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Bacillus stearothermophilus



A rod-shaped, endospore-forming, Gram-positive bacterium that belongs to the division Firmicutes.


It is thermophile, and lives mostly in soil, hot springs, and ocean sediments.

It can also cause spoilage in food products.

Word origin: bacillus » LL, var. of L bacillum (dim. of baculum) staff, walking stick + stearothermophilus » Gk stéar-, fat, grease + thermophilus, Gk, comb. form of thermós hot, thérmé heat + New Latin -philus, from Greek -philos, beloved, dear, from philos, beloved, loving.

Variant: Geobacillus stearothermophilus

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Identifying unknown bacteria

... is for microbiology. I think I have narrowed my choices down to 3: Bacillus megaterium, Bacillus cereus, Bacillus stearothermophilus. I need help choosing which one because some of my test dont match up. Colony ...

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by alison_023
Sun Nov 04, 2007 12:50 am
Forum: Microbiology
Topic: Identifying unknown bacteria
Replies: 1
Views: 4627

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