Počet záznamů: 1
Light-induced dissociation of antenna complexes in the symbionts of scleractinian corals correlates with sensitivity to coral bleaching
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SYSNO ASEP 0390056 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Light-induced dissociation of antenna complexes in the symbionts of scleractinian corals correlates with sensitivity to coral bleaching Tvůrce(i) Hill, R. (AU)
Larkum, A. W. D. (AU)
Prášil, Ondřej (MBU-M) RID, ORCID
Kramer, D. M. (US)
Szabó, M. (AU)
Kumar, V. (AU)
Ralph, P. J. (AU)Zdroj.dok. Coral Reefs - ISSN 0722-4028
Roč. 31, č. 4 (2012), s. 963-975Poč.str. 13 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova Photoprotection ; Non-photochemical quenching ; Xanthophyll cycle Vědní obor RIV EE - Mikrobiologie, virologie CEP IAA601410907 GA AV ČR - Akademie věd ED2.1.00/03.0110 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Institucionální podpora MBU-M - RVO:61388971 UT WOS 000310999300006 DOI 10.1007/s00338-012-0914-z Anotace Elevated temperatures in combination with moderate to high irradiance are known to cause bleaching events in scleractinian corals, characterised by damage to photosystem II (PSII). Photoprotective mechanisms of the symbiont can reduce the excitation pressure impinging upon PSII. In the bleaching sensitive species, Acropora millepora and Pocillopora damicornis, high light alone induced photoprotection through the xanthophyll cycle, increased content of the antioxidant carotenoid, beta-carotene, as well as the dissociation of the light-harvesting chlorophyll complexes. The evidence is compatible with either the membrane-bound chlorophyll a-chlorophyll c (2)-peridinin-protein (acpPC) complex or the peripheral peridinin-chlorophyll-protein complex, or both, disconnecting from PSII under high light. The acpPC complex potentially showed a state transition response with redistribution towards photosystem I to reduce PSII over-excitation. This apparent acpPC dissociation/reassociation was promoted by the addition of the xanthophyll cycle inhibitor, dithiothreitol, under high irradiance Pracoviště Mikrobiologický ústav Kontakt Eliška Spurná, eliska.spurna@biomed.cas.cz, Tel.: 241 062 231 Rok sběru 2013
Počet záznamů: 1