Indications for the tracking of elevated nitrogen levels through the fungal route in a soil food web
| Autor: | M.A.J. Dijkhuis, Matty P. Berg, R.F. Hogervorst, Herman A. Verhoef, M.A. van der Schaar |
|---|---|
| Přispěvatelé: | Animal Ecology |
| Jazyk: | angličtina |
| Rok vydání: | 2003 |
| Předmět: |
Trichoderma koningii
Food Chain Nitrogen Health Toxicology and Mutagenesis Cladosporium cladosporioides Toxicology Botany Soil food web Animals Soil Pollutants Organic matter Arthropods chemistry.chemical_classification biology Scots pine Fungi General Medicine biology.organism_classification Pinus Pollution Penicillium glabrum Orchesella cincta Horticulture Biodegradation Environmental chemistry Litter Environmental Monitoring |
| Zdroj: | Hogervorst, R F, Dijkhuis, M A J, van der Schaar, M A, Berg, M P & Verhoef, H A 2003, ' Indications for the tracking of elevated nitrogen levels through the fungal route in a soil food web. ', Environmental Pollution, vol. 126, pp. 257-266 . https://doi.org/10.1016/S0269-7491(03)00186-6 Environmental Pollution, 126, 257-266. Elsevier Limited |
| ISSN: | 0269-7491 |
| DOI: | 10.1016/S0269-7491(03)00186-6 |
| Popis: | The objective of the present study was to determine the effects of elevated N in dead organic matter on the growth of fungi and to establish the consequences for the development of microbivores. Therefore, three fungal species were cultured on Scots pine litter differing in N content. The growth of the soil fungal species Trichoderma koningii, Penicillium glabrum and Cladosporium cladosporioides was directly influenced by the N content (ranging from 1.25 to 2.19% N) of the substrate. For all three fungal species maximum growth was highest at intermediate N content (1.55%) of the substrate. The fungivorous collembolan Orchesella cincta reached highest asymptotic body mass when fed with C. cladosporioides, grown on litter medium with intermediate N content (1.55%). The growth of O. cincta was lower when fed with C. cladosporioides from litter medium with the highest N content (2.19%). Similar results were obtained in mesocosm experiments in which pine litter with three levels of N (1.11, 1.78, 2.03% N) was used as substrate for the fungi. On litter with the highest N content (2.03%) hyphal length and asymptotic body mass of O. cincta were reduced. The results show that the N content of the substrate determines the growth of both fungi and fungivores, and suggest that elevated levels of N in soil track through the fungal part of the soil food web. |
| Databáze: | OpenAIRE |
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