Abstract
Gibberellin (GA) relationships in an induced dwarf mutant of barley, brachytic (gene symbol br2) were investigated. The dwarf mutant was suggested to have genetic blockade at the site of conversion from a "pool GA" (presumably GA19) to an "active GA" (presumably GA3) in the pathway of GA biosynthesis. An application of (2-chloroethyl) trimethylammonium chloride (CCC), an inhibitor of GA biosynthesis, to the corresponding normal form (cv. Svanhals) reduced the growth and that of GA3 to the dwarf mutant restored the reduced growth. In all possible hybrid combinations, among 3 dwarf genes, uz, br and br2, all F1 hybrids showed tall normal plant height, thus the site of genetic blockade, if any, may be different one another within these 3 dwarf genes.
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Claims 4
Claim · model-written summary
The br2 dwarf mutant was suggested to block conversion from pool GA to active GA.
- Taxon
- barley
.jpg?width=60)
Hordeum vulgaree0 - Material
- brachytice0
- Gene
- br2e0
- Outcome
- genetic blockadee0
- Qualifier
- conversion from a "pool GA" (presumably GA19) to an "active GA" (presumably GA3)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Gibberellin (GA) relationships in an induced dwarf mutant of barley, brachytic (gene symbol br2) were investigated. The dwarf mutant was suggested to have genetic blockade at the site of conversion from a "pool GA" (presumably GA19) to an "active GA" (presumably GA3) in the pathway of GA biosynthesis.”
Claim · model-written summary
CCC reduced growth of normal Svanhals barley.
- Taxon
- barleyHordeum vulgaret0
- Material
- cv. Svanhalse0
- Treatment
- (2-chloroethyl) trimethylammonium chloride (CCC)e0
- Outcome
- growthe0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An application of (2-chloroethyl) trimethylammonium chloride (CCC), an inhibitor of GA biosynthesis, to the corresponding normal form (cv. Svanhals) reduced the growth”
t0“barley”
Claim · model-written summary
GA3 restored reduced growth of the barley dwarf mutant.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“and that of GA3 to the dwarf mutant restored the reduced growth.”
t0“barley”
Claim · model-written summary
All F1 hybrid combinations among three dwarf genes showed normal tall height.
- Taxon
- barleyHordeum vulgaret0
- Gene
- uz, br and br2e0
- Outcome
- tall normal plant heighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In all possible hybrid combinations, among 3 dwarf genes, uz, br and br2, all F1 hybrids showed tall normal plant height”
t0“barley”
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See all 14 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.