Abstract
With the inflorescence removed, intercalary growth can be maintained in the scape of Gerbera jamesonii by application of gibberellic acid (GA, gibberellin A 3 ) 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 11
Claim · model-written summary
Gibberellic acid maintained scape intercalary growth after inflorescence removal.
- Taxon
- Gerbera jamesonii
Gerbera jamesoniie0 - Treatment
- application of gibberellic acide0
- Outcome
- intercalary growthe0
- Direction
- maintainede0
Not reportedComparator
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 A 3 ) or indole‐3‐acetic acid (IAA)”
Claim · model-written summary
IAA maintained scape intercalary growth after inflorescence removal.
- Taxon
- Gerbera jamesoniiGerbera jamesoniie0
- Treatment
- indole‐3‐acetic acide0
- Outcome
- intercalary growthe0
- Direction
- maintainede0
Not reportedComparator
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 A 3 ) or indole‐3‐acetic acid (IAA)”
Claim · model-written summary
IAA usually caused faster and greater elongation than GA.
- Taxon
- Gerbera jamesoniiGerbera jamesoniie0
- Treatment
- the lattere1
- Outcome
- elongatione1
- Direction
- more rapid and greatere1
- Qualifier
- older tissuese1
- Comparator
- the formere1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Gerbera jamesonii”
e1“the latter usually promotes more rapid and greater elongation than the former because of a greater effect on older tissues”
Claim · model-written summary
Combined GA and IAA promoted faster scape 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 GA and IAA elongation rate could equal intact scapes.
- Taxon
- Gerbera jamesoniiGerbera jamesoniie0
- 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“rate of elongation may equal that of the intact scape”
Claim · model-written summary
GA promoted cell elongation in decapitated scapes with reduced or absent division.
- Taxon
- Gerbera jamesoniiGerbera jamesoniie0
- Organ / stage
- decapitated scapese1
- Treatment
- GAe1
- Outcome
- cell elongation with reduced or no cell divisione1
- Direction
- promotee1
Not reportedComparator
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 in decapitated scapes with reduced or absent division.
- Taxon
- Gerbera jamesoniiGerbera jamesoniie0
- Organ / stage
- decapitated scapese1
- Treatment
- IAAe1
- Outcome
- cell elongation with reduced or no cell divisione1
- Direction
- promotee1
Not reportedComparator
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
- Organ / stage
- deflowered scapese1
- Treatment
- GAe1
- Outcome
- cell division, as well as cell elongatione1
- Direction
- promotee1
Not reportedComparator
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
- Organ / stage
- deflowered scapese1
- Treatment
- IAAe1
- Outcome
- cell division, as well as cell elongatione1
- Direction
- promotee1
Not reportedComparator
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
Deflowered and decapitated scapes initially elongated at nearly equal rates.
- Taxon
- Gerbera jamesoniiGerbera jamesoniie0
- Outcome
- elongate at nearly the same ratese1
- Direction
- nearly the samee1
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
Deflowered scapes ultimately became longer than decapitated scapes.
- Taxon
- Gerbera jamesoniiGerbera jamesoniie0
- Organ / stage
- deflowered scapese1
- 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”
The same questions in other papers
Gibberellic acid · cytology · Gerbera jamesonii (Transvaal daisy)Results agree
1 paper in the same direction as this paper
- positive
indole-3-acetic acid · cytology · Gerbera jamesonii (Transvaal daisy)Results agree
1 paper in the same direction as this paper
- positive
Gibberellic acid · growth · Gerbera jamesonii (Transvaal daisy)Results agree
4 papers in the same direction as this paper
- positive
- positive
- positive
1 paper more in this group
See all 5 papers →indole-3-acetic acid · growth · Gerbera jamesonii (Transvaal daisy)Results agree
7 papers in the same direction as this paper
- positive
- positive
- positive
4 papers more in this group
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.