Abstract
Many plants, including Arabidopsis, show increased resistance to freezing after they have been exposed to low nonfreezing temperatures. This response, termed cold acclimation, is associated with the induction of COR (cold-regulated) genes mediated by the C-repeat/drought-responsive element (CRT/DRE) DNA regulatory element. Increased expression of Arabidopsis CBF1, a transcriptional activator that binds to the CRT/DRE sequence, induced COR gene expression and increased the freezing tolerance of nonacclimated Arabidopsis plants. We conclude that CBF1 is a likely regulator of the cold acclimation response, controlling the level of COR gene expression, which in turn promotes tolerance to freezing.
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Claims 3
Claim · model-written summary
Increased CBF1 expression induced COR gene expression.
- Taxon
- Arabidopsis
Arabidopsise0 - Treatment
- Increased expression of Arabidopsis CBF1e0
- Gene
- CBF1e0
- Outcome
- COR gene expressione0
- Direction
- inducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increased expression of Arabidopsis CBF1, a transcriptional activator that binds to the CRT/DRE sequence, induced COR gene expression”
Claim · model-written summary
Increased CBF1 expression raised freezing tolerance in nonacclimated Arabidopsis.
- Taxon
- ArabidopsisArabidopsise0
- Treatment
- Increased expression of Arabidopsis CBF1e0
- Gene
- CBF1e0
- Outcome
- freezing tolerancee0
- Direction
- increasede0
- Qualifier
- nonacclimatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increased expression of Arabidopsis CBF1, a transcriptional activator that binds to the CRT/DRE sequence, induced COR gene expression and increased the freezing tolerance of nonacclimated Arabidopsis plants”
Claim · model-written summary
Authors infer CBF1 regulates cold acclimation through COR expression and freezing tolerance.
- Taxon
- ArabidopsisArabidopsist0
- Gene
- CBF1e0
- Outcome
- tolerance to freezinge0
- Qualifier
- controlling the level of COR gene expressione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“We conclude that CBF1 is a likely regulator of the cold acclimation response, controlling the level of COR gene expression, which in turn promotes tolerance to freezing”
t0“Arabidopsis”
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