Claim · model-written summary
Appropriate N application promoted rice seedling growth recovery after low temperature stress mainly by increasing activities of antioxidant and nitrogen metabolizing enzymes and regulating GA3 and ABA levels.
- Taxon
- rice
Oryza sativae0 - Treatment
- N applicatione0
- Outcome
- rice seedling growth recovery after low temperature stresse0
- Qualifier
- increasing the activities of antioxidant enzymes and nitrogen metabolizing enzymes as well as regulating the levels of GA 3 and ABAe0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“appropriate N application promoted rice seedling growth recovery after low temperature stress mainly by increasing the activities of antioxidant enzymes and nitrogen metabolizing enzymes as well as regulating the levels of GA 3 and ABA”
Title
Hui Wang; Lei Zhong; Xiaoquan Fu; et al. Frontiers in Plant Science 2023. doi:10.3389/fpls.2023.1133592
Other claims from this paper (13)
- Intervention effect Low temperature stress (average daily temperature 12°C for 4 days) inhibited growth of rice seedlings.
- Intervention effect N application significantly increased seedling height, fresh weight and dry weight after 12 days compared with the zero N group.
- Intervention effect The increases in seedling growth indicators with N application after low temperature stress were relatively higher than with N application at normal temperature.
- Intervention effect Antioxidant enzyme activity of rice seedlings increased significantly after N application.
- Observation Soluble protein content of rice seedlings showed a slow decrease.
- Observation H2O2 and MDA content of rice seedlings decreased significantly.
- Intervention effect Nitrogen increased the expression of genes related to NH4+ and NO3− uptake and transport in rice.
- Intervention effect Nitrogen improved the activity of nitrate reductase (NR) and glutamine synthetase (GS) in rice.
- Mechanism N is asserted to affect GA3 and ABA levels by regulating the anabolism of GA3 and ABA.
- Intervention effect With N application, rice seedlings had high ABA and low GA3 levels from day 0 to day 6.
- Intervention effect With N application, rice seedlings had high GA3 and low ABA levels from day 6 to day 12.
- Association Rice variety B116 showed more obvious growth recovery and stronger growth-related physiological reaction than B144 after N application.
- Recommendation N application of 40 kg hm -2 was more conducive to rapid recovery of rice growth after stress.