Quantification of novel geosmin-producing bacteria in aquaculture systems

Earthy off-flavour, caused by geosmin, constitutes an economic problem in recirculating aquaculture systems (RAS). Cyanobacteria, Streptomyces and myxobacteria are thought to be the main geosmin-producing bacteria in aquatic systems. In this study, the phylogeny of the gene involved in the geosmin production, geosmin synthase gene (geoA), was investigated. The results revealed an absence of multiple horizontal gene transfer, and therefore, the...