Abstract
With the inflorescence removed, intercalary growth can be maintained in the scape of Gerbera jamesonii by application of gibberellic acid (GA, gibberellin A3) or indole-3-acetic acid (IAA); the latter usually promotes more rapid and greater elongation than the former because of a greater effect on older tissues. Simultaneous application of the two substances, even when both are at optimal levels, promotes more rapid elongation than either substance alone; in fact, the rate of elongation may equal that of the intact scape. In decapitated scapes (receptacle and involucral bracts removed with the inflorescence), GA and IAA promote cell elongation with reduced or no cell division. In deflowered scapes (receptacle and involucral bracts intact) both GA and IAA promote cell division, as well as cell elongation, so that the pattern of scape elongation is nearly the same as that for intact scapes. Apparently the bracts and receptacle contribute something required for cell division which acts in concert with GA and IAA. Deflowered and decapitated scapes elongate at nearly the same rates initially; thus the rate of elongation does not depend on cell division. The ultimate length of the scape is dependent on cell number and, hence, cell division, since deflowered scapes attain greater lengths than those that are decapitated.
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Claims 14
Claim · model-written summary
Gibberellic acid maintained intercalary scape growth after inflorescence removal.
- Taxon
- Gerbera jamesonii
Gerbera jamesoniie0 - Organ / stage
- scapee0
- Treatment
- gibberellic acide0
- Outcome
- intercalary growthe0
- Direction
- maintainede0
- Comparator
- inflorescence removede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the inflorescence removed, intercalary growth can be maintained in the scape of Gerbera jamesonii by application of gibberellic acid (GA, gibberellin A3) or indole-3-acetic acid (IAA)”
Claim · model-written summary
IAA maintained intercalary scape growth after inflorescence removal.
- Taxon
- Gerbera jamesoniiGerbera jamesoniie0
- Organ / stage
- scapee0
- Treatment
- indole-3-acetic acid (IAA)e0
- Outcome
- intercalary growthe0
- Direction
- maintainede0
- Comparator
- inflorescence removede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the inflorescence removed, intercalary growth can be maintained in the scape of Gerbera jamesonii by application of gibberellic acid (GA, gibberellin A3) or indole-3-acetic acid (IAA)”
Claim · model-written summary
IAA usually caused faster and greater elongation than GA.
- Taxon
- Gerbera jamesoniiGerbera jamesoniie0
- Treatment
- indole-3-acetic acid (IAA)e2
- Outcome
- elongatione1
- Direction
- more rapid and greatere1
- Qualifier
- older tissuese1
- Comparator
- gibberellic acid (GA, gibberellin A3)e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“scape of Gerbera jamesonii”
e1“the latter usually promotes more rapid and greater elongation than the former because of a greater effect on older tissues”
e2“gibberellic acid (GA, gibberellin A3) or indole-3-acetic acid (IAA)”
Claim · model-written summary
Combined GA and IAA promoted faster elongation than either alone.
- Taxon
- Gerbera jamesoniiGerbera jamesoniie0
- Treatment
- Simultaneous application of the two substancese1
- Outcome
- elongatione1
- Direction
- more rapide1
- Comparator
- either substance alonee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Gerbera jamesonii”
e1“Simultaneous application of the two substances, even when both are at optimal levels, promotes more rapid elongation than either substance alone”
Claim · model-written summary
Combined hormone treatment could match intact scape elongation rate.
- Taxon
- Gerbera jamesoniiGerbera jamesoniie0
- Treatment
- Simultaneous application of the two substancese2
- Outcome
- rate of elongatione1
- Direction
- equale1
- Comparator
- intact scapee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Gerbera jamesonii”
e1“the rate of elongation may equal that of the intact scape”
e2“Simultaneous application of the two substances”
Claim · model-written summary
GA promoted cell elongation with reduced or no division in decapitated scapes.
- Taxon
- Gerbera jamesoniiGerbera jamesoniie0
- Treatment
- GAe1
- Outcome
- cell elongation with reduced or no cell divisione1
- Direction
- promotee1
- Comparator
- decapitated scapese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Gerbera jamesonii”
e1“In decapitated scapes (receptacle and involucral bracts removed with the inflorescence), GA and IAA promote cell elongation with reduced or no cell division”
Claim · model-written summary
IAA promoted cell elongation with reduced or no division in decapitated scapes.
- Taxon
- Gerbera jamesoniiGerbera jamesoniie0
- Treatment
- IAAe1
- Outcome
- cell elongation with reduced or no cell divisione1
- Direction
- promotee1
- Comparator
- decapitated scapese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Gerbera jamesonii”
e1“In decapitated scapes (receptacle and involucral bracts removed with the inflorescence), GA and IAA promote cell elongation with reduced or no cell division”
Claim · model-written summary
GA promoted cell division and elongation in deflowered scapes.
- Taxon
- Gerbera jamesoniiGerbera jamesoniie0
- Treatment
- GAe1
- Outcome
- cell division, as well as cell elongatione1
- Direction
- promotee1
- Comparator
- deflowered scapese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Gerbera jamesonii”
e1“In deflowered scapes (receptacle and involucral bracts intact) both GA and IAA promote cell division, as well as cell elongation”
Claim · model-written summary
IAA promoted cell division and elongation in deflowered scapes.
- Taxon
- Gerbera jamesoniiGerbera jamesoniie0
- Treatment
- IAAe1
- Outcome
- cell division, as well as cell elongatione1
- Direction
- promotee1
- Comparator
- deflowered scapese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Gerbera jamesonii”
e1“In deflowered scapes (receptacle and involucral bracts intact) both GA and IAA promote cell division, as well as cell elongation”
Claim · model-written summary
Bracts and receptacle apparently supply something required for cell division.
- Taxon
- Gerbera jamesoniiGerbera jamesoniie0
- Organ / stage
- bracts and receptaclee1
- Outcome
- cell divisione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Gerbera jamesonii”
e1“Apparently the bracts and receptacle contribute something required for cell division which acts in concert with GA and IAA”
Claim · model-written summary
Deflowered and decapitated scapes initially elongated at nearly the same rate.
- Taxon
- Gerbera jamesoniiGerbera jamesoniie0
- Outcome
- ratese1
- Direction
- nearly the samee1
- Comparator
- Deflowered and decapitated scapese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Gerbera jamesonii”
e1“Deflowered and decapitated scapes elongate at nearly the same rates initially”
Claim · model-written summary
The initial elongation rate did not depend on cell division.
- Taxon
- Gerbera jamesoniiGerbera jamesoniie0
- Outcome
- rate of elongatione1
- Qualifier
- cell divisione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Gerbera jamesonii”
e1“thus the rate of elongation does not depend on cell division”
Claim · model-written summary
Deflowered scapes attained greater ultimate length than decapitated scapes.
- Taxon
- Gerbera jamesoniiGerbera jamesoniie0
- Outcome
- lengthse1
- Direction
- greatere1
- Comparator
- decapitatede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Gerbera jamesonii”
e1“deflowered scapes attain greater lengths than those that are decapitated”
Claim · model-written summary
Ultimate scape length depended on cell number and division.
- Taxon
- Gerbera jamesoniiGerbera jamesoniie0
- Outcome
- ultimate length of the scapee1
- Qualifier
- cell number and, hence, cell divisione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Gerbera jamesonii”
e1“The ultimate length of the scape is dependent on cell number and, hence, cell division”
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1 paper more in this group
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See all 8 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.