Please use this identifier to cite or link to this item:
http://hdl.handle.net/10773/22812
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Malpartida, I. | pt |
dc.contributor.author | Jerez, C. G. | pt |
dc.contributor.author | Morales, M. M. | pt |
dc.contributor.author | Nascimento, P. | pt |
dc.contributor.author | Freire, I. | pt |
dc.contributor.author | Ezequiel, J. | pt |
dc.contributor.author | Rico, R. M. | pt |
dc.contributor.author | Peralta, E. | pt |
dc.contributor.author | Malapascua, J. R. | pt |
dc.contributor.author | Florez, Y. | pt |
dc.contributor.author | Masojidek, J. | pt |
dc.contributor.author | Abdala, R. | pt |
dc.contributor.author | Figueroa, F. L. | pt |
dc.contributor.author | Navarro, E. | pt |
dc.date.accessioned | 2018-04-06T15:46:52Z | - |
dc.date.available | 2018-04-06T15:46:52Z | - |
dc.date.issued | 2014 | - |
dc.identifier.issn | 1864-7782 | pt |
dc.identifier.uri | http://hdl.handle.net/10773/22812 | - |
dc.description.abstract | This study assessed the interactive effects of UVR and nutrient depletion on Chlorella fusca cultures on the production and accumulation of particular biomolecules. To accomplish this, algae were grown for 5 d in outdoor thin-layer cascade cultivators under 3 nutrient treatments (full nutrients, -N and -S) and then transferred to outdoor cylindrical photobiore-actors for another 5 d. Cultures were then exposed to full solar radiation (PAB) and decreased UVR. During the last 5 d, bio-optical properties, photosynthetic activity, pigments, biochemical composition and oxidative stress were assessed. Initially, nutrient depletion caused changes in productivity and cell number in a manner that affected biochemical composition. After 3 d, the percentage of lipids in the cultures under N deprivation reached values appropriate for being used as feed or food additives or for energy applications (35% of lipid content), regardless of the light conditions. A longer exposure (5 d) resulted in interactive effects of light and nutrient conditions. Specifically, PAB increased lipid content in all cases (1.3- to 2.3-fold), but particularly under S deprivation. Longer exposure to PAB also increased oxidative stress in UVR and nutrient-limited treatments (-N and -S). These results showed that the benefits expected from nutrient depletion (increase in biomolecule content e.g. lipids, carbohydrates and pigments) were modulated by the negative effects of algal UVR acclimation costs. | pt |
dc.language.iso | eng | pt |
dc.publisher | Inter Research | pt |
dc.relation | CTM2011-15659-E | pt |
dc.relation | BFU2010-22053 | pt |
dc.rights | openAccess | por |
dc.subject | Bio-optic | pt |
dc.subject | Biochemical composition | pt |
dc.subject | Chlorella fusca | pt |
dc.subject | In vivo chlorophyll fluorescence | pt |
dc.subject | Lipid peroxidation | pt |
dc.subject | Lipids | pt |
dc.subject | Photosynthetic pigments | pt |
dc.subject | Proteins | pt |
dc.subject | UV radiation | pt |
dc.title | Synergistic effect of UV radiation and nutrient limitation on chlorella fusca (Chlorophyta) cultures grown in outdoor cylindrical photobioreactors | pt |
dc.type | article | pt |
dc.peerreviewed | yes | pt |
ua.distribution | international | pt |
degois.publication.firstPage | 141 | pt |
degois.publication.lastPage | 158 | pt |
degois.publication.title | Aquatic Biology | pt |
degois.publication.volume | 22 | pt |
dc.identifier.doi | 10.3354/ab00595 | pt |
Appears in Collections: | CESAM - Artigos DBio - Artigos |
Files in This Item:
File | Description | Size | Format | |
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Malpartida et al. - 2014 - Synergistic effect of UV radiation and nutrient li.pdf | 512.74 kB | Adobe PDF | View/Open |
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