FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2056285407> ?p ?o ?g. }

• W2056285407 endingPage "164" @default.
• W2056285407 startingPage "155" @default.
• W2056285407 abstract "The illumination of isolated Photosystem II (PS II) reaction centres in the presence of the artificial electron acceptors, silicomolybdate (SiMo) and 2,5-dibromo-3-methyl-6-isopropyl-p-benzoquinone (DBMIB) leads to the irreversible bleaching of β-carotene. The bleaching is biphasic with approx. 50% of the carotenoid being bleached rapidly and the remainder more slowly. This is attributed to the sequential bleaching of the two β-carotenes contained in the isolated complex, due to oxidation by the primary oxidant, P680+. Using SiMo as electron acceptor we found that only when all the β-carotene is irreversibly bleached does further illumination induce a loss of electron transfer activity. This rate of loss is exacerbated by the presence of oxygen. In addition to β-carotene degradation there is also, under the same conditions, an irreversible bleaching of chlorophyll absorbing at 670 nm. It is proposed therefore that β-carotene and chlorophyll 670 contained in the reaction centre protect against deleterious effects due to the photoaccumulation of the highly oxidising P680+ state by acting as electron donors. Comparison of the spectra of the normal 2 β-carotene and a 1 β-carotene containing preparation of the PS II reaction centre indicates that in the former these two carotenoids are excitonically coupled. The excitonic coupling allows a more rapid initial rate of electron donation by the β-carotene to P680+, than is seen in the preparation with only one carotenoid." @default.
• W2056285407 created "2016-06-24" @default.
• W2056285407 creator A5028319294 @default.
• W2056285407 creator A5084770324 @default.
• W2056285407 creator A5090598948 @default.
• W2056285407 date "1993-04-01" @default.
• W2056285407 modified "2023-09-25" @default.
• W2056285407 title "Two coupled β-carotene molecules protect P680 from photodamage in isolated Photosystem II reaction centres" @default.
• W2056285407 cites W116253160 @default.
• W2056285407 cites W1263900892 @default.
• W2056285407 cites W1605875058 @default.
• W2056285407 cites W1932457428 @default.
• W2056285407 cites W1970758053 @default.
• W2056285407 cites W1974907033 @default.
• W2056285407 cites W1978883037 @default.
• W2056285407 cites W1992551363 @default.
• W2056285407 cites W1995263137 @default.
• W2056285407 cites W2013005248 @default.
• W2056285407 cites W2022623396 @default.
• W2056285407 cites W2025024286 @default.
• W2056285407 cites W2027429144 @default.
• W2056285407 cites W2029350622 @default.
• W2056285407 cites W2029930818 @default.
• W2056285407 cites W2029952514 @default.
• W2056285407 cites W2030136365 @default.
• W2056285407 cites W2033049943 @default.
• W2056285407 cites W2034912163 @default.
• W2056285407 cites W2037264486 @default.
• W2056285407 cites W2038233588 @default.
• W2056285407 cites W2044240560 @default.
• W2056285407 cites W2046049921 @default.
• W2056285407 cites W2054180019 @default.
• W2056285407 cites W2054484786 @default.
• W2056285407 cites W2054924159 @default.
• W2056285407 cites W2065510140 @default.
• W2056285407 cites W2068408432 @default.
• W2056285407 cites W2072531896 @default.
• W2056285407 cites W2079213338 @default.
• W2056285407 cites W2081183409 @default.
• W2056285407 cites W2083355653 @default.
• W2056285407 cites W2088696328 @default.
• W2056285407 cites W2092947620 @default.
• W2056285407 cites W2095226607 @default.
• W2056285407 doi "https://doi.org/10.1016/0005-2728(93)90097-y" @default.
• W2056285407 hasPublicationYear "1993" @default.
• W2056285407 type Work @default.
• W2056285407 sameAs 2056285407 @default.
• W2056285407 citedByCount "101" @default.
• W2056285407 countsByYear W20562854072012 @default.
• W2056285407 countsByYear W20562854072014 @default.
• W2056285407 countsByYear W20562854072015 @default.
• W2056285407 countsByYear W20562854072016 @default.
• W2056285407 countsByYear W20562854072022 @default.
• W2056285407 crossrefType "journal-article" @default.
• W2056285407 hasAuthorship W2056285407A5028319294 @default.
• W2056285407 hasAuthorship W2056285407A5084770324 @default.
• W2056285407 hasAuthorship W2056285407A5090598948 @default.
• W2056285407 hasConcept C123669783 @default.
• W2056285407 hasConcept C154828652 @default.
• W2056285407 hasConcept C161790260 @default.
• W2056285407 hasConcept C177499756 @default.
• W2056285407 hasConcept C178790620 @default.
• W2056285407 hasConcept C183688256 @default.
• W2056285407 hasConcept C185592680 @default.
• W2056285407 hasConcept C188231169 @default.
• W2056285407 hasConcept C2776373379 @default.
• W2056285407 hasConcept C2776998673 @default.
• W2056285407 hasConcept C2778148179 @default.
• W2056285407 hasConcept C2778902199 @default.
• W2056285407 hasConcept C2779539529 @default.
• W2056285407 hasConcept C28781525 @default.
• W2056285407 hasConcept C2900893 @default.
• W2056285407 hasConcept C55493867 @default.
• W2056285407 hasConcept C75473681 @default.
• W2056285407 hasConcept C80298142 @default.
• W2056285407 hasConceptScore W2056285407C123669783 @default.
• W2056285407 hasConceptScore W2056285407C154828652 @default.
• W2056285407 hasConceptScore W2056285407C161790260 @default.
• W2056285407 hasConceptScore W2056285407C177499756 @default.
• W2056285407 hasConceptScore W2056285407C178790620 @default.
• W2056285407 hasConceptScore W2056285407C183688256 @default.
• W2056285407 hasConceptScore W2056285407C185592680 @default.
• W2056285407 hasConceptScore W2056285407C188231169 @default.
• W2056285407 hasConceptScore W2056285407C2776373379 @default.
• W2056285407 hasConceptScore W2056285407C2776998673 @default.
• W2056285407 hasConceptScore W2056285407C2778148179 @default.
• W2056285407 hasConceptScore W2056285407C2778902199 @default.
• W2056285407 hasConceptScore W2056285407C2779539529 @default.
• W2056285407 hasConceptScore W2056285407C28781525 @default.
• W2056285407 hasConceptScore W2056285407C2900893 @default.
• W2056285407 hasConceptScore W2056285407C55493867 @default.
• W2056285407 hasConceptScore W2056285407C75473681 @default.
• W2056285407 hasConceptScore W2056285407C80298142 @default.
• W2056285407 hasIssue "1-2" @default.
• W2056285407 hasLocation W20562854071 @default.
• W2056285407 hasOpenAccess W2056285407 @default.
• W2056285407 hasPrimaryLocation W20562854071 @default.
• W2056285407 hasRelatedWork W2015462295 @default.

• next