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| Content Provider | Springer Nature Link |
|---|---|
| Author | Yokthongwattana, Kittisak Sriariyanun, Malinee Ekaratcharoenchai, Pallop Svasti, Jisnuson |
| Copyright Year | 2009 |
| Abstract | It has been previously reported that a considerable amount of lutein and zeaxanthin could be fractionated, upon mild detergent treatment, from the thylakoid membranes of irradiance-stressed unicellular green alga, Dunaliella salina, into a yellow pellet fraction. Such membrane pellet was found to be devoid of chlorophylls and any known proteins of photosynthesis but rather contained a significant amount of unknown polypeptides. It was speculated that this xanthophyll-rich membrane pellet might originate from incomplete solubilization of the photoinhibited thylakoids by weak surfactants, due to extra rigidity imposed by the xanthophylls being directly imbedded into the lipid bilayer. In this study, we further characterized this membrane fraction by studying its associated proteins and fatty acid composition. Analysis by gas chromatography–mass spectrometry indicated that this yellow pellet membrane was enriched in saturated fatty acids, supporting the rigidity notion of the pellet. Protein identification by MALDI-TOF MS further revealed that at least 20 water-soluble proteins were found in association with this pellet. These proteins may originate from unspecific contamination of abundant polypeptides co-precipitated with the membrane upon fractionation. Possible explanations regarding the nature of this xanthophyll-rich membrane are also discussed. |
| Starting Page | 147 |
| Ending Page | 155 |
| Page Count | 9 |
| File Format | |
| ISSN | 09218971 |
| Journal | Journal of Applied Phycology |
| Volume Number | 22 |
| Issue Number | 2 |
| e-ISSN | 15735176 |
| Language | English |
| Publisher | Springer Netherlands |
| Publisher Date | 2009-05-01 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Dunaliella salina Irradiance stress Membrane fractionation Xanthophyll Zeaxanthin Ecology Plant Physiology Freshwater & Marine Ecology Plant Sciences |
| Content Type | Text |
| Resource Type | Article |
| Subject | Plant Science Aquatic Science |
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