Claim · model-written summary
Drought rapidly reduced nitrate reductase activation state and activity.
- Treatment
- droughte0
- Outcome
- NR activation state and maximal extractable NR activitye0
- Direction
- declined rapidlye0
Zea maysNot reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The NR activation state and maximal extractable NR activity declined rapidly in response to drought”
t0“Maize”
Title
Christine H. Foyer; Marie-Hélène Valadier; Andrea Migge; et al. PLANT PHYSIOLOGY 1998. doi:10.1104/pp.117.1.283
Other claims from this paper (15)
- Observation Young mature maize leaves had little nitrate reserve despite saturating N.
- Intervention effect Drought reduced leaf water potential after three days.
- Intervention effect Drought reduced CO2 assimilation after three days.
- Intervention effect Starch, glucose, and fructose accumulated in droughted leaves.
- Intervention effect Amino acids accumulated in droughted leaves.
- Intervention effect Sucrose did not accumulate in droughted leaves.
- Intervention effect Water deficit slightly increased extractable PEP carboxylase activity.
- Intervention effect Water deficit decreased PEP carboxylase sensitivity to malate.
- Intervention effect Water stress decreased sucrose phosphate synthase activity.
- Intervention effect Water stress increased sucrose phosphate synthase sensitivity to orthophosphate.
- Association Maximum nitrate reductase activity correlated with CO2 assimilation.
- Intervention effect Photosynthesis and nitrate reductase activity recovered upon nutrient restoration.
- Association Nitrate reductase transcripts declined with extractable activity.
- Observation Sucrose phosphate synthase and PEP carboxylase mRNAs were much less affected.
- Mechanism The authors infer coordinated N and C metabolism during drought through synthase and NR activities.