The present invention relates to a biologically pure culture comprising an isolated Duddingtonia flagrans (D. flagrans) strain IAH 1297 deposited at the National Measurement Institute 1/153 Bertie Street Port Melbourne Victoria 3207 Australia on 2 August 2016 (accession number V16/019156) and/or a spore of said isolated D. flagrans strain a composition comprising the same methods and uses thereof.