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- W2804431705 abstract "Cold stress is one of the most important abiotic stresses in rice. C 2 H 2 zinc finger proteins play important roles in response to abiotic stresses in plants. In the present study, we isolated and functionally characterized a new C 2 H 2 zinc finger protein transcription factor OsCTZFP8 in rice. OsCTZFP8 encodes a C 2 H 2 zinc finger protein, which contains a typical zinc finger motif, as well as a potential nuclear localization signal (NLS) and a leucine-rich region (L-box). Expression of OsCTZFP8 was differentially induced by several abiotic stresses and was strongly induced by cold stress. Subcellular localization assay and yeast one-hybrid analysis revealed that OsCTZFP8 was a nuclear protein and has transactivation activity. To characterize the function of OsCTZFP8 in rice, the full-length cDNA of OsCTZFP8 was isolated and transgenic rice with overexpression of OsCTZFP8 driven by the maize ubiquitin promoter was generated using Agrobacterium -mediated transformation. Among 46 independent transgenic lines, 6 single-copy homozygous overexpressing lines were selected by Southern blot analysis and Basta resistance segregation assay in both T 1 and T 2 generations. Transgenic rice overexpressing OsCTZFP8 exhibited cold tolerant phenotypes with significantly higher pollen fertilities and seed setting rates than nontransgenic control plants. In addition, yield per plant of OsCTZFP8 -expressing lines was significantly (<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML id=M1><mml:mi>p</mml:mi><mml:mo><</mml:mo><mml:mn>0.01</mml:mn></mml:math>) higher than that of nontransgenic control plants under cold treatments. These results demonstrate that OsCTZFP8 was a C 2 H 2 zinc finger transcription factor that plays an important role in cold tolerance in rice." @default.
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- W2804431705 date "2018-01-01" @default.
- W2804431705 modified "2023-10-17" @default.
- W2804431705 title "Overexpression of a New Zinc Finger Protein Transcription Factor<i>OsCTZFP8</i>Improves Cold Tolerance in Rice" @default.
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- W2804431705 doi "https://doi.org/10.1155/2018/5480617" @default.
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