The effect of oxygen on fatty acid composition of soil micromycetes |
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| Affiliation: | 1. Natural Resources Institute Finland (Luke), Yliopistokatu 6, 80100 Joensuu, Finland;2. School of Forest Sciences, University of Eastern Finland, PO Box 111 (Yliopistokatu 7) Joensuu, Finland;1. State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory of Biotechnology in Plant Protection of Ministry of Agriculture of China and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo, Zhejiang 315100, China;2. Institute of Eco-Environment and Plant Protection, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China;3. Yinzhou Station of Agricultural Technical Extension, Ningbo, Zhejiang 315100, China;4. Hubei Key Laboratory of Critical Zone Evolution, School of Earth Sciences, China University of Geosciences, Wuhan 430074, China;1. Biotechnogy Division, Council of Scientific and Industrial Research (CSIR)-Institute of Himalayan Bioresource Technology, Palampur, H.P. 176061, India;2. Dietetics & Nutrition Technology Division, CSIR-Institute of Himalayan Bioresource Technology (IHBT), Palampur, H.P. 176061, India;3. Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India;1. Department of Biological Sciences, Western Illinois University, Macomb, IL 61455, USA;2. Bioscience Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA;1. Área de Ecología, Departamento de Biología Celular y Ecología, Facultad de Biología, Universidad de Santiago de Compostela, 15782 Santiago de Compostela, Spain;2. University of Trieste, Department of Life Sciences, Via Giorgieri 10, I-34127 Trieste, Italy;3. Área de Ecología, Escuela Politécnica Superior, Universidad de Santiago de Compostela, 27002 Lugo, Spain |
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| Abstract: | The aim of this work was to describe changes in fatty acid profiles of fungi growing under artificial conditions of oxygen depletion. In total, 133 fungal strains belonging to eight orders were isolated from cattle impacted soils and tested. The analysis of the ten most frequent fatty acids revealed significant shift in fatty acids composition as a result of decreasing oxygen level. Taxonomic- as well as aeration-dependent changes in the amounts of fungal biomarker fatty acids (18:1ω9 and 18:2ω6,9) were found. Therefore, the ratio of these two fatty acids could be considered as an indicator of anaerobic, microaerobic or aerobic conditions in soil. Moreover, fatty acid-based estimation of fungal biomass in soils should be performed as a sum of both biomarker fatty acids and with respect to the soil characteristics as well as to the composition of fungal community. |
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| Keywords: | Soil micromycetes Oxygen depletion Fatty acids |
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