Claim · model-written summary
Exogenous sucrose alleviated the low-temperature inhibition of root N uptake.
- Taxon
- apple
Malus domesticae0 - Treatment
- exogenous sucrosee6
- Outcome
- N uptakee6
- Direction
- alleviatede6
- Comparator
- LT treatmente1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sub-low soil temperature in spring can cause stress to the apple roots”
e1“LT treatment significantly inhibited N uptake (especially NO3−-N) and metabolism in roots”
e6“exogenous sucrose alleviated the inhibition of N uptake by low temperature, increased the NO3−-N content, and increased the activities of enzymes related to N metabolism (NR, GS, NADH-GOGAT, GPT, and GOT) in roots”
Title
Effects of exogenous sucrose on root nitrogen uptake in apple at sub-low root-zone temperature
Xiaoping Zhao; Hanyu Liu; Lijie Li; et al. Chemical and Biological Technologies in Agriculture 2025. doi:10.1186/s40538-025-00819-6
Other claims from this paper (14)
- Intervention effect Low root-zone temperature significantly inhibited root N uptake, especially NO3−-N.
- Intervention effect Low root-zone temperature decreased photosynthesis and chlorophyll fluorescence in apple leaves.
- Intervention effect Low root-zone temperature decreased root activity by 68.85%.
- Intervention effect Low root-zone temperature inhibited growth of apple above-ground parts.
- Intervention effect Exogenous sucrose significantly alleviated the low-temperature inhibition of root and above-ground growth.
- Intervention effect Sucrose accelerated carbon metabolism in apple roots.
- Intervention effect Sucrose increased sugar, acid and ATP contents in apple roots.
- Intervention effect Exogenous sucrose increased the NO3−-N content in apple roots.
- Intervention effect Exogenous sucrose increased the activities of NR, GS and NADH-GOGAT in apple roots.
- Intervention effect Exogenous sucrose increased the activities of GPT and GOT in apple roots.
- Intervention effect Sucrose treatment upregulated MdBMY3, MdSS3 and MdPFK6 among genes of C and N metabolism.
- Intervention effect Sucrose treatment upregulated MdCS2 and MdNPF4.4 among genes of C and N metabolism.
- Intervention effect Sucrose treatment upregulated MdGS and MdGDH1 among genes of C and N metabolism.
- Mechanism Sucrose may enhance apple root N uptake by increasing luteolin and sinapyl alcohol accumulation in flavonoid metabolism.