Matches in SemOpenAlex for { <https://semopenalex.org/work/W2032149384> ?p ?o ?g. }
- W2032149384 endingPage "92" @default.
- W2032149384 startingPage "86" @default.
- W2032149384 abstract "The long-term effects of white, blue and red light on carbon metabolism of Porphyra leucosticta have been studied in relation to light absorption, photosynthetic performance, organic carbon release and growth. Light absorption showed a wavelength-specific increase, especially in the acclimation to the blue part of the spectrum. The total amount of absorbed photons was similar for blue and white light and much higher than red light treatment at the end of the experiment. The optimal quantum yield (Fv/Fm) was not affected by the treatments but under blue light photosynthetic race (measured as O2 evolution) was always lower in comparison with white and red light, despite the increase in absorption and photosynthesis observed after 14 days of acclimation to blue light. The operational quantum requirement for O2 evolution (QR′) was 41 mol absorbed photons mol−1 O2 in blue light, almost double that of the QR′ values for white and red light. The uncoupling between absorption and oxygen production seems to be located in the water hydrolysis step, since only 28% of the excitons reaching the reaction centres promoted water hydrolysis. This is probably caused by a little overlap of photosystems II and I under blue light. However, differences in photosynthesis were not enough to explain the observed growth rates. Biomass production under blue light was much lower than under white and red light. A low efficiency in the investment of the assimilated carbon into new biomass is pointed out, since blue light-grown thalli showed high rates of organic carbon release to the external medium (up to 63% of assimilated C, disregarding respiration), while for white and red light-grown thalli the organic carbon release accounted for about 30%. The total amount of heterosides (floridoside, L-isofloridoside and D-isofloridoside) accumulated in the cell was 122 μmol g−1 dry wt. under blue light, and 385 and 447 under white and red light, respectively. These concentrations correlated with growth race. As observed with the results, the effect of white light was a combination of blue and red light. We suggest that the effect of light quality on the growth rate of P. leucosticta involves both the photosynthetic performance and the capability to maintain assimilated C inside the cell under each spectral band, and is mediated by changes in the accumulation of the main photosynthetic products, namely the heterosides." @default.
- W2032149384 created "2016-06-24" @default.
- W2032149384 creator A5014423333 @default.
- W2032149384 creator A5022259173 @default.
- W2032149384 creator A5024207296 @default.
- W2032149384 creator A5032831573 @default.
- W2032149384 creator A5070577628 @default.
- W2032149384 creator A5081132368 @default.
- W2032149384 date "2000-07-01" @default.
- W2032149384 modified "2023-10-15" @default.
- W2032149384 title "Light quality effect on photosynthesis and efficiency of carbon assimilation in the red alga Porphyra leucosticta" @default.
- W2032149384 cites W1582492995 @default.
- W2032149384 cites W1964719461 @default.
- W2032149384 cites W1969489055 @default.
- W2032149384 cites W1975892234 @default.
- W2032149384 cites W1976085273 @default.
- W2032149384 cites W1984858429 @default.
- W2032149384 cites W1989537894 @default.
- W2032149384 cites W1991621031 @default.
- W2032149384 cites W1995045749 @default.
- W2032149384 cites W1997650202 @default.
- W2032149384 cites W2001337441 @default.
- W2032149384 cites W2002135951 @default.
- W2032149384 cites W2008067070 @default.
- W2032149384 cites W2009143422 @default.
- W2032149384 cites W2015909358 @default.
- W2032149384 cites W2016329476 @default.
- W2032149384 cites W2022052640 @default.
- W2032149384 cites W2026646008 @default.
- W2032149384 cites W2045840271 @default.
- W2032149384 cites W2047340196 @default.
- W2032149384 cites W2059063836 @default.
- W2032149384 cites W2059327850 @default.
- W2032149384 cites W2067451002 @default.
- W2032149384 cites W2073286059 @default.
- W2032149384 cites W2117698682 @default.
- W2032149384 cites W2122932670 @default.
- W2032149384 cites W2126646508 @default.
- W2032149384 cites W2139328338 @default.
- W2032149384 cites W2144706470 @default.
- W2032149384 cites W2154070613 @default.
- W2032149384 cites W2167015284 @default.
- W2032149384 cites W2167928848 @default.
- W2032149384 cites W2171280987 @default.
- W2032149384 cites W2173560411 @default.
- W2032149384 cites W2182431427 @default.
- W2032149384 cites W2442110882 @default.
- W2032149384 doi "https://doi.org/10.1016/s0176-1617(00)80140-6" @default.
- W2032149384 hasPublicationYear "2000" @default.
- W2032149384 type Work @default.
- W2032149384 sameAs 2032149384 @default.
- W2032149384 citedByCount "30" @default.
- W2032149384 countsByYear W20321493842014 @default.
- W2032149384 countsByYear W20321493842015 @default.
- W2032149384 countsByYear W20321493842018 @default.
- W2032149384 countsByYear W20321493842019 @default.
- W2032149384 countsByYear W20321493842020 @default.
- W2032149384 countsByYear W20321493842021 @default.
- W2032149384 countsByYear W20321493842022 @default.
- W2032149384 countsByYear W20321493842023 @default.
- W2032149384 crossrefType "journal-article" @default.
- W2032149384 hasAuthorship W2032149384A5014423333 @default.
- W2032149384 hasAuthorship W2032149384A5022259173 @default.
- W2032149384 hasAuthorship W2032149384A5024207296 @default.
- W2032149384 hasAuthorship W2032149384A5032831573 @default.
- W2032149384 hasAuthorship W2032149384A5070577628 @default.
- W2032149384 hasAuthorship W2032149384A5081132368 @default.
- W2032149384 hasConcept C119406331 @default.
- W2032149384 hasConcept C125564181 @default.
- W2032149384 hasConcept C135473242 @default.
- W2032149384 hasConcept C147789679 @default.
- W2032149384 hasConcept C17525397 @default.
- W2032149384 hasConcept C183688256 @default.
- W2032149384 hasConcept C185592680 @default.
- W2032149384 hasConcept C2986477067 @default.
- W2032149384 hasConcept C52859227 @default.
- W2032149384 hasConcept C59822182 @default.
- W2032149384 hasConcept C6929264 @default.
- W2032149384 hasConcept C75473681 @default.
- W2032149384 hasConcept C86803240 @default.
- W2032149384 hasConceptScore W2032149384C119406331 @default.
- W2032149384 hasConceptScore W2032149384C125564181 @default.
- W2032149384 hasConceptScore W2032149384C135473242 @default.
- W2032149384 hasConceptScore W2032149384C147789679 @default.
- W2032149384 hasConceptScore W2032149384C17525397 @default.
- W2032149384 hasConceptScore W2032149384C183688256 @default.
- W2032149384 hasConceptScore W2032149384C185592680 @default.
- W2032149384 hasConceptScore W2032149384C2986477067 @default.
- W2032149384 hasConceptScore W2032149384C52859227 @default.
- W2032149384 hasConceptScore W2032149384C59822182 @default.
- W2032149384 hasConceptScore W2032149384C6929264 @default.
- W2032149384 hasConceptScore W2032149384C75473681 @default.
- W2032149384 hasConceptScore W2032149384C86803240 @default.
- W2032149384 hasIssue "1" @default.
- W2032149384 hasLocation W20321493841 @default.
- W2032149384 hasOpenAccess W2032149384 @default.
- W2032149384 hasPrimaryLocation W20321493841 @default.
- W2032149384 hasRelatedWork W128234715 @default.