Claim · model-written summary
Melatonin protected cucumber seed membrane structure against peroxidation during chilling.
- Taxon
- cucumber
Cucumis sativust0 - Treatment
- Melatonine6
- Outcome
- membrane structuree6
- Direction
- protectede6
- Qualifier
- against peroxidation during chillinge6
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Melatonin applied to cucumber (Cucumis sativus L.) seeds”
e6“Melatonin protected membrane structure against peroxidation during chilling”
Title
Melatonin applied to cucumber (Cucumis sativus L.) seeds improves germination during chilling stress
Małgorzata M. Posmyk; M. Bałabusta; M. Wieczorek; et al. Journal of Pineal Research 2008. doi:10.1111/j.1600-079x.2008.00652.x
Other claims from this paper (14)
- Intervention effect Chilling stress reduced cucumber seed germination to 30% at 15 degrees C, compared with 99% at 25 degrees C.
- Intervention effect Chilling stress reduced cucumber seed germination to 4% at 10 degrees C.
- Intervention effect Hydropriming in water improved cucumber seed germination to 50-60% at 15 degrees C.
- Intervention effect Melatonin addition at 25-100 M increased the rate of cucumber seed germination.
- Intervention effect Osmopriming in polyethylene glycol increased cucumber seed germination to 78% at 15 degrees C.
- Intervention effect Osmopriming combined with 50 M melatonin increased cucumber seed germination to 98% at 15 degrees C.
- Intervention effect Osmoprimed cucumber seeds germinated to 43% at 10 degrees C.
- Intervention effect Osmoprimed seeds with 50 M melatonin germinated to 83% at 10 degrees C.
- Intervention effect None of the priming and melatonin treatments induced DNA synthesis in cucumber seeds.
- Observation During the first 24 hours of imbibition at 10 degrees C, mean ploidy and the (2C + 4C = 8C)/2C ratio increased in cucumber seeds.
- Mechanism The increase in mean ploidy indicates that the cucumber seeds were in the advanced Phase II of germination.
- Intervention effect Hydropriming and osmopriming slightly decreased IAA content in cucumber seeds in most cases.
- Intervention effect Hydropriming with 100 and 500 M melatonin increased IAA content in cucumber seeds.
- Intervention effect Excessive melatonin levels provoked oxidative changes in cucumber seed proteins at approximately 4 microg/g fresh weight.