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Article: Salt-induced alterations in lipid composition of diatom Nitzschia laevis (Bacillariophyceae) under heterotrophic culture condition

TitleSalt-induced alterations in lipid composition of diatom Nitzschia laevis (Bacillariophyceae) under heterotrophic culture condition
Authors
KeywordsEicosapentaenoic Acid
Fatty Acid
Lipid
Nitzschia Laevis
Salinity
Issue Date2008
PublisherBlackwell Publishing, Inc. The Journal's web site is located at http://www.blackwellpublishing.com/journals/JPY
Citation
Journal Of Phycology, 2008, v. 44 n. 5, p. 1309-1314 How to Cite?
AbstractThe diatom Nitzschia laevis Hust. is a potential producer of eicosapentaenoic acid (EPA). To elucidate its cellular response to salt stress, the effects of salinity on EPA production, lipid composition, and fatty acid distribution in the lipid pool were investigated. The highest contents of total fatty acids, EPA, and polar lipids were all obtained at NaCl of 20 g·L-1, under which 71.3% of total EPA existed in polar lipid fractions. In N. laevis, high salt concentration might induce the decrease in neutral lipids (NLs), whereas the production of polar lipids, including phospholipids (PLs) and glycolipids (GLs), was enhanced. The degree of fatty acid unsaturation of both neutral and polar lipid fractions increased sharply when NaCl concentration increased from 10 to 20 g·L-1 but decreased at NaCl concentration of 30 g·L-1. The amount of total free sterols was increased with the increase in salt concentration. All these changes in lipid and fatty acids suggested a decrease in membrane permeability and fluidity under high salt concentration, which could help the alga acclimate to the salinity stress. © 2008 Phycological Society of America.
Persistent Identifierhttp://hdl.handle.net/10722/179090
ISSN
2015 Impact Factor: 2.536
2015 SCImago Journal Rankings: 1.314
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorChen, GQen_US
dc.contributor.authorJiang, Yen_US
dc.contributor.authorChen, Fen_US
dc.date.accessioned2012-12-19T09:51:53Z-
dc.date.available2012-12-19T09:51:53Z-
dc.date.issued2008en_US
dc.identifier.citationJournal Of Phycology, 2008, v. 44 n. 5, p. 1309-1314en_US
dc.identifier.issn0022-3646en_US
dc.identifier.urihttp://hdl.handle.net/10722/179090-
dc.description.abstractThe diatom Nitzschia laevis Hust. is a potential producer of eicosapentaenoic acid (EPA). To elucidate its cellular response to salt stress, the effects of salinity on EPA production, lipid composition, and fatty acid distribution in the lipid pool were investigated. The highest contents of total fatty acids, EPA, and polar lipids were all obtained at NaCl of 20 g·L-1, under which 71.3% of total EPA existed in polar lipid fractions. In N. laevis, high salt concentration might induce the decrease in neutral lipids (NLs), whereas the production of polar lipids, including phospholipids (PLs) and glycolipids (GLs), was enhanced. The degree of fatty acid unsaturation of both neutral and polar lipid fractions increased sharply when NaCl concentration increased from 10 to 20 g·L-1 but decreased at NaCl concentration of 30 g·L-1. The amount of total free sterols was increased with the increase in salt concentration. All these changes in lipid and fatty acids suggested a decrease in membrane permeability and fluidity under high salt concentration, which could help the alga acclimate to the salinity stress. © 2008 Phycological Society of America.en_US
dc.languageengen_US
dc.publisherBlackwell Publishing, Inc. The Journal's web site is located at http://www.blackwellpublishing.com/journals/JPYen_US
dc.relation.ispartofJournal of Phycologyen_US
dc.subjectEicosapentaenoic Aciden_US
dc.subjectFatty Aciden_US
dc.subjectLipiden_US
dc.subjectNitzschia Laevisen_US
dc.subjectSalinityen_US
dc.titleSalt-induced alterations in lipid composition of diatom Nitzschia laevis (Bacillariophyceae) under heterotrophic culture conditionen_US
dc.typeArticleen_US
dc.identifier.emailChen, F: sfchen@hku.hken_US
dc.identifier.authorityChen, F=rp00672en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1111/j.1529-8817.2008.00565.xen_US
dc.identifier.scopuseid_2-s2.0-53549117437en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-53549117437&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume44en_US
dc.identifier.issue5en_US
dc.identifier.spage1309en_US
dc.identifier.epage1314en_US
dc.identifier.isiWOS:000259866800022-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridChen, GQ=13406780100en_US
dc.identifier.scopusauthoridJiang, Y=24605346600en_US
dc.identifier.scopusauthoridChen, F=7404907980en_US
dc.identifier.citeulike3394472-

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