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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Enhancement of oxidative stress tolerance in transgenic tobacco plants overproducing Fe-superoxide dismutase in chloroplasts.</title>
<author><name sortKey="Van Camp, W" sort="Van Camp, W" uniqKey="Van Camp W" first="W" last="Van Camp">W. Van Camp</name>
</author>
<author><name sortKey="Capiau, K" sort="Capiau, K" uniqKey="Capiau K" first="K" last="Capiau">K. Capiau</name>
</author>
<author><name sortKey="Van Montagu, M" sort="Van Montagu, M" uniqKey="Van Montagu M" first="M" last="Van Montagu">M. Van Montagu</name>
</author>
<author><name sortKey="Inze, D" sort="Inze, D" uniqKey="Inze D" first="D" last="Inzé">D. Inzé</name>
</author>
<author><name sortKey="Slooten, L" sort="Slooten, L" uniqKey="Slooten L" first="L" last="Slooten">L. Slooten</name>
</author>
</titleStmt>
<publicationStmt><idno type="wicri:source">PMC</idno>
<idno type="pmid">8972606</idno>
<idno type="pmc">158104</idno>
<idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC158104</idno>
<idno type="RBID">PMC:158104</idno>
<date when="1996">1996</date>
<idno type="wicri:Area/Pmc/Corpus">000096</idno>
<idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">000096</idno>
</publicationStmt>
<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Enhancement of oxidative stress tolerance in transgenic tobacco plants overproducing Fe-superoxide dismutase in chloroplasts.</title>
<author><name sortKey="Van Camp, W" sort="Van Camp, W" uniqKey="Van Camp W" first="W" last="Van Camp">W. Van Camp</name>
</author>
<author><name sortKey="Capiau, K" sort="Capiau, K" uniqKey="Capiau K" first="K" last="Capiau">K. Capiau</name>
</author>
<author><name sortKey="Van Montagu, M" sort="Van Montagu, M" uniqKey="Van Montagu M" first="M" last="Van Montagu">M. Van Montagu</name>
</author>
<author><name sortKey="Inze, D" sort="Inze, D" uniqKey="Inze D" first="D" last="Inzé">D. Inzé</name>
</author>
<author><name sortKey="Slooten, L" sort="Slooten, L" uniqKey="Slooten L" first="L" last="Slooten">L. Slooten</name>
</author>
</analytic>
<series><title level="j">Plant Physiology</title>
<idno type="ISSN">0032-0889</idno>
<idno type="eISSN">1532-2548</idno>
<imprint><date when="1996">1996</date>
</imprint>
</series>
</biblStruct>
</sourceDesc>
</fileDesc>
<profileDesc><textClass></textClass>
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<front><div type="abstract" xml:lang="en"><p>A chimeric gene consisting of the coding sequence for chloroplastic Fe superoxide dismutase (FeSOD) from Arabidopsis thaliana, coupled to the chloroplast targeting sequence from the pea ribulose-1,5-bisphosphate carboxylase/oxygenase small subunit, was expressed in Nicotiana tabacum cv Petit Havana SR1. Expression of the transgenic FeSOD protected both the plasmalemma and photosystem II against superoxide generated during illumination of leaf discs impregnated with methyl viologen. By contrast, overproduction of a mitochondrial MnSOD from Nicotiana plumbaginifolia in the chloroplasts of cv SR1 protected only the plasmalemma, but not photosystem II, against methyl viologen (L. Slooten, K. Capiau, W. Van Camp, M. Van Montagu, C. Sybesma, D. Inzé [1995] Plant Physiol 107: 737-750). The difference in effectiveness correlates with different membrane affinities of the transgenic FeSOD and MnSOD. Overproduction of FeSOD does not confer tolerance to H2O2, singlet oxygen, chilling-induced photoinhibition in leaf disc assays, or to salt stress at the whole plant level. In nontransgenic plants, salt stress led to a 2- to 3-fold increase in activity, on a protein basis, of FeSOD, cytosolic and chloroplastic Cu/ZnSOD, ascorbate peroxidase, dehydroascorbate reductase, and glutathione reductase. In FeSOD-overproducing plants under salt stress, the induction of cytosolic and chloroplastic Cu/ZnSOD was suppressed, whereas induction of a water-soluble chloroplastic ascorbate peroxidase isozyme was promoted.</p>
