Claim · model-written summary
Before layer appearance, calcium increased in the petiole.
Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingValueQualifier
Verbatim
e0“Before the microscopic appearance of the abscission layer calcium decreased in the abscission zone and increased in the petiole”
t0“THE BEAN”
Title
A HISTOCHEMICAL STUDY OF ABSCISSION LAYER FORMATION IN THE BEAN
H. P. Rasmussen; M. J. Bukovac American Journal of Botany 1969. doi:10.1002/j.1537-2197.1969.tb07508.x
Other claims from this paper (13)
- Observation Calcium increased in the abscission zone of debladed bean petioles during the 14 hr induction period.
- Observation Dry weight increased in the abscission zone during the 14 hr induction period.
- Observation Before layer appearance, calcium decreased in the abscission zone.
- Observation Dry matter decreased in abscission zone and petiole 24 hr after deblading.
- Observation Pectic material swelling was the first visual change in abscission zone cells.
- Observation Non-cellulosic polysaccharides and cellulose subsequently broke down.
- Observation Cellulose adjacent and distal to the layer was altered.
- Observation No lignin was present during layer development.
- Mechanism Cell wall component changes caused abscission layer cells to collapse before separation.
- Intervention effect Auxin delayed abscission in bean petioles.
- Intervention effect Auxin delayed initial increase in calcium in bean petioles.
- Intervention effect Auxin delayed movement of calcium from the abscission zone to the petiole in bean petioles.
- Intervention effect Auxin delayed decrease in dry weight in bean petioles.