Effects of endophytic and saprophytic fungi on in vitro methanogenesis

Autor:	R. A. Skipp, S Muetzel, Wade J. Mace, G. P. Cosgrove
Rok vydání:	2012
Předmět:	biology Methanogenesis Soil Science Geotrichum Plant Science biology.organism_classification Neotyphodium Monascus Endophyte chemistry.chemical_compound chemistry Botany Animal Science and Zoology Fermentation Bromoethane Mortierella Agronomy and Crop Science
Zdroj:	New Zealand Journal of Agricultural Research. 55:293-307
ISSN:	1175-8775 0028-8233
DOI:	10.1080/00288233.2012.693106
Popis:	The predominance of pasture in the diet of ruminants in New Zealand presents specific challenges for mitigation of enteric methane emissions. However, there is preliminary evidence from both laboratory and animal-based studies that some fungi may suppress enteric methanogenesis. This study determined the antimethanogenic potential of a range of endophytic (Neotyphodium species) and saprophytic (Geotrichum, Monascus, Mortierella and Penicillium species) fungi. Candidate fungi were selected on the basis of their production of various classes of secondary compounds and screened in an in vitro batch-culture fermentation assay. No strains of endophyte in ryegrass or tall fescue suppressed methanogenesis compared with their endophyte-free controls. The supernatant fractions from three strains of Mortierella wolfii were the most promising fungi identified. They suppressed methanogenesis as effectively as an inhibitor of methanogenesis (bromoethane sulphonate at 30 µmoles/L), without also reducing overal...
Databáze:	OpenAIRE
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