Abstract
ABSTRACT ASR1 is a plant‐specific, highly charged, low molecular weight polypeptide. Purified ASR1 was shown to posses sequence specific Zn 2+ ‐dependent DNA binding activity (Kalifa et al . Biochemical Journal 381, 373–378, 2004). Steady‐state levels of tomato Asr1 mRNA and protein are transiently increased following exposure of plants to polyethylene glycol, NaCl or abscisic acid. The biological role of ASR1 could not be deduced from sequence analyses or sequence homologies. Tobacco plants over‐expressing tomato ASR1 have a decreased rate of water loss and improved salt tolerance. Upon exposure to salt, ASR1‐over‐expressing plants accumulate less Na + and proline than wild‐type plants, and also results in increased steady‐state levels of other gene products under non‐stressed plant growth conditions. Therefore, ASR1 is probably involved in the regulation of water‐ or salt‐stress‐modulated gene expression.
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Claims 9
Claim · model-written summary
Tomato Asr1 mRNA and protein increased transiently after polyethylene glycol exposure.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- polyethylene glycole0
- Gene
- Asr1e0
- Outcome
- Asr1 mRNA and proteine0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Steady‐state levels of tomato Asr1 mRNA and protein are transiently increased following exposure of plants to polyethylene glycol, NaCl or abscisic acid.”
Claim · model-written summary
Tomato Asr1 mRNA and protein increased transiently after NaCl exposure.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- NaCle0
- Gene
- Asr1e0
- Outcome
- Asr1 mRNA and proteine0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Steady‐state levels of tomato Asr1 mRNA and protein are transiently increased following exposure of plants to polyethylene glycol, NaCl or abscisic acid.”
Claim · model-written summary
Tomato Asr1 mRNA and protein increased transiently after abscisic acid exposure.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- abscisic acide0
- Gene
- Asr1e0
- Outcome
- Asr1 mRNA and proteine0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Steady‐state levels of tomato Asr1 mRNA and protein are transiently increased following exposure of plants to polyethylene glycol, NaCl or abscisic acid.”
Claim · model-written summary
ASR1-overexpressing tobacco lost water more slowly.
- Taxon
- Tobacco
Nicotiana tabacume0 - Treatment
- over‐expressing tomato ASR1e0
- Gene
- tomato ASR1e0
- Outcome
- rate of water losse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tobacco plants over‐expressing tomato ASR1 have a decreased rate of water loss and improved salt tolerance.”
Claim · model-written summary
ASR1-overexpressing tobacco had improved salt tolerance.
- Taxon
- TobaccoNicotiana tabacume0
- Treatment
- over‐expressing tomato ASR1e0
- Gene
- tomato ASR1e0
- Outcome
- salt tolerancee0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tobacco plants over‐expressing tomato ASR1 have a decreased rate of water loss and improved salt tolerance.”
Claim · model-written summary
Under salt, ASR1-overexpressing tobacco accumulated less sodium than wild type.
- Taxon
- TobaccoNicotiana tabacumt0
- Treatment
- ASR1‐over‐expressinge0
- Gene
- ASR1e0
- Outcome
- Na +e0
- Direction
- lesse0
- Qualifier
- Upon exposure to salte0
- Comparator
- wild‐type plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Upon exposure to salt, ASR1‐over‐expressing plants accumulate less Na + and proline than wild‐type plants”
t0“Tobacco plants over‐expressing tomato ASR1”
Claim · model-written summary
Under salt, ASR1-overexpressing plants accumulated less proline than wild type.
- Taxon
- TobaccoNicotiana tabacumt0
- Treatment
- ASR1‐over‐expressinge0
- Gene
- ASR1e0
- Outcome
- prolinee0
- Direction
- lesse0
- Qualifier
- Upon exposure to salte0
- Comparator
- wild‐type plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Upon exposure to salt, ASR1‐over‐expressing plants accumulate less Na + and proline than wild‐type plants”
t0“Tobacco plants over‐expressing tomato ASR1”
Claim · model-written summary
ASR1 overexpression increased levels of other gene products without stress.
- Taxon
- TobaccoNicotiana tabacumt0
- Outcome
- steady‐state levels of other gene productse0
- Direction
- increasede0
- Qualifier
- non‐stressed plant growth conditionse0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased steady‐state levels of other gene products under non‐stressed plant growth conditions.”
t0“Tobacco plants over‐expressing tomato ASR1”
Claim · model-written summary
ASR1 was proposed to regulate water- or salt-stress-modulated gene expression.
- Taxon
- TobaccoNicotiana tabacumt0
- Gene
- ASR1e0
- Outcome
- regulation of water‐ or salt‐stress‐modulated gene expressione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ASR1 is probably involved in the regulation of water‐ or salt‐stress‐modulated gene expression.”
t0“Tobacco plants over‐expressing tomato ASR1”
The same questions in other papers
sodium chloride · molecular: expression · Solanum lycopersicum (tomato)Positive and negative results
5 papers in the same direction as this paper · 6 in the opposite direction
- positive
- negative
- negative
8 papers more in this group
See all 12 papers →poly(ethylene glycol) · molecular: expression · Solanum lycopersicum (tomato)Results agree
1 paper in the same direction as this paper
- positive
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.