9067
2016
2016
eng
1
13
7
article
Frontiers Media
Lausanne
1
--
2016-03-16
--
Light-Induced Changes in Fatty Acid Profiles of Specific Lipid Classes in Several Freshwater Phytoplankton Species
We tested the influence of two light intensities [40 and 300 μmol PAR / (m2s)] on the fatty acid composition of three distinct lipid classes in four freshwater phytoplankton species. We chose species of different taxonomic classes in order to detect potentially similar reaction characteristics that might also be present in natural phytoplankton communities. From samples of the bacillariophyte Asterionella formosa, the chrysophyte Chromulina sp., the cryptophyte Cryptomonas ovata and the zygnematophyte Cosmarium botrytis we first separated glycolipids (monogalactosyldiacylglycerol, digalactosyldiacylglycerol, and sulfoquinovosyldiacylglycerol), phospholipids (phosphatidylcholine, phosphatidylethanolamine, phosphatidylglycerol, phosphatidylinositol, and phosphatidylserine) as well as non-polar lipids (triacylglycerols), before analyzing the fatty acid composition of each lipid class. High variation in the fatty acid composition existed among different species. Individual fatty acid compositions differed in their reaction to changing light intensities in the four species. Although no generalizations could be made for species across taxonomic classes, individual species showed clear but small responses in their ecologically-relevant omega-3 and omega-6 polyunsaturated fatty acids (PUFA) in terms of proportions and of per tissue carbon quotas. Knowledge on how lipids like fatty acids change with environmental or culture conditions is of great interest in ecological food web studies, aquaculture, and biotechnology, since algal lipids are the most important sources of omega-3 long-chain PUFA for aquatic and terrestrial consumers, including humans.
Frontiers in plant science : FPLS
10.3389/fpls.2016.00264
1664-462X
Universität Potsdam, Publikationsfonds
PA 2016_10
1531.15
online registration
264
<a href="http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-90682">Zweitveröffentlichung in der Schriftenreihe Postprints der Universität Potsdam : Mathematisch Naturwissenschaftliche Reihe ; 223</a>
CC-BY - Namensnennung 4.0 International
Alexander Wacker
Maike Piepho
John L. Harwood
Irina A. Guschina
Michael T. Arts
eng
uncontrolled
freshwater algae
eng
uncontrolled
light adaptation
eng
uncontrolled
lipid classes
eng
uncontrolled
fatty acid changes
Biowissenschaften; Biologie
Institut für Biochemie und Biologie
Referiert
Publikationsfonds der Universität Potsdam
Open Access
Universität Potsdam
9068
2016
2016
eng
1
13
postprint
1
--
--
--
Light-Induced Changes in Fatty Acid Profiles of Specific Lipid Classes in Several Freshwater Phytoplankton Species
We tested the influence of two light intensities [40 and 300 μmol PAR / (m2s)] on the fatty acid composition of three distinct lipid classes in four freshwater phytoplankton species. We chose species of different taxonomic classes in order to detect potentially similar reaction characteristics that might also be present in natural phytoplankton communities. From samples of the bacillariophyte Asterionella formosa, the chrysophyte Chromulina sp., the cryptophyte Cryptomonas ovata and the zygnematophyte Cosmarium botrytis we first separated glycolipids (monogalactosyldiacylglycerol, digalactosyldiacylglycerol, and sulfoquinovosyldiacylglycerol), phospholipids (phosphatidylcholine, phosphatidylethanolamine, phosphatidylglycerol, phosphatidylinositol, and phosphatidylserine) as well as non-polar lipids (triacylglycerols), before analyzing the fatty acid composition of each lipid class. High variation in the fatty acid composition existed among different species. Individual fatty acid compositions differed in their reaction to changing light intensities in the four species. Although no generalizations could be made for species across taxonomic classes, individual species showed clear but small responses in their ecologically-relevant omega-3 and omega-6 polyunsaturated fatty acids (PUFA) in terms of proportions and of per tissue carbon quotas. Knowledge on how lipids like fatty acids change with environmental or culture conditions is of great interest in ecological food web studies, aquaculture, and biotechnology, since algal lipids are the most important sources of omega-3 long-chain PUFA for aquatic and terrestrial consumers, including humans.
urn:nbn:de:kobv:517-opus4-90682
online registration
Universität Potsdam, Publikationsfonds
PA 2016_10
<a href="http://publishup.uni-potsdam.de/opus4-ubp/frontdoor/index/index/docId/9067">Bibliographieeintrag der Originalveröffentlichung/Quelle</a>
CC-BY - Namensnennung 4.0 International
Alexander Wacker
Maike Piepho
John L. Harwood
Irina A. Guschina
Michael T. Arts
Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe
223
eng
uncontrolled
fatty acid changes
eng
uncontrolled
freshwater algae
eng
uncontrolled
light adaptation
eng
uncontrolled
lipid classes
Biowissenschaften; Biologie
open_access
Institut für Biochemie und Biologie
Referiert
Open Access
Universität Potsdam
https://publishup.uni-potsdam.de/files/9068/pmnr_223.pdf