Claim · model-written summary
Some exogenous nitrite was oxidized to nitrate in roots.
- Taxon
- pisum sativum
Lathyrus oleraceust0 - Outcome
- nitrite is oxidized to nitratee0
- Qualifier
- roots exposed to exogenous nitritee0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pisum sativum”
e0“Some nitrite is oxidized to nitrate in roots exposed to exogenous nitrite”
Title
J. Sahulka; Ludmila Lisá Biologia Plantarum 1978. doi:10.1007/bf02923328
Other claims from this paper (10)
- Intervention effect Sucrose enhanced nitrate reductase induction in excised pea roots exposed to nitrate and nitrite.
- Association Sugar transport at the time of induction preferentially supported NR synthesis.
- Observation NR induction persisted for some time without external sugar influx after sugar-saturated precultivation.
- Association Sustained high NR levels depended on sustained sugar and nitrate influx.
- Observation NR induction was low after 20 hours of precultivation without sucrose despite high sugar content.
- Mechanism Sugar compartmentation was proposed as important for NR induction.
- Intervention effect Sucrose supplied with nitrate did not influence total nitrate content.
- Mechanism The authors assumed nitrate formed from nitrite was responsible for NR induction.
- Mechanism The authors proposed that sugars may directly affect NR synthesis as coinducers or derepressors.
- Observation NR was found not to be a product-inducible enzyme.