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Phylogenetic assessment of five filamentous bacteria isolated from bulking activated sludges

Lookup NU author(s): Richard Howarth, Professor Ian Head


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Nearly complete 16S ribosomal RNA (rRNA)sequences were determined for fully characterised axenic strains of Thiothrix, Eikelboom type 021N, and Eikelboom type 1701 originally isolated from bulking activated sludges. Thiothrix strains formed a monophyletic group (100% bootstrap support) with previously described Thiothrix nivea strain JP2 and Thiothrix ramosa. Eikelboom type 021N strain AP3 revealed a sufficiently strong relationship to the Thiothrix group to suggest a common ancestry for the two organisms although it was not possible to designate type 021N as a species of Thiothrix. Eikelboom type 1701 contained within its sequence the target sequence of an oligonucleotide probe for the detection of Sphaerotilus natans.

Publication metadata

Author(s): Howarth R, Head IM, Unz RF

Publication type: Article

Publication status: Published

Journal: Water Science and Technology

Year: 1998

Volume: 37

Issue: 4-5

Pages: 303-306

Print publication date: 24/07/1998

ISSN (print): 0273-1223

ISSN (electronic):

Publisher: IWA Publishing

URL: .http:/

DOI: 10.1016/S0273-1223(98)00122-X


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