Drought tolerance of transgenic sweet potato expressing both Cu/Zn superoxide dismutase and ascorbate peroxidase

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dc.contributor.authorL Yun-
dc.contributor.authorD Xi-ping-
dc.contributor.authorSang Soo Kwak-
dc.contributor.authorK Tanaka-
dc.date.accessioned2017-04-19T09:05:07Z-
dc.date.available2017-04-19T09:05:07Z-
dc.date.issued2006-
dc.identifier.issnI0000183-
dc.identifier.urihttps://oak.kribb.re.kr/handle/201005/7576-
dc.description.abstractTwo strains, Cu/Zn SOD and APX gene transferred sweet potato (TS) and non-transgenic sweet potato (Ipomoea batatas L.) (NT), were used as experimental materials to study the drought tolerance under three different degrees of water stress: 0, -0.44 MPa, -0.78 MPa. The results showed that activities of Cu/Zn SOD and APX increased under -0.44 MPa and decreased under -0.78 MPa (Fig.2), Pn, Gs and leaf water content decreased (Figs.5 and 6), Ci increased, then decreased under water stress (Fig.6), but under the same PEG concentration all these indexes in the TS were higher than those in NT. The accumulation of H2O2 and O2.- (Fig.1) increased the degree of lipid peroxidation of the plasma membrane (Fig.4), prompted the accumulation of MDA (Fig.3), and the accumulation of TS always lower than the NT at the same PEG concentration. All the results showed that the transgenic sweet potato has a stronger ability to clean up active oxygen than the non-transgenic one, and it can keep a higher leaf water content and Pn under water stress, so it has a stronger tolerance to drought.-
dc.titleDrought tolerance of transgenic sweet potato expressing both Cu/Zn superoxide dismutase and ascorbate peroxidase-
dc.title.alternativeDrought tolerance of transgenic sweet potato expressing both Cu/Zn superoxide dismutase and ascorbate peroxidase-
dc.typeArticle-
dc.citation.titleJournal of Plant Physiology and and Molecular Biology-
dc.citation.number4-
dc.citation.endPage457-
dc.citation.startPage451-
dc.citation.volume32-
dc.contributor.affiliatedAuthorSang Soo Kwak-
dc.contributor.alternativeNameYun-
dc.contributor.alternativeNameXi-ping-
dc.contributor.alternativeName곽상수-
dc.contributor.alternativeNameTanaka-
dc.identifier.bibliographicCitationJournal of Plant Physiology and and Molecular Biology, vol. 32, no. 4, pp. 451-457-
dc.subject.keywordactive oxygen-
dc.subject.keywordCu/Zn SOD and APX gene transferred sweet potato-
dc.subject.keyworddrought tolerance-
dc.subject.keywordphotosynthesis-
dc.subject.keywordwater stress-
dc.subject.localactive oxygen-
dc.subject.localCu/Zn SOD and APX gene transferred sweet potato-
dc.subject.localdrought tolerance-
dc.subject.localDrought tolerance-
dc.subject.localphotosynthesis-
dc.subject.localPhotosynthesis-
dc.subject.localwater stress-
dc.subject.localWater stress-
dc.description.journalClassN-
Appears in Collections:
Division of Biomaterials Research > Plant Systems Engineering Research > 1. Journal Articles
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