UVB‐lnduced DNA Damage and Its Photorepair in Nuclei and Chloroplasts of Spinacia oleracea L.
Identifieur interne : 001486 ( Istex/Curation ); précédent : 001485; suivant : 001487UVB‐lnduced DNA Damage and Its Photorepair in Nuclei and Chloroplasts of Spinacia oleracea L.
Auteurs : M. Hada [Japon] ; T. Hashimoto [Japon] ; O. Nikaido [Japon] ; M. Shin [Japon]Source :
- Photochemistry and Photobiology [ 0031-8655 ] ; 1998-09.
English descriptors
- KwdEn :
- Ammonium sulfate, Chloroplast, Cyclobutane pyrimidine dimer, Dark repair, Data show, Deionized water, Dimer, Elisa, Elisa system, Fresh weight equivalent, Hexadecyltrimethylammonium bromide, Immunosorbent assay, Kobe, Kobe university, Model riken, Monoclonal antibodies, Photolyase, Photolyase preparation, Photolyase system, Photoproducts, Photorepair, Photorepair system, Pyrimidine, Pyrimidine pyrimidinone photoproducts, Reaction mixture, Spectral photon distribution, Spinach, Spinacia oleracea, Subsequent exposure, Total volume, White light.
- Teeft :
- Ammonium sulfate, Chloroplast, Cyclobutane pyrimidine dimer, Dark repair, Data show, Deionized water, Dimer, Elisa, Elisa system, Fresh weight equivalent, Hexadecyltrimethylammonium bromide, Immunosorbent assay, Kobe, Kobe university, Model riken, Monoclonal antibodies, Photolyase, Photolyase preparation, Photolyase system, Photoproducts, Photorepair, Photorepair system, Pyrimidine, Pyrimidine pyrimidinone photoproducts, Reaction mixture, Spectral photon distribution, Spinach, Spinacia oleracea, Subsequent exposure, Total volume, White light.
Abstract
Ultraviolet‐B‐induced lesions and their photorepair in nuclear and chloroplast DNA of spinach (Spinacia oleracea L.) leaves were examined with two photoproducts, cyclobutane pyrimidine dimers (CPD) and pyrimidine (6‐4) pyrimidinone photoproducts (6‐4PP). These photoproducts were induced both in nuclear and chloroplast DNA by UVB irradiation and could be detected by enzyme‐linked immunosorbent assay using their respective monoclonal antibodies. Formation of CPD was greater in nuclear DNA than in chloroplast DNA (about 10 to 7), whereas 6‐4PP formation was comparable in both DNA. On subsequent exposure of leaves to blue/UVA after UVB irradiation, photorepair of CPD and 6‐4PP occurred in nuclear DNA but not in chloroplast DNA. When isolated chloroplasts were irradiated with UVB, CPD was also induced in their DNA. But photorepair of CPD did not occur in them by subsequent exposure to blue/UVA, suggesting that no photorepair system operates in chloroplasts.
Url:
DOI: 10.1111/j.1751-1097.1998.tb09688.x
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Hashimoto</name><affiliation wicri:level="1"><mods:affiliation>Department of Life Science, Kobe Women's University, Kobe, Japan</mods:affiliation><country xml:lang="fr">Japon</country><wicri:regionArea>Department of Life Science, Kobe Women's University, Kobe</wicri:regionArea></affiliation></author><author><name sortKey="Nikaido, O" sort="Nikaido, O" uniqKey="Nikaido O" first="O." last="Nikaido">O. Nikaido</name><affiliation wicri:level="1"><mods:affiliation>Division of Radiation Biology, Kanazawa University, Kanazawa, Japan</mods:affiliation><country xml:lang="fr">Japon</country><wicri:regionArea>Division of Radiation Biology, Kanazawa University, Kanazawa</wicri:regionArea></affiliation></author><author><name sortKey="Shin, M" sort="Shin, M" uniqKey="Shin M" first="M." last="Shin">M. 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Hada</name><affiliation wicri:level="1"><mods:affiliation>Department of Biology, Kobe University, Kobe, Japan</mods:affiliation><country xml:lang="fr">Japon</country><wicri:regionArea>Department of Biology, Kobe University, Kobe</wicri:regionArea></affiliation><affiliation wicri:level="1"><mods:affiliation>E-mail: mhada@biol.kobe‐u.ac.jp</mods:affiliation><country wicri:rule="url">Japon</country></affiliation></author><author><name sortKey="Hashimoto, T" sort="Hashimoto, T" uniqKey="Hashimoto T" first="T." last="Hashimoto">T. Hashimoto</name><affiliation wicri:level="1"><mods:affiliation>Department of Life Science, Kobe Women's University, Kobe, Japan</mods:affiliation><country xml:lang="fr">Japon</country><wicri:regionArea>Department of Life Science, Kobe Women's University, Kobe</wicri:regionArea></affiliation></author><author><name sortKey="Nikaido, O" sort="Nikaido, O" uniqKey="Nikaido