</div>
</front>
</TEI>
<pmc article-type="research-article"><pmc-comment>The publisher of this article does not allow downloading of the full text in XML form.</pmc-comment>
<front><journal-meta><journal-id journal-id-type="nlm-ta">Plant Physiol</journal-id>
<journal-title>Plant Physiology</journal-title>
<issn pub-type="ppub">0032-0889</issn>
<issn pub-type="epub">1532-2548</issn>
</journal-meta>
<article-meta><article-id pub-id-type="pmid">8972606</article-id>
<article-id pub-id-type="pmc">158104</article-id>
<article-id pub-id-type="pii">112/4/1703</article-id>
<article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject>
</subj-group>
</article-categories>
<title-group><article-title>Enhancement of oxidative stress tolerance in transgenic tobacco plants overproducing Fe-superoxide dismutase in chloroplasts.</article-title>
</title-group>
<contrib-group><contrib contrib-type="author"><name><surname>Van Camp</surname>
<given-names>W</given-names>
</name>
</contrib>
<contrib contrib-type="author"><name><surname>Capiau</surname>
<given-names>K</given-names>
</name>
</contrib>
<contrib contrib-type="author"><name><surname>Van Montagu</surname>
<given-names>M</given-names>
</name>
</contrib>
<contrib contrib-type="author"><name><surname>Inzé</surname>
<given-names>D</given-names>
</name>
</contrib>
<contrib contrib-type="author"><name><surname>Slooten</surname>
<given-names>L</given-names>
</name>
</contrib>
</contrib-group>
<aff>Department of Genetics, Flanders Interuniversity Institute for Biotechnology, Universiteit Gent, Belgium.</aff>
<pub-date pub-type="ppub"><month>12</month>
<year>1996</year>
</pub-date>
<volume>112</volume>
<issue>4</issue>
<fpage>1703</fpage>
<lpage>1714</lpage>
<abstract><p>A chimeric gene consisting of the coding sequence for chloroplastic Fe superoxide dismutase (FeSOD) from Arabidopsis thaliana, coupled to the chloroplast targeting sequence from the pea ribulose-1,5-bisphosphate carboxylase/oxygenase small subunit, was expressed in Nicotiana tabacum cv Petit Havana SR1. Expression of the transgenic FeSOD protected both the plasmalemma and photosystem II against superoxide generated during illumination of leaf discs impregnated with methyl viologen. By contrast, overproduction of a mitochondrial MnSOD from Nicotiana plumbaginifolia in the chloroplasts of cv SR1 protected only the plasmalemma, but not photosystem II, against methyl viologen (L. Slooten, K. Capiau, W. Van Camp, M. Van Montagu, C. Sybesma, D. Inzé [1995] Plant Physiol 107: 737-750). The difference in effectiveness correlates with different membrane affinities of the transgenic FeSOD and MnSOD. Overproduction of FeSOD does not confer tolerance to H2O2, singlet oxygen, chilling-induced photoinhibition in leaf disc assays, or to salt stress at the whole plant level. In nontransgenic plants, salt stress led to a 2- to 3-fold increase in activity, on a protein basis, of FeSOD, cytosolic and chloroplastic Cu/ZnSOD, ascorbate peroxidase, dehydroascorbate reductase, and glutathione reductase. In FeSOD-overproducing plants under salt stress, the induction of cytosolic and chloroplastic Cu/ZnSOD was suppressed, whereas induction of a water-soluble chloroplastic ascorbate peroxidase isozyme was promoted.</p>
</abstract>
</article-meta>
</front>
</pmc>
</record>
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