Functional characterization of a grape heat stress transcription factor VvHsfA9 in transgenic Arabidopsis

• Autorzy: Li Z. , Tian Y. , Zhao W. , Xu J. , Wang L. , Peng R. , Yao Q.
• Języki publikacji: EN

Abstrakty

EN

Plant heat stress transcription factor (HSF) family consists of a group of proteins participating in various signal transduction processes. However, only little information regarding HSF genes is available in grape. In this study, we reported the functional analysis of VvHsfA9 (Vitis vinifera HsfA9) in Arabidopsis. VvHsfA9 and HaHsfA9 (Helianthus annuus HsfA9) shared 34.72 % identity over the whole amino acid sequence. We discovered that the C-terminal part (VvHsfA9262–340) is required for the transcriptional activation activity of VvHsfA9. Overexpression of VvHsfA9 in Arabidopsis confers enhanced seed germination under unstressed conditions and late-flowering phenotypes. However, no other stress tolerance was observed during post-germination stage. These results suggest that VvHsfA9 functions as a seedspecific transcription factor in positive modulation of seed germination and may negatively regulate flowering time of plants.

• Wydawca: -
• Czasopismo: Acta Physiologiae Plantarum
• Rocznik: 2015
• Tom: 37
• Numer: 07
• Opis fizyczny: fig.,ref.

Twórcy

autor

Li Z.

• Shanghai Key Laboratory of Agricultural Genetics and Breeding, Agro-Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, 2901 Beidi Rd, Shanghai, 201106, People's Republic of China

autor

Tian Y.

• Shanghai Key Laboratory of Agricultural Genetics and Breeding, Agro-Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, 2901 Beidi Rd, Shanghai, 201106, People's Republic of China

autor

Zhao W.

• Shanghai Key Laboratory of Agricultural Genetics and Breeding, Agro-Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, 2901 Beidi Rd, Shanghai, 201106, People's Republic of China

autor

Xu J.

• Shanghai Key Laboratory of Agricultural Genetics and Breeding, Agro-Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, 2901 Beidi Rd, Shanghai, 201106, People's Republic of China

autor

Wang L.

• Shanghai Key Laboratory of Agricultural Genetics and Breeding, Agro-Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, 2901 Beidi Rd, Shanghai, 201106, People's Republic of China

autor

Peng R.

• Shanghai Key Laboratory of Agricultural Genetics and Breeding, Agro-Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, 2901 Beidi Rd, Shanghai, 201106, People's Republic of China

autor

Yao Q.

• Shanghai Key Laboratory of Agricultural Genetics and Breeding, Agro-Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, 2901 Beidi Rd, Shanghai, 201106, People's Republic of China

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Identyfikatory

DOI

10.1007/s11738-015-1884-x