Claim · model-written summary
The proportion of active-form nitrate reductase was significantly higher in Yang Dao than in Nong Ken under nitrate supply and deprivation.
- Taxon
- rice
Oryza sativat0 - Material
- YDe1
- Treatment
- nitrate supply and deprivatione1
- Outcome
- proportion of NRA in an active forme1
- Direction
- highere1
- Comparator
- NKe1
Not reportedGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The proportion of NRA in an active form in YD was significantly higher than that in NK under both nitrate supply and deprivation conditions”
t0“two rice cultivars”
Title
X. Fan; L. Jia; Y. Li; et al. Journal of Experimental Botany 2007. doi:10.1093/jxb/erm033
Other claims from this paper (13)
- Association Yang Dao had significantly greater nitrogen use efficiency for biomass production than Nong Ken in soil and hydroponics.
- Association Epidermal sub-cellular nitrate pools in leaves and roots showed similar patterns of vacuolar remobilization in both rice cultivars.
- Observation Whole-tissue analysis showed very little depletion of storage pools after 24 h of N supply withdrawal.
- Association Leaf epidermal cell cytosolic nitrate activities were significantly higher in Yang Dao than in Nong Ken.
- Association Before N starvation in 10 mM nitrate, xylem nitrate activity in Yang Dao was lower than in Nong Ken.
- Intervention effect After 24 h of N starvation, xylem nitrate decreased more in Yang Dao than in Nong Ken.
- Association Yang Dao accumulated significantly more nitrate in stems than Nong Ken.
- Mechanism The remobilization pattern suggests that the nitrate store is important for both rice cultivars.
- Intervention effect After 24 h of N supply withdrawal, nitrate reductase activity in Nong Ken was reduced to 80%.
- Intervention effect After 24 h of N supply withdrawal, nitrate reductase activity in Yang Dao showed no decrease.
- Observation Growing in 10 mM nitrate, nitrate reductase activity was undetectable in roots of both rice cultivars.
- Observation Leaf total nitrate reductase activity of equivalent leaves was similar in Nong Ken and Yang Dao.
- Intervention effect Leaf OsNia1 expression responded faster to nitrate deprivation than OsNia2 in both rice cultivars.