O" first="O." last="Nikaido">O. Nikaido</name><affiliation wicri:level="1"><mods:affiliation>Division of Radiation Biology, Kanazawa University, Kanazawa, Japan</mods:affiliation><country xml:lang="fr">Japon</country><wicri:regionArea>Division of Radiation Biology, Kanazawa University, Kanazawa</wicri:regionArea></affiliation></author><author><name sortKey="Shin, M" sort="Shin, M" uniqKey="Shin M" first="M." last="Shin">M. Shin</name><affiliation wicri:level="1"><mods:affiliation>Teru Biolaboratory, Mino‐shi, Osaka, Japan</mods:affiliation><country xml:lang="fr">Japon</country><wicri:regionArea>Teru Biolaboratory, Mino‐shi, Osaka</wicri:regionArea></affiliation></author></analytic><monogr></monogr><series><title level="j" type="main">Photochemistry and Photobiology</title><title level="j" type="alt">PHOTOCHEMISTRY PHOTOBIOLOGY</title><idno type="ISSN">0031-8655</idno><idno type="eISSN">1751-1097</idno><imprint><biblScope unit="vol">68</biblScope><biblScope unit="issue">3</biblScope><biblScope unit="page" from="319">319</biblScope><biblScope unit="page" to="322">322</biblScope><biblScope unit="page-count">4</biblScope><publisher>Blackwell Publishing Ltd</publisher><pubPlace>Oxford, UK</pubPlace><date type="published" when="1998-09">1998-09</date></imprint><idno type="ISSN">0031-8655</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0031-8655</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Ammonium sulfate</term><term>Chloroplast</term><term>Cyclobutane pyrimidine dimer</term><term>Dark repair</term><term>Data show</term><term>Deionized water</term><term>Dimer</term><term>Elisa</term><term>Elisa system</term><term>Fresh weight equivalent</term><term>Hexadecyltrimethylammonium bromide</term><term>Immunosorbent assay</term><term>Kobe</term><term>Kobe university</term><term>Model riken</term><term>Monoclonal antibodies</term><term>Photolyase</term><term>Photolyase preparation</term><term>Photolyase system</term><term>Photoproducts</term><term>Photorepair</term><term>Photorepair system</term><term>Pyrimidine</term><term>Pyrimidine pyrimidinone photoproducts</term><term>Reaction mixture</term><term>Spectral photon distribution</term><term>Spinach</term><term>Spinacia oleracea</term><term>Subsequent exposure</term><term>Total volume</term><term>White light</term></keywords><keywords scheme="Teeft" xml:lang="en"><term>Ammonium sulfate</term><term>Chloroplast</term><term>Cyclobutane pyrimidine dimer</term><term>Dark repair</term><term>Data show</term><term>Deionized water</term><term>Dimer</term><term>Elisa</term><term>Elisa system</term><term>Fresh weight equivalent</term><term>Hexadecyltrimethylammonium bromide</term><term>Immunosorbent assay</term><term>Kobe</term><term>Kobe university</term><term>Model riken</term><term>Monoclonal antibodies</term><term>Photolyase</term><term>Photolyase preparation</term><term>Photolyase system</term><term>Photoproducts</term><term>Photorepair</term><term>Photorepair system</term><term>Pyrimidine</term><term>Pyrimidine pyrimidinone photoproducts</term><term>Reaction mixture</term><term>Spectral photon distribution</term><term>Spinach</term><term>Spinacia oleracea</term><term>Subsequent exposure</term><term>Total volume</term><term>White light</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Ultraviolet‐B‐induced lesions and their photorepair in nuclear and chloroplast DNA of spinach (Spinacia oleracea L.) leaves were examined with two photoproducts, cyclobutane pyrimidine dimers (CPD) and pyrimidine (6‐4) pyrimidinone photoproducts (6‐4PP). These photoproducts were induced both in nuclear and chloroplast DNA by UVB irradiation and could be detected by enzyme‐linked immunosorbent assay using their respective monoclonal antibodies. Formation of CPD was greater in nuclear DNA than in chloroplast DNA (about 10 to 7), whereas 6‐4PP formation was comparable in both DNA. On subsequent exposure of leaves to blue/UVA after UVB irradiation, photorepair of CPD and 6‐4PP occurred in nuclear DNA but not in chloroplast DNA. When isolated chloroplasts were irradiated with UVB, CPD was also induced in their DNA. But photorepair of CPD did not occur in them by subsequent exposure to blue/UVA, suggesting that no photorepair system operates in chloroplasts.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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