Current Microbiology (2001) 42, 422-425

Eiichi Mizuki, Minoru Maeda, Rie Tanaka, Dae-Weon Lee, Miki Hara, Tetsuyuki Akao, Satoko Yamashita, Ho-San Kim, Tokio Ichimatsu and Michio Ohba (2001)
Bacillus thuringiensis: A common member of microflora in activated sludges of a sewage treatment plant
Current Microbiology 42 (6), 422-425
Abstract: Bacillus thuringiensis was recovered at a high frequency from activated-sludge system environments in an urban sewage-digestive plant. All of the test materials, sampled at several digesting steps, contained the organism. Of 515 colonies belonging to the B. cereus/B. thuringiensis group, 45 (8.7%) were assigned to B. thuringiensis. The highest density of this bacterium was 1.6 × 10³ cfu/ml in a scum sample of the first aeration basin. Among the 45 isolates, 7 were assigned to the known H serovars. Two isolates of the serovar kenyae isolates exhibited Lepidoptera-specific toxicity. Diptera-specific toxicity was shown by an isolate of serovar israelensis and a serologically undefined isolate. Lectin activity was associated with 12 isolates.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Eiichi Mizuki

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
surveys/distribution/isolation

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
Bacillus thuringiensis (entomopathogen)
Bacillus thuringiensis var. israelensis (entomopathogen)
Bacillus thuringiensis var. kenyae (entomopathogen)