Differential responses of three sweetpotato metallothionein genes to abiotic stress and heavy metals

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dc.contributor.authorSun Ha Kim-
dc.contributor.authorJae Cheol Jeong-
dc.contributor.authorYoung Ock Ahn-
dc.contributor.authorHaeng Soon Lee-
dc.contributor.authorSang Soo Kwak-
dc.date.accessioned2017-04-19T09:56:02Z-
dc.date.available2017-04-19T09:56:02Z-
dc.date.issued2014-
dc.identifier.issn0301-4851-
dc.identifier.uri10.1007/s11033-014-3582-yko
dc.identifier.urihttps://oak.kribb.re.kr/handle/201005/12177-
dc.description.abstractMetallothioneins (MTs) are cysteine-rich, low molecular weight, metal-binding proteins that are widely distributed in living organisms. Plants produce metal-chelating proteins such as MTs to overcome the toxic effects of heavy metals. We cloned three MT genes from sweetpotato leaves [Ipomoea batatas (L.) Lam.]. The three IbMT genes were classified according to their cysteine residue alignment into type 1 (IbMT1), type 2 (IbMT2), and type 3 (IbMT3). IbMT1 was the most abundantly transcribed MT. It was predominantly expressed in leaves, roots, and callus. IbMT2 transcript was detected only in stems and fibrous roots, whereas IbMT3 was strongly expressed in leaves and stems. The IbMT expression profiles were investigated in plants exposed to heavy metals and abiotic stresses. The levels of IbMT1 expression were strongly elevated in response to Cd and Fe, and moderately higher in response to Cu. The IbMT3 expression pattern in response to heavy metals was similar to that of IbMT1. Exposure to abiotic stresses such as methyl viologen (MV; paraquat), NaCl, polyethylene glycol (PEG), and H2O2 up-regulated IbMT expression; IbMT1 responded strongly to MV and NaCl, whereas IbMT3 was induced by low temperature and PEG. Transgenic Escherichia coli overexpressing IbMT1 protein exhibited results suggest that IbMT could be a useful tool for engineering plants with enhanced tolerance to environmental stresses and heavy metals.-
dc.publisherSpringer-
dc.titleDifferential responses of three sweetpotato metallothionein genes to abiotic stress and heavy metals-
dc.title.alternativeDifferential responses of three sweetpotato metallothionein genes to abiotic stress and heavy metals-
dc.typeArticle-
dc.citation.titleMolecular Biology Reports-
dc.citation.number10-
dc.citation.endPage6966-
dc.citation.startPage6957-
dc.citation.volume41-
dc.contributor.affiliatedAuthorSun Ha Kim-
dc.contributor.affiliatedAuthorJae Cheol Jeong-
dc.contributor.affiliatedAuthorYoung Ock Ahn-
dc.contributor.affiliatedAuthorHaeng Soon Lee-
dc.contributor.affiliatedAuthorSang Soo Kwak-
dc.contributor.alternativeName김선하-
dc.contributor.alternativeName정재철-
dc.contributor.alternativeName안영옥-
dc.contributor.alternativeName이행순-
dc.contributor.alternativeName곽상수-
dc.identifier.bibliographicCitationMolecular Biology Reports, vol. 41, no. 10, pp. 6957-6966-
dc.identifier.doi10.1007/s11033-014-3582-y-
dc.subject.keywordHeavy metal-
dc.subject.keywordMetallothionein-
dc.subject.keywordPhytoremediation-
dc.subject.keywordReactive oxygen species-
dc.subject.keywordSweetpotato-
dc.subject.localheavy metal-
dc.subject.localHeavy metals-
dc.subject.localHeavy metal-
dc.subject.localmetallothionein-
dc.subject.localMetallothionein-
dc.subject.localMetallothioneins-
dc.subject.localphytoremediation-
dc.subject.localPhytoremediation-
dc.subject.localReactive oxidative species-
dc.subject.localReactive oxygen species(ROS)-
dc.subject.localReactive oxygen species-
dc.subject.localReactive Oxygen Species (ROS)-
dc.subject.localReactive Oxygen Species-
dc.subject.localROS-
dc.subject.localReactive oxygen species (ROS)-
dc.subject.localreactive oxygen species-
dc.subject.localreactive oxygen species (ROS)-
dc.subject.localsweet potato-
dc.subject.localsweet potatoes-
dc.subject.localSweet potato (Ipomoea batatas L. Lam)-
dc.subject.localSweet potato (Ipomoea batatas)-
dc.subject.localSweet otato-
dc.subject.localsweet potato (Ipomoea batatas)-
dc.subject.localipomoea batatas-
dc.subject.localSweetpotato (Ipomoea batatas)-
dc.subject.localsweetpotato-
dc.subject.localSweetpotato Ipomoea batatas-
dc.subject.localSweetpotato (Ipomoea batatas L.)-
dc.subject.localSweetpotato-
dc.subject.localSweetpotato (Ipomoea batatas (L.) Lam)-
dc.subject.localSweet potato-
dc.subject.localIpomoea batatas-
dc.subject.localSweet potato (Ipomoea batatas (L.) Lam.)-
dc.description.journalClassY-
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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