title: Chlorine-susceptible and chlorine-resistant type 021N bacteria occurring in bulking activated sludges.
abstract: Two filamentous bacteria causing bulking in two activated sludges were examined. Investigations using morphological features, staining techniques, and fluorescent in situ hybridization identified both filaments as type 021N. However, an examination of the effect of chlorine on the sludges revealed a chlorine-susceptible type 021N in one sludge and a chlorine-resistant type 021N in the other.
authors.affiliation: Laboratory for Microbial Ecology and Technology, Center for Environmental Sanitation, Ghent University, 9000 Ghent, Belgium.
authors.forename: M A
authors.initials: MA
authors.lastname: Séka
authors.forename: Y
authors.initials: Y
authors.lastname: Kalogo
authors.forename: F
authors.initials: F
authors.lastname: Hammes
authors.forename: J
authors.initials: J
authors.lastname: Kielemoes
authors.forename: W
authors.initials: W
authors.lastname: Verstraete
mesh_terms: D002713:Chlorine / Q000494:pharmacology*; D004202:Disinfectants / Q000494:pharmacology*; D024881:Drug Resistance, Bacterial; D006090:Gram-Negative Bacteria / Q000145:classification / Q000187:drug effects* / Q000235:genetics / Q000302:isolation & purification; D017404:In Situ Hybridization, Fluorescence; D012722:Sewage / Q000382:microbiology*; D013194:Staining and Labeling / Q000379:methods; D014865:Waste Disposal, Fluid
chemical_list: D004202:Disinfectants; D012722:Sewage; D002713:Chlorine