Identification of <i>ZmSNAC06</i>, a Maize NAC Family Transcription Factor with Multiple Transcripts Conferring Drought Tolerance in <i>Arabidopsis</i>
Drought is one of the most serious environmental stresses affecting crop production. NAC transcription factors play a crucial role in responding to various abiotic stresses in plants. Here, we identified a maize NAC transcription factor, <i>ZmSNAC06</i>, between drought-tolerant and drou...
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| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-12-01
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| Series: | Plants |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2223-7747/14/1/12 |
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| Summary: | Drought is one of the most serious environmental stresses affecting crop production. NAC transcription factors play a crucial role in responding to various abiotic stresses in plants. Here, we identified a maize NAC transcription factor, <i>ZmSNAC06</i>, between drought-tolerant and drought-sensitive inbred lines through RNA-seq analysis and characterized its function in <i>Arabidopsis</i>. <i>ZmSNAC06</i> had five transcripts, of which <i>ZmSNAC06</i>-T02 had a typical NAC domain, while ZmSNAC06-P02 was localized in the nucleus of maize protoplasts and had transactivation activity in yeasts. The expression of <i>ZmSNAC06</i> in maize was induced by drought. The overexpression of <i>ZmSNAC06</i>-T02 in <i>Arabidopsis</i> resulted in hypersensitivity to abscisic acid (ABA) at the germination stage, and overexpression lines exhibited higher survival rates and higher antioxidant enzyme activities compared with the wild-type under drought stress. These results suggest that <i>ZmSNAC06</i> acts as a positive regulator in drought tolerance and may be used to improve drought tolerance in crops. |
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| ISSN: | 2223-7747 |