Quantification of Gordona amarae strains in foaming activated sludge and anaerobic digester systems with oligonucleotide hybridization probes

An oligonucleotide probe was developed to examine the role of interstrain heterogeneity in the small subunit ribosomal DNA sequences of Gordona amarae in the different responses of G. amarae strains with previous species-specific probes. G. amarae implicated in foaming activated sludge and anaerobic digester system was identified and characterized using the probe. The specificities of the probes were investigated by the hybridization of various RNAs obtained from target and nontarget bacteria.