Original title: Potential sources of polyunsaturated fatty acids for saprophagous soil invertebrates
Authors: Elhottová, Dana ; Frouz, Jan ; Krištůfek, Václav ; Lukešová, Alena ; Nováková, Alena ; Tříska, Jan
Document type: Papers
Conference/Event: Central European Workshop on Soil Zoology /6./, České Budějovice (CZ), 2001-04-23 / 2001-04-25
Year: 2002
Language: eng
Abstract: Main sources of important nutritionally compounds - polyunsaturated fatty acids (PUFA) essential in soils animal diet were compared. The highest concentration of PUFA was found in cyanobacteria (namely Antarctic strain Pseudophormidium sp.), followed by fresh litter, algae, fungi and decomposed litter. The PUFA occurrence in bacteria including actinomycetes was rare. Leaf litter is the most important source of PUFA for soil invertebrates in regards to both PUFA concentration and occurrence in soil. The stage of litter decomposition significantly affected the content of all 13 detected PUFA. The total PUFA content decreased significantly during litter decomposition. Enrichment in certain PUFA was observed in the latest stages of litter decomposition, indicating that the soil microflora improves the nutritional value of the decaying ĺitter.
Keywords: animal diet; polyunsaturated fatty acids; soil microorganisms
Project no.: CEZ:AV0Z6066911 (CEP), GA526/99/P033 (CEP), IAB6066903 (CEP), IAA6066001 (CEP)
Funding provider: GA ČR, GA AV ČR, GA AV ČR
Host item entry: Studies on Soil Fauna in Central Europe, Proceedings of the 6th Central European Workshop on Soil Zoology, ISBN 80-86525-00-7

Institution: Institute of Soil Biology AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0102040

Permalink: http://www.nusl.cz/ntk/nusl-29759


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