Question

With these results which bacteria can it be?

Alcaligenes faecalis

Enterobacter aerogenes

Escherichia coli

Proteus vulgaris

Pseudomonas aeruginosa

Serratia marcescens

Gram Stain Results Organism Cell Shape Gram Stain Cell Arrangement Single Unknown sample Gram negative Rod Oxidase Results Color after Adding Reagent Organism Unknown sample Yellow, Negative SIM Results Motility Organismm Sulfur reductionn Indole production Unknown sample EMB Results Organismm Unknown sample Growth Colony Appearance Raised, Circular, Entired Purple, some colonies Glucose and Lactose Fermentation Glucose Lactose Organism Growth Color Acid GasGrowth Color Acid Gas Unknown sample Sediment at yellow the bottom and flocculent suspends in the broth Orange growth Nitrate Reduction Test Organism Color after Adding Nitrate Reagents A and B Growth Gas Unknown sample Sediment at the bottom Red MR-VP test Growth MR V-P Organisnm Coloror Color + or - Unknown sample Sediment at the bottom yellow Yellow Citrate Test Growth Color Organism +or Unknown sample Arborescent Blue Urease Results Color Organism Growth Unknown sample Echinulate yellow

Answer 1

Alcaligenes faecalis

Indole,MR-VP,urease, nitrate reduction are negative. Citrate test is positive