Microfungal species composition and fungal biomass in a coniferous forest soil polluted by alkaline deposition |
| |
Authors: | Hannu Fritze Erland Bååth |
| |
Institution: | (1) Department of Forest Ecology, Finnish Forest Research Institute, P.O. Box 18, SF-01301 Vantaa, Finland;(2) Department of Microbial Ecology, Lund University, Helgonavägen 5, S-22362 Lund, Sweden |
| |
Abstract: | Isolations of soil microfungi from the humus (F/H-layer) of a coniferous forest soil which was either unpolluted (pH 4.1) or polluted (pH 6.6) for 25 years by deposition of alkaline dust, were made by soil washing and spore plating. Both techniques revealed similar changes in species composition. Alkaline dust exposure caused a reduction in overall species numbers, but led to higher relative isolation frequencies of Mortierella alpina, Oidiodendron tenuissimum, Penicillium montanese, Sagenomella verticillata, and Trichosporiella sporotrichioides. The incidence of M. isabellina, O. cf. clamydosporium, P. spinulosum, Penicillium sp. 1, P. sclerotiorum, Trichoderma viride, and Verticillium bulbillosum was reduced on polluted sites. The amount of the mainly fungal-derived phospholipid fatty acid 18 : 26 decreased by 23%, while the amount of ergosterol increased by 9% in the polluted soil.
Offprint requests to: H. Fritze. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|