Abstract
Expression of nine genes encoding enzymes involved in the sulfur assimilation pathway was examined by RNA blot hybridization. Significantly increased levels of transcripts encoding ATP sulfurylase and APS reductase were apparent under sulfur deprivation. However, in the absence of nitrogen, their responsiveness to sulfur deprivation was markedly reduced. Results suggest that the sulfur assimilation pathway is regulated at the transcriptional level by both nitrogen and sulfur sources.
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Claims 4
Claim · model-written summary
Sulfur deprivation significantly increased transcripts encoding ATP sulfurylase.
- Taxon
- Arabidopsis thaliana
Arabidopsis thalianat0 - Treatment
- sulfur deprivatione0
- Gene
- ATP sulfurylasee0
- Outcome
- levels of transcripts encoding ATP sulfurylasee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Arabidopsis thaliana”
e0“Significantly increased levels of transcripts encoding ATP sulfurylase and APS reductase were apparent under sulfur deprivation.”
Claim · model-written summary
Sulfur deprivation significantly increased transcripts encoding APS reductase.
- Taxon
- Arabidopsis thalianaArabidopsis thalianat0
- Treatment
- sulfur deprivatione0
- Gene
- APS reductasee0
- Outcome
- APS reductasee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Arabidopsis thaliana”
e0“Significantly increased levels of transcripts encoding ATP sulfurylase and APS reductase were apparent under sulfur deprivation.”
Claim · model-written summary
Without nitrogen, transcript responsiveness to sulfur deprivation was markedly reduced.
- Taxon
- Arabidopsis thalianaArabidopsis thalianat0
- Treatment
- absence of nitrogene0
- Outcome
- responsiveness to sulfur deprivatione0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Arabidopsis thaliana”
e0“in the absence of nitrogen, their responsiveness to sulfur deprivation was markedly reduced”
Claim · model-written summary
The authors infer transcriptional regulation of sulfur assimilation by both nitrogen and sulfur sources.
- Taxon
- Arabidopsis thalianaArabidopsis thalianat0
- Outcome
- sulfur assimilation pathwaye0
- Qualifier
- regulated at the transcriptional level by both nitrogen and sulfur sourcese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Arabidopsis thaliana”
e0“the sulfur assimilation pathway is regulated at the transcriptional level by both nitrogen and sulfur sources”
The same questions in other papers
sulfur atom · molecular: expression · Arabidopsis thaliana (thale cress)Results agree
1 paper in the same direction as this paper
- positive
nitrogen · nutrient: content · Arabidopsis thaliana (thale cress)Positive and negative results
2 papers in the same direction as this paper · 3 in the opposite direction
This paper is about lacking the nutrient, so it counts the other way round here.
- negative
- negative
- no effect
2 papers more in this group
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.