Abstract
The effect of brassinosteroids (SSHB, 24-Epi), GA3 and IAA on sucrose uptake and export from source leaf was studied in Vicia faba plants. Brassinosteroids, GA3 and IAA applied exogenously to the source leaves were found to enhance the retention of 14C-label and stimulate the uptake in discs of source leaves during 4-h treatment. The hormone-promoted sucrose uptake is probably due to modulation of the H+-ATPase activity as indicated by increasing Vmax-values for sucrose uptake. Enhanced transport of 14C-compounds to the apical sink region was observed in SSHB- and GA3-treated plants after 24 h. SSHB, GA3 and IAA applied to the sink region of Vicia plants, promoted 14C-radiolabel transport to the site of hormone-treated region. On the basis of this observation, we conclude that, like GA3 and IAA, brassinosteroids affect 14C-unloading processes.
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Claims 7
Claim · model-written summary
Brassinosteroids, GA3 and IAA applied to source leaves enhanced the retention of 14C-label in Vicia faba.
- Taxon
- Vicia faba
Vicia fabae0 - Organ / stage
- source leavese1
- Treatment
- Brassinosteroids, GA3 and IAA applied exogenously to the source leavese1
- Outcome
- retention of 14C-labele1
- Direction
- enhancee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“was studied in Vicia faba plants”
e1“Brassinosteroids, GA3 and IAA applied exogenously to the source leaves were found to enhance the retention of 14C-label”
Claim · model-written summary
Brassinosteroids, GA3 and IAA applied to source leaves stimulated sucrose uptake in source leaf discs during 4-h treatment.
- Taxon
- Vicia fabaVicia fabae0
- Organ / stage
- discs of source leavese2
- Treatment
- Brassinosteroids, GA3 and IAA applied exogenously to the source leavese1
- Outcome
- uptakee2
- Direction
- stimulatee2
- Qualifier
- 4-h treatmente2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“was studied in Vicia faba plants”
e1“Brassinosteroids, GA3 and IAA applied exogenously to the source leaves were found to enhance the retention of 14C-label”
e2“stimulate the uptake in discs of source leaves during 4-h treatment”
Claim · model-written summary
The Vmax values for sucrose uptake increased in Vicia faba.
- Taxon
- Vicia fabaVicia fabae0
- Outcome
- Vmax-values for sucrose uptakee3
- Direction
- increasinge3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“was studied in Vicia faba plants”
e3“as indicated by increasing Vmax-values for sucrose uptake”
Claim · model-written summary
The hormone-promoted sucrose uptake is probably due to modulation of H+-ATPase activity in Vicia faba.
- Taxon
- Vicia fabaVicia fabae0
- Gene
- H+-ATPasee4
- Outcome
- sucrose uptakee4
- Qualifier
- probablye4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“was studied in Vicia faba plants”
e4“The hormone-promoted sucrose uptake is probably due to modulation of the H+-ATPase activity”
Claim · model-written summary
SSHB- and GA3-treated Vicia faba plants showed enhanced transport of 14C-compounds to the apical sink region after 24 h.
- Taxon
- Vicia fabaVicia fabae0
- Treatment
- SSHB- and GA3e5
- Outcome
- transport of 14C-compounds to the apical sink regione5
- Direction
- Enhancede5
- Qualifier
- after 24 he5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“was studied in Vicia faba plants”
e5“Enhanced transport of 14C-compounds to the apical sink region was observed in SSHB- and GA3-treated plants after 24 h”
Claim · model-written summary
SSHB, GA3 and IAA applied to the sink region promoted 14C-radiolabel transport to the site of the hormone-treated region in Vicia plants.
- Taxon
- Vicia plantse6
- Organ / stage
- sink regione6
- Treatment
- SSHB, GA3 and IAA applied to the sink regione6
- Outcome
- 14C-radiolabel transport to the site of hormone-treated regione6
- Direction
- promotede6
Not reportedComparator
Verbatim
e6“SSHB, GA3 and IAA applied to the sink region of Vicia plants, promoted 14C-radiolabel transport to the site of hormone-treated region”
Claim · model-written summary
Brassinosteroids affect 14C-unloading processes in Vicia faba.
- Taxon
- Vicia fabaVicia fabae0
- Compound
- brassinosteroidse7
- Outcome
- 14C-unloading processese7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“was studied in Vicia faba plants”
e7“we conclude that, like GA3 and IAA, brassinosteroids affect 14C-unloading processes”
The same questions in other papers
indole-3-acetic acid · nutrient: content · Vicia faba (faba bean)Positive and negative results
1 in the opposite direction
- negative
Gibberellic acid · nutrient: content · Vicia faba (faba bean)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
Gibberellic acid · molecular: metabolites · Vicia faba (faba bean)Results agree
1 paper in the same direction as this paper
- positive
class · nutrient: content · Vicia faba (faba bean)Positive and negative results
1 in the opposite direction
- no effect
class · molecular: metabolites · Vicia faba (faba bean)Results agree
1 paper in the same direction as this paper
- positive
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.