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Low temporal variation in the intact polar lipid composition of North Sea coastal marine water reveals limited chemotaxonomic value by J. Brandsma; E. C. Hopmans; C. J. M. Philippart; M. J. W. Veldhuis; S. Schouten; J. S. Sinninghe Damsté is a Environmental Science article available to read on EtoBox.
What is Low temporal variation in the intact polar lipid composition of North Sea coastal marine water reveals limited chemotaxonomic value about?
Abstract. Temporal variations in the abundance and composition of intact polar lipids (IPLs) in North Sea coastal marine water were assessed over a one-year seasonal cycle, and compared with environmental parameters and the microbial community composition. Sulfoquinovosyldiacylglycerol (SQDG) was the most abundant IPL class, followed by phosphatidylcholine (PC), phosphatidylglycerol (PG) and diacylglyceryl-(N,N,N)-trimethylhomoserine (DGTS) in roughly equal concentrations, and smaller amounts of phosphatidylethanolamine (PE). Although the total concentrations of these IPL classes varied substantially throughout the year, the composition of the IPL pool remained remarkably constant. Statistical analysis yielded negative correlations between IPL concentrations and dissolved inorganic nutrient concentrations, but no changes in the overall planktonic IPL composition due to nutrient limitation were observed. Significant correlations between SQDG, PC, PG and DGTS concentrations and chlorophyll a concentrations and algal abundances indicated that eukaryotic primary producers, in particular Phaeocystis globosa, were the predominant source of IPLs at this site. However, while IPL concentrat
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- Author
- J. Brandsma; E. C. Hopmans; C. J. M. Philippart; M. J. W. Veldhuis; S. Schouten; J. S. Sinninghe Damsté
- Publisher
- Copernicus GmbH; Göttingen: Copernicus Publ. (ISSN 1726-4189)
- Published
- 2012
- Language
- EN
- Field
- Environmental Science (Physical Sciences)