dc.contributor.author | Røkke, Gunvor | |
dc.contributor.author | Melø, Thor Bernt | |
dc.contributor.author | Hohmann-Marriott, Martin Frank | |
dc.date.accessioned | 2017-11-28T09:43:27Z | |
dc.date.available | 2017-11-28T09:43:27Z | |
dc.date.created | 2017-11-06T16:00:38Z | |
dc.date.issued | 2017 | |
dc.identifier.citation | PLoS ONE. 2017, 12 (4): e0175184. | nb_NO |
dc.identifier.issn | 1932-6203 | |
dc.identifier.uri | http://hdl.handle.net/11250/2468198 | |
dc.description.abstract | The lipid-producing model alga Nannochloropsis oceanica has a distinct photosynthetic machinery. This organism possesses chlorophyll a as its only chlorophyll species, and has a high ratio of PSI to PSII. This high ratio of PSI to PSII may affect the redox state of the plastoquinone pool during exposure to light, and consequently may play a role in activating photoprotection mechanisms. We utilized pulse-amplitude modulated fluorometry to investigate the redox state of the plastoquinone pool during and after bright light pulses. Our data indicate that even very intense (5910 μmol photons s-1m-2 of blue light having a wavelength of 440 nm) light pulses of 0.8 second duration are not sufficient to completely reduce the plastoquinone pool in Nannochloropsis. In order to achieve extensive reduction of the plastoquinone pool by bright light pulses, anaerobic conditions or an inhibitor of the photosynthetic electron transport chain has to be utilized. The implication of this finding for the application of the widely used saturating pulse method in algae is discussed. | nb_NO |
dc.language.iso | eng | nb_NO |
dc.publisher | Public Library of Science | nb_NO |
dc.rights | Navngivelse 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/deed.no | * |
dc.title | The plastoquinone pool of Nannochloropsis oceanica is not completely reduced during bright light pulses | nb_NO |
dc.type | Journal article | nb_NO |
dc.type | Peer reviewed | nb_NO |
dc.description.version | publishedVersion | nb_NO |
dc.source.volume | 12 | nb_NO |
dc.source.journal | PLoS ONE | nb_NO |
dc.source.issue | 4 | nb_NO |
dc.identifier.doi | 10.1371/journal.pone.0175184 | |
dc.identifier.cristin | 1511540 | |
dc.description.localcode | © 2017 Røkke et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. | nb_NO |
cristin.unitcode | 194,66,15,0 | |
cristin.unitcode | 194,66,20,0 | |
cristin.unitname | Institutt for bioteknologi og matvitenskap | |
cristin.unitname | Institutt for fysikk | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |