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The frequent discrepancy between direct microscopic counts and numbers of culturable bacteria from environmental samples is just one of several indications that we currently know only a minor part of… Expand
In situ hybridization with rRNA-targeted oligonucleotide probes has become a widely applied tool for direct analysis of microbial population structures of complex natural and engineered systems. In… Expand
ABSTRACT Uncultivated Nitrospira-like bacteria in different biofilm and activated-sludge samples were investigated by cultivation-independent molecular approaches. Initially, the phylogenetic… Expand
We designed a panel of four 16S rRNA-targeted oligonucleotide probes specific for bacteria of the phylum cytophaga-flavobacter-bacteroides (CFB). Probes CF319a and CF319b are targeted to members of… Expand
Recently, a bacterium capable to oxidize ammonium anaerobically at a high rate was identified as novel member of the Planctomycetales (Strous, M., Fuersi, J. A., Kramer, E. H. M., Logemann, S.,… Expand
The optical method of De Ley et al. (1970) for determining DNA/DNA homologies was reexamined. Several parameters such as incubation temperature, incubation time, DNA concentration and DNA fragment… Expand
[This corrects the article on p. 409 in vol. 36.].
ABSTRACT The ammonia-oxidizing and nitrite-oxidizing bacterial populations occurring in the nitrifying activated sludge of an industrial wastewater treatment plant receiving sewage with high ammonia… Expand
Comparative sequence analysis of small subunit rRNA is currently one of the most important methods for the elucidation of bacterial phylogeny as well as bacterial identification. Phylogenetic… Expand