Claim · model-written summary
Acid rain increased the content of malonyldialdehyde (MDA) in cucumber seedlings.
- Taxon
- cucumber
Cucumis sativuse0 - Treatment
- acid raine1
- Outcome
- content of malonyldialdehyde (MDA)e1
- Direction
- increasede1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cucumber seedlings (Cucumis sativus L. cv. Jingchun No. 4)”
e1“acid rain significantly increased the activities of guaiacol peroxidase (GPX) and superoxide dismutase (SOD), but decreased the activity of catalase (CAT) together with an increased content of malonyldialdehyde (MDA)”
Title
Jing-Quan Yu; Su-Feng Ye; Li-Feng Huang Photosynthetica 2002. doi:10.1023/a:1022658504882
Other claims from this paper (6)
- Intervention effect Simulated acid rain significantly reduced net photosynthetic rate in cucumber seedlings.
- Mechanism Mainly non-stomatal factors contributed to the decrease of photosynthesis under acid rain in cucumber during the experimental period.
- Intervention effect Under acid rain the maximal photochemical efficiency (Fv/Fm) and the quantum yield of PS2 reaction centres (ΦPS2) decreased in cucumber, associated with the reduced photosynthesis.
- Intervention effect Acid rain significantly increased the activities of guaiacol peroxidase (GPX) and superoxide dismutase (SOD) in cucumber seedlings.
- Intervention effect Acid rain decreased the activity of catalase (CAT) in cucumber seedlings.
- Mechanism The authors suggest the changes in photosynthesis under acid rain might be a secondary effect of acidity damage, probably due to lipid peroxidation in the thylakoid membrane, rather than a direct effect on the PS2 reaction centre.