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Peculiar properties of chlorophyll thermoluminescence emission of autotrophically or mixotrophically grown Chlamydomonas reinhardtii

 

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dc.creator Ducruet, Jean Marc R C es
dc.creator Serrano Delgado, Aurelio es
dc.creator Roncel Gil, Mercedes es
dc.creator Ortega Rodríguez, José María es
dc.date.accessioned 2019-04-02T11:29:51Z
dc.date.available 2019-04-02T11:29:51Z
dc.date.issued 2011
dc.identifier.citation Ducruet, J.M.R.C., Serrano Delgado, A., Roncel Gil, M. y Ortega Rodríguez, J.M. (2011). Peculiar properties of chlorophyll thermoluminescence emission of autotrophically or mixotrophically grown Chlamydomonas reinhardtii. Journal of Photochemistry and Photobiology B: Biology, 104 (1-2), 301-307.
dc.identifier.issn 1011-1344 es
dc.identifier.uri https://hdl.handle.net/11441/85058
dc.description.abstract The microalgae Chlamydomonas reinhardtii and Chlorella sp. CCAP 211/84 were grown autotrophically and mixotrophically and their thermoluminescence emissions were recorded above 0 °C after excitation by 1, 2 or 3 xenon flashes or by continuous far-red light. An oscillation of the B band intensity according to the number of flashes was always observed, with a maximum after 2 flashes, accompanied by a downshift of the B band temperature maximum in mixotrophic compared to autotrophic grown cells, indicative of a dark stable pH gradient. Moreover, new flash-induced bands emerged in mixotrophic Chlamydomonas grown cells, at temperatures higher than that of the B band. In contrast to the afterglow band observed in higher plants, in Chlamydomonas these bands were not inducible by far-red light, were fully suppressed by 2 μM antimycin A, and peaked at different temperatures depending on the flash number and growth stage, with higher temperature maxima in cells at a stationary compared to an exponential growth stage. These differences are discussed according to the particular properties of cyclic electron transfer pathways in C. reinhardtii. es
dc.description.sponsorship Ministerio de Educación y Cultura BFU2007-68107-C02-01/BMC es
dc.description.sponsorship Junta de Andalucía PAIDI CVI-261 es
dc.format application/pdf es
dc.language.iso eng es
dc.publisher Elsevier es
dc.relation.ispartof Journal of Photochemistry and Photobiology B: Biology, 104 (1-2), 301-307.
dc.rights Attribution-NonCommercial-NoDerivatives 4.0 Internacional *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/4.0/ *
dc.subject Thermoluminescence es
dc.subject Microalga es
dc.subject Cyclic electron flow es
dc.subject Photosystem II es
dc.subject Chlororespiration es
dc.title Peculiar properties of chlorophyll thermoluminescence emission of autotrophically or mixotrophically grown Chlamydomonas reinhardtii es
dc.type info:eu-repo/semantics/article es
dc.type.version info:eu-repo/semantics/acceptedVersion es
dc.rights.accessrights info:eu-repo/semantics/openAccess es
dc.contributor.affiliation Universidad de Sevilla. Departamento de Bioquímica Vegetal y Biología Molecular es
dc.relation.projectID BFU2007-68107-C02-01/BMC es
dc.relation.projectID PAIDI CVI-261 es
dc.relation.publisherversion https://doi.org/10.1016/j.jphotobiol.2011.02.014 es
dc.identifier.doi 10.1016/j.jphotobiol.2011.02.014 es
idus.format.extent 7 p. es
dc.journaltitle Journal of Photochemistry and Photobiology B: Biology es
dc.publication.volumen 104 es
dc.publication.issue 1-2 es
dc.publication.initialPage 301 es
dc.publication.endPage 307 es
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