PSII activitye0
- Direction
- improvede0
Not reportedGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“exogenous H2O2 improved the PSII activity in Cl/Cl plants under chilling stress”
t0“Watermelon Plants”
Title
Fei Cheng; Min Gao; Junyang Lu; et al. Antioxidants 2021. doi:10.3390/antiox10122024
Other claims from this paper (13)
- Intervention effect Pumpkin rootstock grafting promoted salicylic acid biosynthesis in watermelon scions.
- Intervention effect Chilling caused conjugated salicylic acid hydrolysis to free salicylic acid in roots of pumpkin-grafted watermelon.
- Intervention effect Chilling caused free salicylic acid accumulation in leaves of pumpkin-grafted watermelon.
- Intervention effect Pumpkin rootstock grafting induced an early antioxidant enzyme response in watermelon roots.
- Intervention effect Pumpkin rootstock grafting increased ascorbate peroxidase and glutathione reductase activities in watermelon leaves.
- Mechanism Pumpkin rootstock grafting maintained cellular redox homeostasis in watermelon.
- Intervention effect Exogenous salicylic acid improved chilling tolerance in self-grafted watermelon seedlings.
- Intervention effect Inhibition of salicylic acid biosynthesis reduced chilling tolerance in self-grafted watermelon seedlings.
- Intervention effect DPI treatment decreased photosystem II activity in self-grafted watermelon under chilling.
- Intervention effect DMTU treatment decreased photosystem II activity in self-grafted watermelon under chilling.
- Intervention effect Hydrogen peroxide alleviated the decline in net photosynthetic rate following DMTU or DPI pretreatment under chilling.
- Intervention effect Salicylic acid did not alleviate the photosynthetic rate decline following DMTU or DPI pretreatment under chilling.
- Mechanism The authors infer that pumpkin rootstock improves watermelon chilling tolerance through salicylic acid redistribution and antioxidant regulation linked to hydrogen peroxide signaling.