Abstract
We have examined the effects of cytokinin, fusicoccin, and ethylene on auxin-induced changes in gene expression during auxin-promoted cell elongation in soybean (Glycine max L. Merr. cv Wayne) using cloned cDNAs to two auxin-responsive mRNAs (Walker, Key 1982 Proc Natl Acad Sci USA 79: 7185-7989). RNA blot analyses demonstrate that under conditions of cytokinin inhibition of auxin-promoted cell elongation the levels of these two auxin-responsive mRNAs is unaltered. Fusicoccin-promoted elongation is not associated with an enhanced expression of these two mRNAs, suggesting that the increased levels of these mRNAs observed during auxin-promoted cell elongation are not simply due to enhanced rates of cell elongation. We have also determined that ethylene plays no apparent role in the regulation of expression of these mRNAs. However, the auxins indole-3-acetic acid, 2,4-dichlorophenoxyacetic acid, and alpha-naphthalene acetic acid all enhance an accumulation of these mRNAs. We conclude that the regulation of these mRNAs is directly dependent on auxin. That auxin-promoted cell elongation is dependent upon the increased accumulation of these mRNAs remains to be determined.
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Claims 7
Claim · model-written summary
Cytokinin inhibits auxin-promoted soybean cell elongation.
- Taxon
- soybean
Glycine maxe1 - Treatment
- cytokinine0
- Outcome
- auxin-promoted cell elongatione0
- Direction
- inhibitione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under conditions of cytokinin inhibition of auxin-promoted cell elongation”
e1“soybean (Glycine max L. Merr. cv Wayne)”
Claim · model-written summary
Cytokinin inhibition of auxin-promoted soybean cell elongation left levels of two auxin-responsive mRNAs unaltered.
- Taxon
- soybeanGlycine maxe1
- Treatment
- cytokinine0
- Outcome
- levels of these two auxin-responsive mRNAse0
- Direction
- unalterede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under conditions of cytokinin inhibition of auxin-promoted cell elongation the levels of these two auxin-responsive mRNAs is unaltered”
e1“soybean (Glycine max L. Merr. cv Wayne)”
Claim · model-written summary
Fusicoccin-promoted soybean elongation was not associated with enhanced expression of the two auxin-responsive mRNAs.
- Taxon
- soybeanGlycine maxe1
- Treatment
- Fusicoccine0
- Outcome
- expression of these two mRNAse0
- Direction
- not associated with an enhancede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fusicoccin-promoted elongation is not associated with an enhanced expression of these two mRNAs”
e1“soybean (Glycine max L. Merr. cv Wayne)”
Claim · model-written summary
Ethylene plays no apparent role in expression regulation of the soybean auxin-responsive mRNAs.
- Taxon
- soybeanGlycine maxe1
- Treatment
- ethylenee0
- Outcome
- regulation of expression of these mRNAse0
- Direction
- no apparent rolee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ethylene plays no apparent role in the regulation of expression of these mRNAs”
e1“soybean (Glycine max L. Merr. cv Wayne)”
Claim · model-written summary
Indole-3-acetic acid enhanced accumulation of soybean auxin-responsive mRNAs.
- Taxon
- soybeanGlycine maxe1
- Treatment
- indole-3-acetic acide0
- Outcome
- accumulation of these mRNAse0
- Direction
- enhancee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“indole-3-acetic acid, 2,4-dichlorophenoxyacetic acid, and alpha-naphthalene acetic acid all enhance an accumulation of these mRNAs”
e1“soybean (Glycine max L. Merr. cv Wayne)”
Claim · model-written summary
2,4-dichlorophenoxyacetic acid enhanced accumulation of soybean auxin-responsive mRNAs.
- Taxon
- soybeanGlycine maxe1
- Treatment
- 2,4-dichlorophenoxyacetic acide0
- Outcome
- accumulation of these mRNAse0
- Direction
- enhancee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“indole-3-acetic acid, 2,4-dichlorophenoxyacetic acid, and alpha-naphthalene acetic acid all enhance an accumulation of these mRNAs”
e1“soybean (Glycine max L. Merr. cv Wayne)”
Claim · model-written summary
Alpha-naphthalene acetic acid enhanced accumulation of soybean auxin-responsive mRNAs.
- Taxon
- soybeanGlycine maxe1
- Treatment
- alpha-naphthalene acetic acide0
- Outcome
- accumulation of these mRNAse0
- Direction
- enhancee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“indole-3-acetic acid, 2,4-dichlorophenoxyacetic acid, and alpha-naphthalene acetic acid all enhance an accumulation of these mRNAs”
e1“soybean (Glycine max L. Merr. cv Wayne)”
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See all 6 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.