Overexpression of DnaK from a halotolerant cyanobacterium Aphanothece halophytica enhances the high-temperatue tolerance of tobacco during germination and early growth

DnaK1 from a halotolerant cyanobacterium Aphanothece halophytica, was overexpressed in the cytosol of tobacco. When the control and transgenic tobacco seeds were incubated at 27 degrees C, more than 95% of the control and transgenic tobacco seeds germinated. However, at a high incubation temperature...

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Veröffentlicht in:Plant science : an international journal of experimental plant biology. - 1985. - 160(2001), 3 vom: 05. Feb., Seite 455-461
1. Verfasser: Ono, K (VerfasserIn)
Weitere Verfasser: Hibino, T, Kohinata, T, Suzuki, S, Tanaka, Y, Nakamura, T, Takabe, T
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2001
Zugriff auf das übergeordnete Werk:Plant science : an international journal of experimental plant biology
Schlagworte:Journal Article
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245 1 0 |a Overexpression of DnaK from a halotolerant cyanobacterium Aphanothece halophytica enhances the high-temperatue tolerance of tobacco during germination and early growth 
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520 |a DnaK1 from a halotolerant cyanobacterium Aphanothece halophytica, was overexpressed in the cytosol of tobacco. When the control and transgenic tobacco seeds were incubated at 27 degrees C, more than 95% of the control and transgenic tobacco seeds germinated. However, at a high incubation temperature, 40 degrees C, only 27% of the control seeds germinated whereas 82% of the transgenic seeds germinated. High temperature treatment during the imbibition of seeds delayed germination more in the control plants than in the transformants although the maximum percentage of germination was similar in both plants. The quantum yields of electron transport and plant elongation were higher in the transformant during high temperature treatment in young seedlings, but similar in older leaves. DnaK1 was detected in small amounts in seeds and its levels increased during germination. These data indicate that the expression of DnaK1 from a halotolerant cyanobacterium A. halophytica improved the tolerance to high temperature during germination and early growth 
650 4 |a Journal Article 
700 1 |a Hibino, T  |e verfasserin  |4 aut 
700 1 |a Kohinata, T  |e verfasserin  |4 aut 
700 1 |a Suzuki, S  |e verfasserin  |4 aut 
700 1 |a Tanaka, Y  |e verfasserin  |4 aut 
700 1 |a Nakamura, T  |e verfasserin  |4 aut 
700 1 |a Takabe, T  |e verfasserin  |4 aut 
700 1 |a Takabe, T  |e verfasserin  |4 aut 
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