Claim · model-written summary
UV-B downregulated associated AsA recycling enzyme activities.
- Taxon
- lettuce
Lactuca sativae2 - Treatment
- UV-B exposuree1
- Outcome
- associated enzymatic activitiese0
- Direction
- downregulatede0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but downregulated the associated enzymatic activities”
e1“UV-B exposure upregulated the expression level of most genes encoding the enzymes involving AsA recycling”
e2“lettuce (Lactuca sativa)”
Title
Shujuan Liu; Lei Yu; Lipan Liu; et al. Horticulturae 2023. doi:10.3390/horticulturae9020200
Other claims from this paper (9)
- Intervention effect UV-B did not significantly decrease lettuce shoot fresh or dry weight.
- Intervention effect Photosynthetic gas exchange measures fell during the first four irradiation days and recovered at day seven.
- Intervention effect UV-B increased lettuce AsA, GSH and H2O2 levels significantly.
- Association H2O2 level correlated positively with AsA and GSH levels.
- Intervention effect UV-B upregulated expression of most genes encoding AsA recycling enzymes.
- Mechanism The authors propose that elevated AsA contributes to the AsA–GSH cycle and downregulates AO activity and expression.
- Observation UV-B irradiation affected metabolite levels more than treatment time.
- Mechanism The authors suggest feedback between AsA recycling enzyme expression and activity regulates AsA homeostasis.
- Recommendation The authors recommend short-term UV-B supplementation to enhance lettuce AsA content.