Abstract
The response of normal soybean (Glycine max [L.] Merrill) cultivars to gibberellins (GAs) and to an inhibitor of GA biosynthesis indicated that, as in other species, endogenous GAs are involved in controlling internode length. The responses to GA of several pairs of isogenic dwarf and normal genotypes (isolines) were compared. Dwarf genotypes T209, T244, T256, and M64–503-Duddy apparently are not dwarfed by lesions in the biosynthetic pathway similar to the well-studied mutations in pea and corn. Although these genotypes responded to GA3, their growth as a percentage of initial shoot length was less than that of the normal isolines following GA3 treatment. Dwarf genotype T210 responded to GA3 treatment with a much smaller increase in stature than the other dwarf genotypes. Roots of T210 seedlings were of normal size, which indicated that the mutation in T210 primarily affects shoot growth. Transport and metabolism of GA3 were equivalent in T210 and its non-dwarf isoline, Lincoln. The slight response in shoot length of T210 to GA3 was accounted for by cell elongation, which GA3 promoted to at least the same extent as in Lincoln. Gibberellin A3 had no effect on cell number in T210, although GA3 increased cell number in Lincoln by 53%. Thus, T210 is dwarfed by an inability to carry out GA-promoted cell division.
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Claims 11
Claim · model-written summary
Responses indicate endogenous gibberellins control soybean internode length.
- Taxon
- soybean
Glycine maxe0 - Compound
- endogenous GAse0
- Outcome
- internode lengthe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The response of normal soybean (Glycine max [L.] Merrill) cultivars to gibberellins (GAs) and to an inhibitor of GA biosynthesis indicated that, as in other species, endogenous GAs are involved in controlling internode length.”
Claim · model-written summary
Four dwarf genotypes apparently lacked biosynthetic lesions analogous to those in pea and corn.
- Taxon
- SoybeanGlycine maxt0
- Material
- T209, T244, T256, and M64–503-Duddye0
- Outcome
- not dwarfed by lesions in the biosynthetic pathwaye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Dwarf genotypes T209, T244, T256, and M64–503-Duddy apparently are not dwarfed by lesions in the biosynthetic pathway similar to the well-studied mutations in pea and corn.”
t0“Soybean”
Claim · model-written summary
Four dwarf genotypes responded to GA3 but grew less relative to initial shoot length than normal isolines.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- GA3 treatmente0
- Outcome
- growth as a percentage of initial shoot lengthe0
- Direction
- less thane0
- Comparator
- normal isolinese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Although these genotypes responded to GA3, their growth as a percentage of initial shoot length was less than that of the normal isolines following GA3 treatment.”
t0“Soybean”
Claim · model-written summary
T210 stature increased much less after GA3 than other dwarf genotypes.
- Taxon
- SoybeanGlycine maxt0
- Material
- T210e0
- Treatment
- GA3 treatmente0
- Outcome
- staturee0
- Direction
- much smaller increasee0
- Comparator
- other dwarf genotypese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Dwarf genotype T210 responded to GA3 treatment with a much smaller increase in stature than the other dwarf genotypes.”
t0“Soybean”
Claim · model-written summary
T210 seedling roots had normal size.
- Taxon
- SoybeanGlycine maxt0
- Material
- T210e0
- Organ / stage
- Rootse0
- Outcome
- normal sizee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Roots of T210 seedlings were of normal size”
t0“Soybean”
Claim · model-written summary
The T210 mutation primarily affects shoot growth.
- Taxon
- SoybeanGlycine maxt0
- Material
- T210e0
- Outcome
- shoot growthe0
- Qualifier
- mutatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“which indicated that the mutation in T210 primarily affects shoot growth.”
t0“Soybean”
Claim · model-written summary
GA3 transport and metabolism were equivalent in T210 and Lincoln.
- Taxon
- SoybeanGlycine maxt0
- Material
- T210e0
- Outcome
- Transport and metabolism of GA3e0
- Direction
- equivalente0
- Comparator
- Lincolne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Transport and metabolism of GA3 were equivalent in T210 and its non-dwarf isoline, Lincoln.”
t0“Soybean”
Claim · model-written summary
GA3 promoted cell elongation in T210 at least as much as in Lincoln.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- GA3e0
- Outcome
- cell elongatione0
- Direction
- promotede0
- Comparator
- Lincolne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The slight response in shoot length of T210 to GA3 was accounted for by cell elongation, which GA3 promoted to at least the same extent as in Lincoln.”
t0“Soybean”
Claim · model-written summary
GA3 did not change cell number in T210.
- Taxon
- SoybeanGlycine maxt0
- Material
- T210e0
- Treatment
- Gibberellin A3e0
- Outcome
- cell numbere0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Gibberellin A3 had no effect on cell number in T210”
t0“Soybean”
Claim · model-written summary
GA3 increased cell number in Lincoln by 53%.
- Taxon
- SoybeanGlycine maxt0
- Material
- Lincolne0
- Treatment
- GA3e0
- Outcome
- cell numbere0
- Direction
- increasede0
- Value
- 53%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“GA3 increased cell number in Lincoln by 53%.”
t0“Soybean”
Claim · model-written summary
T210 dwarfism reflects inability to carry out GA-promoted cell division.
- Taxon
- SoybeanGlycine maxt0
- Material
- T210e0
- Outcome
- dwarfede0
- Qualifier
- inability to carry out GA-promoted cell divisione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Thus, T210 is dwarfed by an inability to carry out GA-promoted cell division.”
t0“Soybean”
The same questions in other papers
Gibberellic acid · growth · Glycine max (soybean)Results differ
4 papers in the same direction as this paper · 30 in the opposite direction
- positive
- positive
- positive
31 papers more in this group
See all 35 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.