Claim · model-written summary
Sucrose labeling was higher in slices from cold-stored than warm-stored tubers at either incubation temperature.
- Taxon
- potato
Solanum tuberosumt0 - Treatment
- 6 d cold‐stored materiale0
- Outcome
- rate of labelling of sucrosee0
- Direction
- highere0
- Comparator
- warm‐stored materiale0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the rate of labelling of sucrose in slices from 6 d cold‐stored material was higher than in slices from warm‐stored material, irrespective of whether the incubation occurred at 4°C or at 20°C”
t0“potato tubers”
Title
L. M. HILL; R. REIMHOLZ; R. SCHRÖDER; et al. Plant Cell & Environment 1996. doi:10.1111/j.1365-3040.1996.tb00001.x
Other claims from this paper (18)
- Observation Net sucrose accumulation began after two to four days of cold storage.
- Observation Reducing sugars increased by day ten.
- Observation Sugar accumulation slowed from day twenty.
- Observation Sucrose fell later in cold storage.
- Observation Reducing sugars continued to increase later in cold storage.
- Intervention effect Absolute and relative sucrose synthesis rates decreased after one day at 4°C compared with 20°C.
- Observation Sucrose labeling increased threefold to over 60% of metabolized label after two to four days at 4°C.
- Observation The high sucrose synthesis rate persisted for up to 50 days in cold storage.
- Observation Hexose phosphates first increased and then fell over the next three days as sucrose synthesis increased.
- Association Hexose phosphate levels later rose until day twenty and fell alongside sucrose levels.
- Association UDPglucose remained unchanged for four days and then varied in parallel with sucrose.
- Observation Optimal-assay SPS activity and total SPS protein did not change.
- Observation Under phosphate and limiting substrate, SPS activity rose three to fivefold between days two and four.
- Observation Phosphorylases did not change.
- Observation A new amylolytic activity appeared between days two and four at 4°C.
- Association Changed SPS kinetics and reduced hexose phosphate coincided with six to eightfold stimulation of sucrose synthesis.
- Mechanism The final sugar level is partly determined by cycling between sugar synthesis and degradation.
- Mechanism The onset of cold-storage sugar accumulation was attributed to altered SPS kinetics and a new amylolytic activity.