Abstract
Tissue concentrations of 3', 5'-cyclic AMP have been measured in soybean callus in liquid suspension. After transfer to fresh medium there was a sharp decline in cyclic-AMP concentration within 30 min. This effect was much reduced if sucrose was omitted from the new medium. The presence of cytokinin had no effect on the fluctuations observed during the 20 h immediately following subculture but after that time cytokinin tended to produce much higher concentrations of cyclic AMP. In Avena coleoptiles the application of auxin caused a sharp increase in cyclic-AMP concentration within 15 min. The amount of cyclic AMP in auxin-treated tissue remained higher than the values obtained for untreated samples over the next 3 h. Neither cyclic AMP nor N6, O2-dibutyryl cyclic AMP had any significant effect on the rate of coleoptile extension growth.
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Claims 8
Claim · model-written summary
Soybean callus cyclic AMP concentration declined sharply within 30 minutes of transfer to fresh medium.
- Taxon
- soybean
Glycine maxe0 - Organ / stage
- calluse0
- Treatment
- transfer to fresh mediume1
- Outcome
- cyclic-AMP concentratione1
- Direction
- declinee1
- Value
- 30 mine1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soybean callus”
e1“After transfer to fresh medium there was a sharp decline in cyclic-AMP concentration within 30 min”
Claim · model-written summary
Omitting sucrose greatly reduced the decline in soybean callus cyclic AMP after medium transfer.
- Taxon
- soybeanGlycine maxe0
- Treatment
- sucrose was omittede1
- Outcome
- effecte1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soybean callus”
e1“This effect was much reduced if sucrose was omitted from the new medium”
Claim · model-written summary
Cytokinin had no effect on cyclic AMP fluctuations during the first 20 hours after subculture.
- Taxon
- soybeanGlycine maxe0
- Treatment
- cytokinine1
- Outcome
- fluctuationse1
- Direction
- no effecte1
- Qualifier
- 20 h immediately following subculturee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soybean callus”
e1“The presence of cytokinin had no effect on the fluctuations observed during the 20 h immediately following subculture but after that time cytokinin tended to produce much higher concentrations of cyclic AMP”
Claim · model-written summary
After the first 20 hours, cytokinin tended to produce much higher cyclic AMP concentrations.
- Taxon
- soybeanGlycine maxe0
- Treatment
- cytokinine1
- Outcome
- concentrations of cyclic AMPe1
- Direction
- highere1
- Qualifier
- after that timee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soybean callus”
e1“The presence of cytokinin had no effect on the fluctuations observed during the 20 h immediately following subculture but after that time cytokinin tended to produce much higher concentrations of cyclic AMP”
Claim · model-written summary
Auxin caused a sharp rise in cyclic AMP concentration in Avena coleoptiles within 15 minutes.
- Organ / stage
- coleoptilese1
- Treatment
- auxine1
- Outcome
- cyclic-AMP concentratione1
- Direction
- increasee1
- Value
- 15 mine1
AvenaNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In Avena coleoptiles the application of auxin caused a sharp increase in cyclic-AMP concentration within 15 min”
Claim · model-written summary
Auxin-treated Avena tissue retained higher cyclic AMP than untreated tissue for the next three hours.
- Treatment
- auxin-treatede1
- Outcome
- amount of cyclic AMPe1
- Direction
- highere1
- Value
- 3 he1
- Comparator
- untreated samplese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Avena coleoptiles”
e1“The amount of cyclic AMP in auxin-treated tissue remained higher than the values obtained for untreated samples over the next 3 h”
Claim · model-written summary
cyclic AMP had no significant effect on coleoptile extension growth rate.
- Organ / stage
- coleoptilee1
- Treatment
- cyclic AMPe1
- Outcome
- rate of coleoptile extension growthe1
- Direction
- noe1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Avena coleoptiles”
e1“Neither cyclic AMP nor N6, O2-dibutyryl cyclic AMP had any significant effect on the rate of coleoptile extension growth”
Claim · model-written summary
N6, O2-dibutyryl cyclic AMP had no significant effect on coleoptile extension growth rate.
- Organ / stage
- coleoptilee1
- Treatment
- N6, O2-dibutyryl cyclic AMPe1
- Outcome
- rate of coleoptile extension growthe1
- Direction
- noe1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Avena coleoptiles”
e1“Neither cyclic AMP nor N6, O2-dibutyryl cyclic AMP had any significant effect on the rate of coleoptile extension growth”
The same questions in other papers
3',5'-cyclic AMP · growth · AvenaResults agree
1 paper in the same direction as this paper
- no effect
class · molecular: metabolites · AvenaPositive and negative results
2 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- negative
- positive
1 paper more in this group
See all 5 papers →in vitro · molecular: metabolites · Glycine max (soybean)Positive and negative results
5 papers in the same direction as this paper · 7 in the opposite direction
- positive
- positive
- positive
9 papers more in this group
See all 13 papers →class · molecular: metabolites · Glycine max (soybean)Positive and negative results
10 papers in the same direction as this paper · 4 in the opposite direction
- negative
- negative
- negative
11 papers more in this group
See all 15 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.