Microbial utilization of lipids in lake water

This report evaluates the importance of lipids as a source of substrates for metabolism of heterotrophic bacteria based on measurements of uptake of [ 3H]palmitic acid and lipase activity in lakes of differing degrees of eutrophication. The highest rates of utilization of lipids by bacteria (i.e. sp...

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Bibliographic Details
Published in:FEMS microbiology ecology 1995, Vol.18 (1), p.45-50
Main Authors: Chróst, Ryszard J., Gajewski, Adam J.
Format: Article
Language:English
Subjects:
Animal and plant ecology
Animal, plant and microbial ecology
Aquatic bacteria
Biological and medical sciences
Fresh water ecosystems
Freshwater
Fundamental and applied biological sciences. Psychology
Lake
Lipolysis
Palmitic acid uptake
Synecology
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Summary:This report evaluates the importance of lipids as a source of substrates for metabolism of heterotrophic bacteria based on measurements of uptake of [ 3H]palmitic acid and lipase activity in lakes of differing degrees of eutrophication. The highest rates of utilization of lipids by bacteria (i.e. specific and actual rates of uptake of [ 3H]palmitic acid and specific lipase activity) were observed in pelagic water of mesotrophic lake where the highest concentration and the shortest turnover time of natural pool of palmitic acid was found. Lipids in highly eutrophicated lakes were less important for metabolism of aquatic bacterial communities. Lipid content in lake water depended on species composition of plankton in the studied lakes.
ISSN:0168-6496
1574-6941
DOI:10.1016/0168-6496(95)00039-D