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210648B

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Image #   210648B
Name:   Bacillus atrophaeus - spore-forming, bioindicator bacterium
Copyright:   Copyright 2010 Dennis Kunkel Microscopy, Inc.
Description:   Caption: Bacillus atrophaeus ? Gram-positive, aerobic, spore-forming, rod-shaped, bacterium. This bacterium is almost identical to Bacillus subtilis. Bacillus atrophaeus is pigmented when grown in organic nitrogen medium, thus it has been classified as a new species. Bacillus atrophaeus spores are used in the preparation of bioindicators to monitor the dry heat, ethylene oxide, and plasma sterilization processes and in tests to assess sterilizing products. The regular use of biological indicators to evaluate the efficiency of sterilization processes is a legal requirement for health services. Bacillus atrophaeus is also used as a Bacillus anthracis surrogate in the development and validation of biosafety methods.
Magnification*: x4,000
Type: SEM
    *(Magnifications are based on a 35mm slide image of 24mm in the narrow dimension.)
Keywords:   210648B 10.01.10 bacteria bacterium biological indicator biological indicators biological agent biological agents biological contamination biological contaminant anti-microbial agent anti-microbial agents spore forming aerobic spore forming rod rod-shaped rod bacterium rod bacteria DSM 675 hot air sterilization control DSM 2277 ethylene oxide sterilization control Bacillus atrophaeus Bacillus SEM Firmicutes biologic indicator biology indicator EO Gas aerobe aerobic bacilli bacillus Bacillus subtilis decaying organic matter dividing division endospore-forming endospore forming endospore endospores endospore bacterium endospore bacteria extracellular enzyme extracellular enzymes extreme environment extremophilic eye infection genetic manipulation genetic studies genetically engineered Gram-positive Gram positive hay bacillus human disease human infection human pathogen insect toxin insect toxins iridocyclitis model organism organic matter panopthalmitis peptide antibiotic peptide antibiotics prokaryote rod-shaped bacterium rod shaped bacterium soil bacteria soil bacterium soil microbe soil organism spore-forming vegetative rod vegetative rods vegetative stage resistant spore resistant spores resistant endospore resistant endospores heat resistant heat resistant spore heat resistant endospore proteolytic enzyme proteolytic enzymes subtilisin food spoilage extremophile extremophiles bioindicator bioindicator bacteria bioindicator bacterium EO gas sterilization dry heat sterilization dry heat treatment sterilization process sterilization processes biosafety method biosafety methods surrogate bacteria surrogate bacterium plasma sterilization pigmented bacteria pigmented bacterium development of biosaftey method development of biosaftey methods

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