Claim · model-written summary
No lignin was present during layer development.
Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValueQualifier
Verbatim
e0“no lignin was present during abscission layer development”
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 Before layer appearance, calcium increased in the petiole.
- 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.
- 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.