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I inoculated nutrient agar with bacillus subtilis and it made a dark green colour on agar plates.
Best Answer: Mossy's answer is correct for nutrient agar. However, if the E. coli specimen ferments lactose, then on MacConkey and on CLED, the colonies will be pink and probably have a pink halo. Here are some pictures on MacConkey: http://www.microbelibrary.org/ASMOnly/de...ow does the bacteria Escherichia coli (E. coli) look when it is streaked on to the following agars-Nutrient Agar, CLED Agar and MacConkeys Agar. Im just wondering what the colonies would look like such as colour and appearence. Thank you. Add your answer.