SCOF-1-expressing transgenic sweetpotato plants show enhanced tolerance to low-temperature stress

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dc.contributor.authorYun Hee Kim-
dc.contributor.authorMyoung Duck Kim-
dc.contributor.authorSung Chul Park-
dc.contributor.authorK S Yang-
dc.contributor.authorJae Cheol Jeong-
dc.contributor.authorHaeng Soon Lee-
dc.contributor.authorSang Soo Kwak-
dc.description.abstractLow-temperature stress represents one of the principal limitations affecting the distribution and productivity of many plant species, including crops such as sweetpotato. Transgenic sweetpotato (Ipomoea batatas L. cv. Yulmi) plants expressing the soybean cold-inducible zinc finger protein (SCOF-1) under control of an oxidative stress-inducible peroxidase (SWPA2) promoter (referred to as SF plants), were developed and evaluated for enhanced tolerance to low-temperature conditions. Following 4 °C treatment of SF plants, SCOF-1 expression correlated positively with tolerance to low-temperature stress at the leaf disc level. Increased SCOF-1 expression also correlated with enhanced tolerance to different low-temperature treatments at the whole plant level. SF plants treated with low-temperature stress (4 or 10 °C for 30 h) exhibited less of a reduction in photosynthetic activity and lipid peroxidation levels than non-transgenic (NT) plants. Furthermore, the photosynthetic activity and lipid peroxidation levels of SF plants recovered to near pre-stress levels after 12 h of recovery at 25 °C. In contrast, these activities remained at a reduced level in NT plants after the same recovery period. Thus, this study has shown that low-temperature stress in sweetpotato can be efficiently modulated by overexpression of SCOF-1.-
dc.titleSCOF-1-expressing transgenic sweetpotato plants show enhanced tolerance to low-temperature stress-
dc.title.alternativeSCOF-1-expressing transgenic sweetpotato plants show enhanced tolerance to low-temperature stress-
dc.citation.titlePlant Physiology and Biochemistry-
dc.contributor.affiliatedAuthorYun Hee Kim-
dc.contributor.affiliatedAuthorMyoung Duck Kim-
dc.contributor.affiliatedAuthorSung Chul Park-
dc.contributor.affiliatedAuthorJae Cheol Jeong-
dc.contributor.affiliatedAuthorHaeng Soon Lee-
dc.contributor.affiliatedAuthorSang Soo Kwak-
dc.identifier.bibliographicCitationPlant Physiology and Biochemistry, vol. 49, no. 12, pp. 1436-1441-
dc.subject.keywordLow-temperature stress-
dc.subject.keywordSoybean cold-inducible zinc finger protein-
dc.subject.keywordStress-inducible promoter-
dc.subject.keywordTransgenic sweetpotato-
dc.subject.localLow temperature stress-
dc.subject.localLow-temperature stress-
dc.subject.localsoybean cold-inducible zinc finger protein-
dc.subject.localSoybean cold-inducible zinc finger protein-
dc.subject.localStress-inducible promoter-
dc.subject.localstress-inducible promoter-
dc.subject.localTransgenic sweetpotato-
dc.subject.localTransgenic sweet potato-
Appears in Collections:
Jeonbuk Branch Institute > Biological Resource Center > 1. Journal Articles
Division of Research on National Challenges > Plant Systems Engineering Research > 1. Journal Articles
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