Articles
FUNGI IN A CONTROLLED COMPOST SYSTEM – WITH SPECIAL EMPHASIS ON THE THERMOPHILIC FUNGI
Article number
469_43
Pages
405 – 416
Language
Abstract
A well-defined material consisting of straw and a nitrogen source was composted in well-insulated containers.
The C/N ratio was adjusted to about 30, and the moisture content to 70%. The temperature was monitored continuously.
During the first month of composting samples were taken for fungal and chemical analysis.
Compost samples were homogenised, washed, and 2 mm pieces of material were placed on agar media and incubated at 24 and 45°C. The Petri dishes were studied frequently and the germinating fungi were identified.
The fungi developing during the compost process can be divided in two groups: One appearing before peak heating and another appearing after.
Before peak heating there was dominated by species of: Penicillium, Absidia, Trichurus, and Trichoderma when incubation was at 24°C, while Aspergillus fumigatus and Rhizomucor pusillus dominated when incubation was at 45°C. In samples taken after peak heating the thermophilic and thermotolerant species Thermomyces lanuginosus, Scytalidium thermophilum and Paecilomyces variotii dominated.
Fruit bodies of Coprinus cinereus developed in great amounts during this phase.
The C/N ratio was adjusted to about 30, and the moisture content to 70%. The temperature was monitored continuously.
During the first month of composting samples were taken for fungal and chemical analysis.
Compost samples were homogenised, washed, and 2 mm pieces of material were placed on agar media and incubated at 24 and 45°C. The Petri dishes were studied frequently and the germinating fungi were identified.
The fungi developing during the compost process can be divided in two groups: One appearing before peak heating and another appearing after.
Before peak heating there was dominated by species of: Penicillium, Absidia, Trichurus, and Trichoderma when incubation was at 24°C, while Aspergillus fumigatus and Rhizomucor pusillus dominated when incubation was at 45°C. In samples taken after peak heating the thermophilic and thermotolerant species Thermomyces lanuginosus, Scytalidium thermophilum and Paecilomyces variotii dominated.
Fruit bodies of Coprinus cinereus developed in great amounts during this phase.
Authors
M. Klamer, U. Søchting
Keywords
Miscanthus, elephant grass, pig manure, fungal succession, Coprinus cinereus, Scytalidium thermophilum, Thermomyces lanuginosus
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