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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2020.1
- 수록면
- 301 - 307 (7page)
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초록· 키워드
오류제보하기
Secretory class III peroxidases are involved in plant responses to a range of biological stress conditions, including oxidative stress. To investigate the stress-related functions of the swpa4 peroxidase gene in sweetpotato (Ipomoea batatas L.), transgenic plants overexpressing the swpa4 gene under the control of the CaMV 35S promoter were generated using Agrobacterium-mediated transformation. Peroxidase activity was 3- to 13-fold higher in transgenic lines than in control plants. Transgenic plants were tested for tolerance to stress. Following treatment with 400 mM hydrogen peroxide ( H2O2), leaf discs from transgenic plants showed approximately 13–26% less damage than control plants. Transgenic plants also showed enhanced tolerance to high salinity conditions. Following treatment with NaCl, photosynthetic capacity and total chlorophyll contents were less severely impacted in swpa4 transgenic plants than in control plants. Aerial plant parts and storage root yields were not significantly different between transgenic and control plants following cultivation in field conditions. These results indicate that transgenic sweetpotato lines were able to respond efficiently to oxidative and saline stress via overexpression of swpa4.
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참고문헌 (19)
참고문헌 신청
Amaya I / 1999 / Improved germination under osmotic stress of tobacco plants overexpressing a cell wall peroxidase / FEBS Lett 457:80~84
Bowler C / 1991 / Manganese superoxide dismutase can reduce cellular damage mediated by oxygen radicals in transgenic plants / EMBO J 10:1723~1732
Bradford MM / 1976 / A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the principle of protein-dye binding / Anal Biochem 72:248~254
Hiraga S / 2001 / A large family of class III plant peroxidases / Plant Cell Physiol 42:462~468
Jang IC / 2004 / Differential expression of 10 sweetpotato peroxidase genes in response to bacterial pathogen, Pectobacterium chrysanthemi / Plant Physiol Biochem 42:451~455
Bowler C / 1991 / Manganese superoxide dismutase can reduce cellular damage mediated by oxygen radicals in transgenic plants / EMBO J 10:1723~1732
Bradford MM / 1976 / A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the principle of protein-dye binding / Anal Biochem 72:248~254
Hiraga S / 2001 / A large family of class III plant peroxidases / Plant Cell Physiol 42:462~468
Jang IC / 2004 / Differential expression of 10 sweetpotato peroxidase genes in response to bacterial pathogen, Pectobacterium chrysanthemi / Plant Physiol Biochem 42:451~455
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