Claim · model-written summary
Nickel deprivation led to substantial urea accumulation in urea-grown rice.
- Taxon
- rice
Oryza sativat0 - Outcome
- accumulated large amounts of ureae0
- Qualifier
- lack of urease activitye0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Urea-grown Ni-deprived plants showed reduced growth and accumulated large amounts of urea owing to the lack of urease activity.”
t0“rice”
Title
Influence of N and Ni supply on nitrogen metabolism and urease activity in rice (Oryza sativa L.)
J. Gerendas; Z. Zhu; B. Sattelmacher Journal of Experimental Botany 1998. doi:10.1093/jxb/49.326.1545
Other claims from this paper (13)
- Intervention effect Nickel status did not affect growth with NH4NO3.
- Observation Arginase and glutamine synthetase activities were unaffected by nickel status.
- Observation Urease activity was undetectable in leaves of low-nickel rice.
- Mechanism Low nickel and arginase action led to urea accumulation under NH4NO3.
- Observation Nickel treatment did not affect amino acid contents or mineral nutrient status other than nickel.
- Intervention effect Nickel deprivation reduced growth in urea-grown rice.
- Observation Urea-grown nickel-deprived rice had low amino acid contents.
- Observation Urea-grown nickel-deprived rice had reduced arginine levels.
- Intervention effect Nickel supplementation increased dry weight in urea-grown rice.
- Intervention effect Nickel supplementation increased amino acid nitrogen in urea-grown rice.
- Intervention effect Nickel supplementation reduced urea contents in urea-grown rice.
- Observation A critical shoot nickel concentration for dry matter production under NH4NO3 could not be determined.
- Observation A shoot nickel concentration of 25 μg Ni kg−1 DW was inadequate for urea-grown rice.