Lipid content in 19 brackish and marine microalgae:Influence of growth phase, salinity and temperature
| Autor: | Arho Virkki, Kirsi-Marja Oksman-Caldentey, Timo Tamminen, Heiko Rischer, Dagmar Schwenk, Jukka Seppälä, Kristian Spilling |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
0106 biological sciences
chemistry.chemical_element Aquatic Science Biology 01 natural sciences salinity 03 medical and health sciences lipid Botany Phytoplankton Ecosystem 14. Life underwater Food science SDG 14 - Life Below Water Ecology Evolution Behavior and Systematics 030304 developmental biology Trophic level chemistry.chemical_classification 0303 health sciences Brackish water 010604 marine biology & hydrobiology microalgae Fatty acid temperature Nitrogen Food web Salinity chemistry fatty acid growth phase |
| Zdroj: | Schwenk, D, Seppälä, J, Spilling, K, Virkki, A, Tamminen, T, Oksman-Caldentey, K-M & Rischer, H 2013, ' Lipid content in 19 brackish and marine microalgae : Influence of growth phase, salinity and temperature ', Aquatic Ecology, vol. 47, no. 4, pp. 415-424 . https://doi.org/10.1007/s10452-013-9454-z Aquatic Ecology |
| DOI: | 10.1007/s10452-013-9454-z |
| Popis: | Algal lipids provide essential fatty acids for higher trophic levels in the marine food web, and understanding the fatty acid composition in phytoplankton is critical for evaluating its value as a diet. Nineteen microalgal species, mainly originating from the Baltic Sea, covering major algal classes were grown in different growth conditions. Samples were taken during both the exponential and stationary growth phases and analysed regarding their fatty acid methyl esters and free fatty acids. Our results show that across all screened species, total fatty acids increased significantly from exponential to stationary growth phase. Furthermore, it was observed that warm-water species contained more lipids and differed in their lipid profile as compared with the cold-water species. Brackish water species also showed a slightly higher lipid content than the marine species, but their lipid profile was not significantly different. Plotting changes in lipids against changes in cell nitrogen revealed a significant dependency between decrease in cell nitrogen and increase in lipids across all tested species. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|