Abstract
The plant response to abiotic stresses involves both abscisic acid (ABA)-dependent and ABA-independent signaling pathways. Here we describe TaCHP, a CHP-rich (for cysteine, histidine, and proline rich) zinc finger protein family gene extracted from bread wheat (Triticum aestivum), is differentially expressed during abiotic stress between the salinity-sensitive cultivar Jinan 177 and its tolerant somatic hybrid introgression cultivar Shanrong No.3. TaCHP expressed in the roots of seedlings at the three-leaf stage, and the transcript localized within the cells of the root tip cortex and meristem. TaCHP transcript abundance was higher in Shanrong No.3 than in Jinan 177, but was reduced by the imposition of salinity or drought stress, as well as by the exogenous supply of ABA. When JN17, a salinity hypersensitive wheat cultivar, was engineered to overexpress TaCHP, its performance in the face of salinity stress was improved, and the ectopic expression of TaCHP in Arabidopsis (Arabidopsis thaliana) also improved the ability of salt tolerance. The expression level of a number of stress reporter genes (AtCBF3, AtDREB2A, AtABI2, and AtABI1) was raised in the transgenic lines in the presence of salinity stress, while that of AtMYB15, AtABA2, and AtAAO3 was reduced in its absence. The presence in the upstream region of the TaCHP open reading frame of the cis-elements ABRE, MYBRS, and MYCRS suggests that it is a component of the ABA-dependent and -independent signaling pathways involved in the plant response to abiotic stress. We suggest that TaCHP enhances stress tolerance via the promotion of CBF3 and DREB2A expression.
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Claims 11
Claim · model-written summary
TaCHP was differentially expressed between two wheat cultivars during abiotic stress.
- Taxon
- bread wheat (Triticum aestivum)
Triticum aestivume0 - Material
- Jinan 177e0
- Gene
- TaCHPe0
- Outcome
- differentially expressede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“TaCHP, a CHP-rich (for cysteine, histidine, and proline rich) zinc finger protein family gene extracted from bread wheat (Triticum aestivum), is differentially expressed during abiotic stress between the salinity-sensitive cultivar Jinan 177 and its tolerant somatic hybrid introgression cultivar Shanrong No.3”
Claim · model-written summary
TaCHP transcripts occurred in seedling root tips.
- Taxon
- WheatTriticum aestivumt0
- Organ / stage
- root tip cortex and meristeme0
- Gene
- TaCHPe0
- Outcome
- transcript localized within the cells of the root tip cortex and meristeme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“TaCHP expressed in the roots of seedlings at the three-leaf stage, and the transcript localized within the cells of the root tip cortex and meristem”
t0“Wheat”
Claim · model-written summary
TaCHP transcript abundance was higher in Shanrong No.3 than Jinan 177.
- Taxon
- WheatTriticum aestivumt0
- Material
- Shanrong No.3e0
- Gene
- TaCHPe0
- Outcome
- TaCHP transcript abundancee0
- Direction
- highere0
- Comparator
- Jinan 177e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“TaCHP transcript abundance was higher in Shanrong No.3 than in Jinan 177”
t0“Wheat”
Claim · model-written summary
Salinity or drought stress and ABA supply reduced TaCHP transcript abundance.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- salinity or drought stresse0
- Gene
- TaCHPe0
- Outcome
- TaCHP transcript abundancee0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“TaCHP transcript abundance was higher in Shanrong No.3 than in Jinan 177, but was reduced by the imposition of salinity or drought stress, as well as by the exogenous supply of ABA”
t0“Wheat”
Claim · model-written summary
Exogenous ABA reduced TaCHP transcript abundance.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- exogenous supply of ABAe0
- Gene
- TaCHPe0
- Outcome
- TaCHP transcript abundancee0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“TaCHP transcript abundance was higher in Shanrong No.3 than in Jinan 177, but was reduced by the imposition of salinity or drought stress, as well as by the exogenous supply of ABA”
t0“Wheat”
Claim · model-written summary
TaCHP overexpression improved salinity performance in JN17 wheat.
- Taxon
- wheatTriticum aestivume0
- Material
- JN17e0
- Treatment
- overexpress TaCHPe0
- Gene
- TaCHPe0
- Outcome
- performance in the face of salinity stresse0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When JN17, a salinity hypersensitive wheat cultivar, was engineered to overexpress TaCHP, its performance in the face of salinity stress was improved”
Claim · model-written summary
Ectopic TaCHP expression improved salt tolerance in Arabidopsis.
- Taxon
- Arabidopsis (Arabidopsis thaliana)
Arabidopsis thalianae0 - Treatment
- ectopic expression of TaCHPe0
- Gene
- TaCHPe0
- Outcome
- ability of salt tolerancee0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ectopic expression of TaCHP in Arabidopsis (Arabidopsis thaliana) also improved the ability of salt tolerance”
Claim · model-written summary
AtCBF3, AtDREB2A, AtABI2 and AtABI1 expression rose in transgenic lines under salinity stress.
- Taxon
- WheatTriticum aestivumt0
- Gene
- AtCBF3, AtDREB2A, AtABI2, and AtABI1e0
- Outcome
- expression levele0
- Direction
- raisede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The expression level of a number of stress reporter genes (AtCBF3, AtDREB2A, AtABI2, and AtABI1) was raised in the transgenic lines in the presence of salinity stress”
t0“Wheat”
Claim · model-written summary
AtMYB15, AtABA2 and AtAAO3 expression was reduced in transgenic lines without salinity stress.
- Taxon
- WheatTriticum aestivumt0
- Gene
- AtMYB15, AtABA2, and AtAAO3e0
- Outcome
- AtMYB15, AtABA2, and AtAAO3e0
- Direction
- reducede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AtMYB15, AtABA2, and AtAAO3 was reduced in its absence”
t0“Wheat”
Claim · model-written summary
Upstream ABRE, MYBRS and MYCRS elements suggest TaCHP participates in ABA dependent and independent stress pathways.
- Taxon
- WheatTriticum aestivumt0
- Gene
- TaCHPe0
- Outcome
- component of the ABA-dependent and -independent signaling pathwayse0
- Qualifier
- cis-elements ABRE, MYBRS, and MYCRSe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The presence in the upstream region of the TaCHP open reading frame of the cis-elements ABRE, MYBRS, and MYCRS suggests that it is a component of the ABA-dependent and -independent signaling pathways involved in the plant response to abiotic stress”
t0“Wheat”
Claim · model-written summary
The authors suggest TaCHP enhances stress tolerance by promoting CBF3 and DREB2A expression.
- Taxon
- WheatTriticum aestivumt0
- Gene
- TaCHPe0
- Outcome
- stress tolerancee0
- Qualifier
- promotion of CBF3 and DREB2A expressione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“We suggest that TaCHP enhances stress tolerance via the promotion of CBF3 and DREB2A expression”
t0“Wheat”
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