Abstract
In debladed bean petioles calcium and dry weight increased in the abscission zone during an induction period of 14 hr. Before the microscopic appearance of the abscission layer calcium decreased in the abscission zone and increased in the petiole. Dry matter began to decrease in both the abscission zone and the petiole 24 hr after deblading. The first visual change in the cells of the abscission zone was a swelling of the pectic materials of the cell walls. This was followed by breakdown of other cell wall components, i.e., non-cellulosic polysaccharides and cellulose. The cellulose of the cell walls adjacent and distal to the abscission layer was found to be altered; however, no lignin was present during abscission layer development. The alteration of pectic materials, coupled with breakdown of cell wall components, resulted in the collapse of cells of the abscission layer just prior to separation. Auxin delayed abscission and also delayed the initial increase in calcium, the movement of calcium from the abscission zone to the petiole, and the decrease in dry weight.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 11
Claim · model-written summary
In debladed bean petioles, calcium and dry weight increased in the abscission zone during a 14 hr induction period.
Verbatim
e1“In debladed bean petioles calcium and dry weight increased in the abscission zone during an induction period of 14 hr”
Claim · model-written summary
Before the abscission layer appeared microscopically, calcium decreased in the abscission zone.
Verbatim
e2“Before the microscopic appearance of the abscission layer calcium decreased in the abscission zone”
t0“Abscission Layer Formation in the Bean”
Claim · model-written summary
Before the abscission layer appeared microscopically, calcium increased in the petiole.
Verbatim
e2“Before the microscopic appearance of the abscission layer calcium decreased in the abscission zone and increased in the petiole”
t0“Abscission Layer Formation in the Bean”
Claim · model-written summary
Dry matter began to decrease in both the abscission zone and the petiole 24 hr after deblading.
Verbatim
e3“Dry matter began to decrease in both the abscission zone and the petiole 24 hr after deblading”
t0“Abscission Layer Formation in the Bean”
Claim · model-written summary
The first visual change in the cells of the abscission zone was swelling of the pectic materials of the cell walls.
Verbatim
e4“The first visual change in the cells of the abscission zone was a swelling of the pectic materials of the cell walls”
t0“Abscission Layer Formation in the Bean”
Claim · model-written summary
Breakdown of other cell wall components followed the swelling; the components were non-cellulosic polysaccharides and cellulose.
Verbatim
e5“This was followed by breakdown of other cell wall components, i.e., non-cellulosic polysaccharides and cellulose”
t0“Abscission Layer Formation in the Bean”
Claim · model-written summary
Cellulose of the cell walls adjacent and distal to the abscission layer was altered.
Verbatim
e6“The cellulose of the cell walls adjacent and distal to the abscission layer was found to be altered”
t0“Abscission Layer Formation in the Bean”
Claim · model-written summary
No lignin was present during abscission layer development.
Verbatim
e7“no lignin was present during abscission layer development”
t0“Abscission Layer Formation in the Bean”
Claim · model-written summary
Alteration of pectic materials, coupled with breakdown of cell wall components, resulted in collapse of abscission layer cells just prior to separation.
Verbatim
e5“The alteration of pectic materials, coupled with breakdown of cell wall components, resulted in the collapse of cells of the abscission layer just prior to separation”
t0“Abscission Layer Formation in the Bean”
Claim · model-written summary
Auxin delayed abscission.
Not reportedComparator
Verbatim
e6“Auxin delayed abscission”
t0“Abscission Layer Formation in the Bean”
Claim · model-written summary
Auxin delayed the initial increase in calcium, the movement of calcium from the abscission zone to the petiole, and the decrease in dry weight.
- Taxon
- Beant0
- Treatment
- Auxine7
- Outcome
- the initial increase in calcium, the movement of calcium from the abscission zone to the petiole, and the decrease in dry weighte7
- Direction
- delayede7
Not reportedComparator
Verbatim
e7“Auxin delayed abscission and also delayed the initial increase in calcium, the movement of calcium from the abscission zone to the petiole, and the decrease in dry weight”
t0“Abscission Layer Formation in the Bean”