Claim · model-written summary
Root nitrate reductase activity, protein and mRNA loss was delayed four hours after dark transfer.
Zea maysNot reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In root tissues, in contrast, there was a 4-h delay in the loss of NRA, NRP, and NR mRNA after transfer to the dark.”
t0“Zea mays”
Title
Induction and Turnover of Nitrate Reductase in Zea mays (Influence of Light)
X. Z. Li; A. Oaks PLANT PHYSIOLOGY 1994. doi:10.1104/pp.106.3.1145
Other claims from this paper (7)
- Intervention effect Shoot nitrate reductase activity and mRNA decayed immediately after dark transfer.
- Intervention effect Shoot nitrate reductase protein changed only slightly during the first four hours of darkness.
- Intervention effect Shoot NRA recovered to 92% of initial levels within 30 minutes after return to light.
- Mechanism Authors infer that shoot NR message production requires light.
- Mechanism Authors infer that darkness inactivates the light-induced active NR protein.
- Mechanism NR protein can reactivate after light follows a two-hour dark interval.
- Mechanism Root response probably follows photosynthetically produced metabolites rather than immediate light-reaction products.