Growth and germination of some thermophilic fungi isolated from eucalypt wood chips

Growth and germination of some thermophilic fungi isolated from eucalypt wood chips
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Growth and germination of some thermophilic fungi isolated from eucalypt wood chips

The main fungal species present in self-heated chip piles of eucalypt wood in Brazil were Aspergillusfumigatus, Chrysosporium thermophilum, Dactylomyces thermophilus, Penicillium bacillisporum, Rhizomucorpusillus and Thermoascus aurantiacus. This study determined the micelial growth and spore germin...

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Translated title: Crescimento e germinação de alguns fungos termófilos isolados de cavacos de madeira de eucalipto
Journal Title: Pesquisa Florestal Brasileira
Main Author: Celso Garcia Auer
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Traslated keyword:
Language: English
Get full text: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/140
Resource type: Journal article
Source: Pesquisa Florestal Brasileira; No 54 (Year 2007).
Publisher: Embrapa Florestas
Usage rights: Reconocimiento - NoComercial - SinObraDerivada (by-nc-nd)
Subjects: Sciences --> Biodiversity Conservation
Sciences --> Biology
Sciences --> Environmental Sciences
Applied Sciences --> Agriculture, Multidisciplinary
Applied Sciences --> Agronomy
Applied Sciences --> Forestry
Abstract: The main fungal species present in self-heated chip piles of eucalypt wood in Brazil were Aspergillusfumigatus, Chrysosporium thermophilum, Dactylomyces thermophilus, Penicillium bacillisporum, Rhizomucorpusillus and Thermoascus aurantiacus. This study determined the micelial growth and spore germination of these species at several temperatures on PDA medium ranging from 20 °C to 70 °C. Optimum growth temperatures were observed at 30 °C for A. fumigatus and P. bacillisporum; 40 °C for R. pusillus and 50 °C for D. thermophilus, C. thermophilum and T. aurantiacus. Growth was not observed at 60 °C and 70 °C. Incubation of spores on wateragar medium at 20 °C, 30 °C, 40 °C and 50 °C showed that only A. fumigatus, P. bacillisporum and R. pusillus could germinate at 20 °C.
Translated abstract: Os fungos termófilos encontrados em pilhas de cavacos de eucalipto auto-aquecidas no Brasil foram Aspergillus fumigatus, Chrysosporium thermophilum, Dactylomyces thermophilus, Penicillium bacillisporum,Rhizomucor pusillus e Thermoascus aurantiacus. Este estudo determinou o crescimento micelial e a germinação de esporos em uma faixa de temperaturas que variou de 20 °C a 70 °C. Temperaturas ótimas foram observadas a 30 °C para A. fumigatus e P. bacillisporum; 40 °C para R. pusillus e 50 °C para C. thermophilum, D. thermophilus e T. aurantiacus. Não houve crescimento nas temperaturas de 60 °C e 70 °C. A incubação dos esporos em ágaráguaa 20 °C, 30 °C, 40 °C e 50 °C mostrou que somente A. fumigatus, P. bacillisporum e R. pusillus germinaram a 20 °C.