Claim · model-written summary
Actual in vivo nitrate reductase activity agreed with in situ reduction calculated from whole-plant uptake and accumulation.
- Taxon
- dwarf beant0
- Outcome
- agreed well with in situ reductione0
- Qualifier
- merely endogenous nitrate as substratee0
- Comparator
- in situ reductione0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentSettingDirectionValue
Verbatim
e0“In vivo nitrate reductase activity (NRA) agreed well with in situ reduction, calculated as the difference between uptake and accumulation in whole plants, provided NRA was assayed with merely endogenous nitrate as substrate (‘actual’ NRA).”
t0“dwarf bean”
Title
Fate of nitrate during initial nitrate utilization by nitrogen‐depleted dwarf bean
HANS BRETELER; CHARLOTTE H. HÄNISCH TEN CATE Physiologia Plantarum 1980. doi:10.1111/j.1399-3054.1980.tb03257.x
Other claims from this paper (9)
- Method / resource Detached-root xylem exudation poorly estimated nitrate export from intact dwarf bean roots.
- Observation Most entering nitrate remained unmetabolized in dwarf bean plants.
- Observation Nitrate reduction occurred predominantly in the dwarf bean root system.
- Observation Nitrate accumulation occurred predominantly in the dwarf bean root system.
- Observation Less than 25% of root-reduced nitrate nitrogen was transported to the dwarf bean shoot.
- Observation Dwarf bean nitrate uptake occurred against the concentration gradient between medium and root cells.
- Observation Dwarf bean nitrate uptake probably occurred against the electrochemical potential gradient.
- Intervention effect Decapitation restricted dwarf bean nitrate uptake.
- Intervention effect Ringing at the stem base restricted dwarf bean nitrate uptake.