Claim · model-written summary
B deficiency slightly increased young leaf nitrate reductase activity.
- Taxon
- teat0
- Organ / stage
- younge0
- Treatment
- B deficiencye0
- Outcome
- Activity of nitrate reductasee0
- Direction
- increasede0
Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Verbatim
e0“Activity of nitrate reductase increased in the young and decreased in the old leaf slightly, but was not influenced by B deficiency in the roots.”
t0“tea (Camellia sinensis (L.) O. Kuntze)”
Title
Roghieh Hajiboland DOAJ (DOAJ: Directory of Open Access Journals) 2011. doi:10.22059/jsciences.2011.23865
Other claims from this paper (16)
- Intervention effect B deficiency significantly decreased height, leaf number, and shoot and root dry matter.
- Intervention effect Young leaf chlorophyll, carotenoid, anthocyanin and flavonoid concentrations were unaffected by B deficiency.
- Intervention effect B deficiency significantly reduced old leaf chlorophyll a/b ratio.
- Intervention effect B deficiency increased old leaf carotenoid concentration.
- Association Old leaf non-photochemical quenching increased alongside carotenoids under B deficiency.
- Intervention effect B deficiency significantly reduced young leaf assimilation, transpiration and stomatal conductance.
- Intervention effect B deficiency slightly decreased old leaf nitrate reductase activity.
- Intervention effect Root nitrate reductase activity was not influenced by B deficiency.
- Intervention effect B starvation diminished young leaf nitrate concentration.
- Intervention effect B starvation increased young leaf nitrite concentration.
- Mechanism Antioxidant enzyme data suggested ascorbate peroxidase protects old leaves.
- Mechanism Antioxidant enzyme data suggested peroxidase protects roots.
- Mechanism Superoxide dismutade was interpreted as protecting all three organs from B deficiency oxidative stress.
- Intervention effect Leaf and root H2O2 did not increase or decreased under B deficiency.
- Association Leaf and root H2O2 response was associated with proline accumulation.
- Mechanism The authors suggested proline protects against free radicals and contributes to B deficiency tolerance.