Zoeken
Zoeken kan via de modus 'eenvoudig zoeken' (één veld) of uitgebreid via 'geavanceerd zoeken' (meerdere velden). Zo kan je bv. zoeken op een combinatie van een auteursnaam (auteur), een jaartal (jaar) en een documenttype.
Boekenmand
Nuttige resultaten kan je aanvinken en toevoegen aan een mandje. De inhoud hiervan kan je exporteren of afdrukken (naar bv. PDF).
RSS
Op de hoogte blijven van nieuw toegevoegde publicaties binnen uw interessegebied? Dit kan door een RSS-feed (?) te maken van jouw zoekopdracht.
nieuwe zoekopdracht
UVR and PAR absorbing compounds of marine brown macroalgae along a latitudinal gradient of the Brazilian coast
Schmitz, C.; Ramlov, F.; de Lucena, L.A.F.; Batista, M.B.; Sissini, M.N.; Oliveira, I.; Briani, B.; Martins, C.D.L.; Nunes, J.M.C.; Rörig, L.; Horta, P.A.; Figueroa, F.L.; Korbee, N.; Maraschin, M.; Bonomi-Barufi, J. (2018). UVR and PAR absorbing compounds of marine brown macroalgae along a latitudinal gradient of the Brazilian coast. Journal of Photochemistry and Photobiology B-Biology 178: 165-174. https://dx.doi.org/10.1016/j.jphotobiol.2017.10.029
In: Journal of Photochemistry and Photobiology B-Biology. ELSEVIER SCIENCE SA: Lausanne. ISSN 1011-1344
|  |
| Trefwoorden |
Phaeophyceae [WoRMS]
Marien/Kust |
| Author keywords |
Brown algae; Radiation; Screening; UV–VIS; Spectrophotometer |
| Auteurs | | Top |
- Schmitz, C.
- Ramlov, F.
- de Lucena, L.A.F.
- Uarrota, V., illustrator
- Batista, M.B.
- Sissini, M.N.
|
- Oliveira, I.
- Briani, B.
- Martins, C.D.L.
- Nunes, J.M.C.
- Rörig, L.
|
- Horta, P.A.
- Figueroa, F.L.
- Korbee, N.
- Maraschin, M.
- Bonomi-Barufi, J.
|
| Abstract |
Absorption spectra are indicative of biological sample chemical composition and can be used as a basis for the construction of descriptive and predictive models for biotechnological screening or assays. In marine algae, chemical composition can vary due to species-specific differences in biochemistry, as well as intra-specific responses to unique environmental variables. Different indices (UVCi, UVB + Ai and PARi) were proposed and calculated to evaluate how photoprotective compounds vary in 18 species of Phaeophyceae. In addition, they were correlated to abiotic factors. Through this technique, seven main peaks were detected in the absorbing spectra of marine brown algal extracts. The highest photoprotective indices values were found in species collected in tropical areas, where higher solar radiation is observed compared to the southern Brazilian coast. Considering additional abiotic factors, water temperature and nitrate concentration were negatively correlated with UV indices. PARi's indices were positively affected by nitrate. All species collected on the Brazilian coast have absorption peaks in the region of phenolic compounds and carotenoids, suggesting that tropical marine brown macroalgae may have developed an effective antioxidant defense system, suggesting adaptation to environments characterized by high solar radiation. UVR/PAR indices congregated essential information to possible future biotechnological screening, facilitating selection of high priority species or sites, fostering actions to enhance alternative sustainable management strategies of coastal environments. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
