Claim · model-written summary
Protein, RNA and glucose levels decrease in the corollas as they age.
- Taxon
- Digitalis purpurea
Digitalis purpureae0 - Organ / stage
- corollase1
- Outcome
- levelse1
- Direction
- decreasee1
Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Digitalis purpurea”
e1“Maximum protein, RNA and glucose contents occur at, or soon after, flower opening and the levels decrease in the corollas as they age”
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 Fructose reaches a maximum at the same time as glucose but does not decrease as rapidly.
- 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.