Hm. Stratton et al., THE OPPORTUNISTIC PATHOGEN NOCARDIA-FARCINICA IS A FOAM-PRODUCING BACTERIUM IN ACTIVATED-SLUDGE PLANTS, Letters in applied microbiology, 22(5), 1996, pp. 342-346
A Grampositive unicellular coccal-diphtheroid rod causing foam in an a
ctivated sludge plant was successfully isolated by micromanipulation.
Phenotypic characterization and 16S rDNA sequencing identified it as N
ocardia farcinica. This is the first report that this opportunistic pa
thogen is a foam-causing bacterium in activated sludge, and the clinic
al implications of these observations are discussed.