ArticlePlant cell reports2016
CarNAC4, a NAC-type chickpea transcription factor conferring enhanced drought and salt stress tolerances in Arabidopsis.
Article in Plant cell reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.
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45 citing papers in PubMed, 121 citations in OpenAlex.
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- Molecular Breeding and Drought Tolerance in Chickpea.Life (Basel, Switzerland) · 2022Review
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Corrections and comments
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Authors and funding
11 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
key messageCarNAC4 is a typical stress-responsive NAC transcription factor and enhances drought and salt stress tolerances in transgenic Arabidopsis. Chickpea (Cicer arietinum L.) is relatively vulnerable to abiotic stress conditions, but the tolerance mechanisms for such stresses in chickpea are largely unknown. To identify stress-related factors in chickpea, we previously constructed a cDNA library of chickpea leaves exposed to drought stress conditions. A cDNA encoding a putative NAC transcription factor (CarNAC4) was identified as a putative stress-responsive gene. Our study indicated that the transcript levels of CarNAC4 were enhanced in response to several abiotic stresses and phytohormones. Promoter analysis demonstrated that multiple stress-related cis-acting elements exist in promoter region of CarNAC4. CarNAC4 is localized in the nucleus and binds to the DNA sequence containing CGT[G/A], while the C-terminal region of CarNAC4 contains a transcriptional activation domain. Over-expression of CarNAC4 in Arabidopsis plants improved tolerance to drought and salt stresses. Transgenic plants exhibited greater reduced rates of water loss and more proline accumulation than Col-0 plants under drought stress and less MDA contents than Col-0 plants under salt stress. In addition, over-expression of CarNAC4 enhanced the expression of stress-responsive genes such as RD29A, ERD10, COR15A, COR47, KIN1 and DREB2A. These results indicated that CarNAC4 functions as a transcription factor involved in the regulation of drought and salt stress response.
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