Claim · model-written summary
Fructose reaches a maximum at the same time as glucose but does not decrease as rapidly.
- Taxon
- Digitalis purpurea
Digitalis purpureae0 - Outcome
- Fructosee1
- Direction
- maximume1
- Qualifier
- does not decrease as rapidlye1
- Comparator
- glucosee1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentSettingValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Digitalis purpurea”
e1“Fructose reaches a maximum at the same time as glucose but does not decrease as rapidly”
Title
Flower Development and Senescence in Digitalis purpurea L., cv. Foxy
A. D. STEAD; K. G. MOORE Annals of Botany 1977. doi:10.1093/oxfordjournals.aob.a085290
Other claims from this paper (19)
- Observation Flowers of Digitalis purpurea cv. Foxy take just over a week to develop from the smallest buds and open.
- Observation Both the anthers and the stigma are closed when the flower opens.
- Observation The anterior anthers dehisce 2 days after flower opening.
- Observation The posterior anthers dehisce a day after the anterior anthers.
- Observation The stigma opens 2 days later still after flower opening.
- Observation The corolla remains attached for a further 2 days after the stigma opens.
- Observation The corolla reaches its maximum size soon after opening and then stays constant.
- Association Corolla fresh weight increases throughout the attached life of the corolla.
- Association Corolla dry weight reaches a maximum at flower opening.
- Association Corolla dry weight decreases during the remainder of the attached life.
- Observation Anthocyanin content varies greatly from spike to spike.
- Observation In some spikes the maximum anthocyanin content is at flower opening, and in others it is much later.
- Observation Anthocyanin loss with ageing is very small, and the corollas are abscised without visible wilting or fading.
- Association Protein, RNA and glucose contents are maximal at or soon after flower opening.
- Association Protein, RNA and glucose levels decrease in the corollas as they age.
- Observation Fructose becomes the major reducing sugar in the older corollas.
- Observation Sucrose cannot be detected in any flower.
- Association Ethylene production increases steadily with flower age.
- Association The maximum ethylene production is recorded from flowers that have recently abscised the corolla, whether before or within the collection tube.