red bacterial colonies petri dish isolated black |
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| navigate by keyword : agar backgrounds bacteria bacteriology bacterium biological biology biotechnology black cell clinic colonies colony color culture danger dish exam experiment glass growth health healthcare hygiene image incubate incubator inoculation isolated laboratory medical medicine medium micro microbiology microflora microorganisms object passage pathogen pathogenic petri plate prokaryote red research risk safety sample science scientific strain substance test toxic warning |
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| Red bacterial colonies on a petri plate ( dish ) isolated on a black background. Oil-degrading bacteria used. Nutrient agar media used. Focus on full depth. Big bacterial colonies mainly seems not to be with a sharp border because of this strain colonies has a transparent mucus around. |
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