Abstract
A new GH3-related gene, designated DFL2, causes a short hypocotyl phenotype when overexpressed under red and blue light and a long hypocotyl when antisensed under red light conditions. Higher expression of this gene was observed in continuous white, blue and far-red light but the expression level was low in red light and darkness. DFL2 gene expression was induced transiently with red light pulse treatment. DFL2 transgenic plants exhibited a normal root phenotype including primary root elongation and lateral root formation, although primary root elongation was inhibited in antisense transgenic plants only under red light. The adult phenotypes of sense and antisense transgenic plants were not different from that of wild type. DFL2 promoter activity was observed in the hypocotyl. Our results suggest that DFL2 is located downstream of red light signal transduction and determines the degree of hypocotyl elongation.
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Claims 10
Claim · model-written summary
DFL2 overexpression caused short hypocotyls under red and blue light.
- Taxon
- Arabidopsis
Arabidopsist0 - Treatment
- overexpressed under red and blue lighte0
- Gene
- DFL2e0
- Outcome
- short hypocotyl phenotypee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“DFL2, causes a short hypocotyl phenotype when overexpressed under red and blue light”
t0“DFL2, a New Member of the Arabidopsis GH3 Gene Family”
Claim · model-written summary
DFL2 antisense plants had long hypocotyls under red light.
- Taxon
- ArabidopsisArabidopsist0
- Treatment
- antisensed under red light conditionse0
- Gene
- DFL2t0
- Outcome
- long hypocotyle0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a long hypocotyl when antisensed under red light conditions”
t0“DFL2, a New Member of the Arabidopsis GH3 Gene Family”
Claim · model-written summary
DFL2 expression was higher under continuous white, blue and far-red light.
- Taxon
- ArabidopsisArabidopsist0
- Treatment
- continuous white, blue and far-red lighte0
- Gene
- DFL2t0
- Outcome
- expression of this genee0
- Direction
- Highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Higher expression of this gene was observed in continuous white, blue and far-red light”
t0“DFL2, a New Member of the Arabidopsis GH3 Gene Family”
Claim · model-written summary
DFL2 expression was low in red light and darkness.
- Taxon
- ArabidopsisArabidopsist0
- Treatment
- red light and darknesse0
- Gene
- DFL2t0
- Outcome
- expression levele0
- Direction
- lowe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the expression level was low in red light and darkness”
t0“DFL2, a New Member of the Arabidopsis GH3 Gene Family”
Claim · model-written summary
A red light pulse transiently induced DFL2 expression.
- Taxon
- ArabidopsisArabidopsist0
- Treatment
- red light pulse treatmente0
- Gene
- DFL2e0
- Outcome
- DFL2 gene expressione0
- Direction
- inducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“DFL2 gene expression was induced transiently with red light pulse treatment”
t0“DFL2, a New Member of the Arabidopsis GH3 Gene Family”
Claim · model-written summary
DFL2 transgenic plants had normal primary root elongation and lateral root formation.
- Taxon
- ArabidopsisArabidopsist0
- Material
- DFL2 transgenic plantse0
- Gene
- DFL2e0
- Outcome
- normal root phenotype including primary root elongation and lateral root formatione0
Not reportedTreatmentComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“DFL2 transgenic plants exhibited a normal root phenotype including primary root elongation and lateral root formation”
t0“DFL2, a New Member of the Arabidopsis GH3 Gene Family”
Claim · model-written summary
Antisense plants had inhibited primary root elongation under red light.
- Taxon
- ArabidopsisArabidopsist0
- Material
- antisense transgenic plantse0
- Treatment
- red lighte0
- Gene
- DFL2t0
- Outcome
- primary root elongatione0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“primary root elongation was inhibited in antisense transgenic plants only under red light”
t0“DFL2, a New Member of the Arabidopsis GH3 Gene Family”
Claim · model-written summary
Adult sense and antisense transgenic phenotypes did not differ from wild type.
- Taxon
- ArabidopsisArabidopsist0
- Material
- sense and antisense transgenic plantse0
- Gene
- DFL2t0
- Outcome
- adult phenotypese0
- Direction
- not differente0
- Comparator
- wild typee0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The adult phenotypes of sense and antisense transgenic plants were not different from that of wild type”
t0“DFL2, a New Member of the Arabidopsis GH3 Gene Family”
Claim · model-written summary
DFL2 promoter activity was found in the hypocotyl.
- Taxon
- ArabidopsisArabidopsist0
- Organ / stage
- hypocotyle0
- Gene
- DFL2e0
- Outcome
- promoter activitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“DFL2 promoter activity was observed in the hypocotyl”
t0“DFL2, a New Member of the Arabidopsis GH3 Gene Family”
Claim · model-written summary
The authors infer that DFL2 acts downstream of red-light signaling to set hypocotyl elongation.
- Taxon
- ArabidopsisArabidopsist0
- Organ / stage
- hypocotyle0
- Gene
- DFL2e0
- Outcome
- degree of hypocotyl elongatione0
- Qualifier
- downstream of red light signal transductione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“DFL2 is located downstream of red light signal transduction and determines the degree of hypocotyl elongation”
t0“DFL2, a New Member of the Arabidopsis GH3 Gene Family”
The same questions in other papers
light · growth · ArabidopsisResults differ
16 papers in the same direction as this paper · 27 in the opposite direction
- positive
- positive
- positive
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See all 44 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.