Abstract
UNLABELLED: C-repeat binding factor 14 (CBF14) is a plant transcription factor that regulates a set of cold-induced genes, contributing to enhanced frost tolerance during cold acclimation. Many CBF genes are induced by cool temperatures and regulated by day length and light quality, which affect the amount of accumulated freezing tolerance. Here we show that a low red to far-red ratio in white light enhances CBF14 expression and increases frost tolerance at 15°C in winter Triticum aesitivum and Hordeum vulgare genotypes, but not in T. monococcum (einkorn), which has a relatively low freezing tolerance. Low red to far-red ratio enhances the expression of PHYA in all three species, but induces PHYB expression only in einkorn. Based on our results, a model is proposed to illustrate the supposed positive effect of phytochrome A and the negative influence of phytochrome B on the enhancement of freezing tolerance in cereals in response to spectral changes of incident light. KEY WORDS: CBF-regulon, barley, cereals, cold acclimation, freezing tolerance, light regulation, low red/far-red ratio, phytochrome, wheat.
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Claims 7
Claim · model-written summary
Low red to far-red light enhanced CBF14 expression in winter Triticum aesitivum.
- Taxon
- Triticum aesitivume0
- Treatment
- low red to far-red ratio in white lighte0
- Gene
- CBF14e0
- Outcome
- CBF14 expressione0
- Direction
- enhancese0
- Qualifier
- 15°Ce0
Not reportedComparator
Verbatim
e0“a low red to far-red ratio in white light enhances CBF14 expression and increases frost tolerance at 15°C in winter Triticum aesitivum and Hordeum vulgare genotypes, but not in T. monococcum (einkorn)”
Claim · model-written summary
Low red to far-red light increased frost tolerance in winter Triticum aesitivum.
- Taxon
- Triticum aesitivume0
- Treatment
- low red to far-red ratio in white lighte0
- Outcome
- frost tolerancee0
- Direction
- increasese0
- Qualifier
- 15°Ce0
Not reportedComparator
Verbatim
e0“a low red to far-red ratio in white light enhances CBF14 expression and increases frost tolerance at 15°C in winter Triticum aesitivum and Hordeum vulgare genotypes, but not in T. monococcum (einkorn)”
Claim · model-written summary
Low red to far-red light enhanced CBF14 expression in Hordeum vulgare.
- Taxon
- Hordeum vulgare
.jpg?width=60)
Hordeum vulgaree0 - Treatment
- low red to far-red ratio in white lighte0
- Gene
- CBF14e0
- Outcome
- CBF14 expressione0
- Direction
- enhancese0
- Qualifier
- 15°Ce0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“a low red to far-red ratio in white light enhances CBF14 expression and increases frost tolerance at 15°C in winter Triticum aesitivum and Hordeum vulgare genotypes, but not in T. monococcum (einkorn)”
Claim · model-written summary
Low red to far-red light increased frost tolerance in Hordeum vulgare.
- Taxon
- Hordeum vulgareHordeum vulgaree0
- Treatment
- low red to far-red ratio in white lighte0
- Outcome
- frost tolerancee0
- Direction
- increasese0
- Qualifier
- 15°Ce0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a low red to far-red ratio in white light enhances CBF14 expression and increases frost tolerance at 15°C in winter Triticum aesitivum and Hordeum vulgare genotypes, but not in T. monococcum (einkorn)”
Claim · model-written summary
The same enhancement was absent in T. monococcum.
- Taxon
- T. monococcum
Triticum monococcume0 - Treatment
- low red to far-red ratio in white lighte0
- Outcome
- freezing tolerancee0
- Direction
- no_changeinferrede0
- Qualifier
- relatively low freezing tolerancee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a low red to far-red ratio in white light enhances CBF14 expression and increases frost tolerance at 15°C in winter Triticum aesitivum and Hordeum vulgare genotypes, but not in T. monococcum (einkorn), which has a relatively low freezing tolerance”
Claim · model-written summary
Low red to far-red light enhanced PHYA expression in all three cereal species.
- Taxon
- cerealst0
- Treatment
- Low red to far-red ratioe0
- Gene
- PHYAe0
- Outcome
- expression of PHYAe0
- Direction
- enhancese0
Not reportedComparator
Verbatim
e0“Low red to far-red ratio enhances the expression of PHYA in all three species”
t0“freezing tolerance in cereals”
Claim · model-written summary
Low red to far-red light induced PHYB expression only in einkorn.
- Taxon
- einkorne0
- Treatment
- Low red to far-red ratioe0
- Gene
- PHYBe0
- Outcome
- PHYB expressione0
- Direction
- inducese0
Not reportedComparator
Verbatim
e0“Low red to far-red ratio enhances the expression of PHYA in all three species, but induces PHYB expression only in einkorn”
The same questions in other papers
light · molecular: expression · Hordeum vulgare (barley)Positive and negative results
19 papers in the same direction as this paper · 4 in the opposite direction
- positive
- positive
- no effect
20 papers more in this group
See all 24 papers →light · tolerance: abiotic · Hordeum vulgare (barley)Results agree
3 papers in the same direction as this paper
- positive
- positive
- 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.