It is a gram negative bacillus, facultative anaerobe, Phenol Red test for Lactose there was no...

It is a gram negative bacillus, facultative anaerobe, Phenol Red test for Lactose there was no fermentation, Catalase test was positive with bubbles, oxidase was negative. What would be the name for this unknown bacteria?

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Expert Solution

From the information you have provided, it is not possible to find the exact name of the unknown bacteria. Further tests should be done to identify them.

The bacteria could be charcaterised as

A Gram negative facultative anaerobe, non lactose fermentors, positive catalase and negative oxidase.

All the bacteria belonging to Enterobacteriaceae family is oxidase negative. So the given bacteria belongs to Enterobacteriaceae non lactose fermentors family.

This may be Salmonella spp, Shigella spp, Proteus spp, Morganella spp or Providencia spp

So other tests such as motility, Indole test, ornithine decarboxylase,etc should be done to identify them further.

For now, it is non lactose fermenting Enterobacteriacae bacteria.

gladiator answered 1 year ago

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