M Biology

About microscopic forms of life, including Bacteria, Archea, protozoans, algae and fungi. Topics relating to viruses, viroids and prions also belong here.

Moderators: honeev, Leonid, amiradm, BioTeam

Post Reply
Posts: 1
Joined: Wed Apr 22, 2009 4:29 pm

M Biology

Post by ottotrac » Wed Apr 22, 2009 4:43 pm

Help, I need to identify a bacteria for my micro bio lab.
We need to try to figure out the genus but don't necessarily need the species. Would be a plus if I could come close to figuring it out.
Here are the results of all the tests I performed.
Colony morphology Circular, Raised, smooth, glistening
Cell morphology Rod, Bacillus (single)
Gram stain Pink, Gram -
Osmotic sensitivity Up to 20% NaCl
Temperature tolerance 4˚ – 37˚ - Mesophile
Acidity/alkalinity Prefers Alkaline/neutral
Growth on glucose No Growth
Growth on amino acids (a.a.) Growth
Growth on glucose & a.a. Growth
Growth on glucose, a.a. & yeast extract Growth
Aerobic/anaerobic Aerobic
MacConkey agar No Growth
Mannitol salts agar No Growth
Amylase No Growth
Citrate No Growth
Oxidation/fermentation Pink/Orange No Growth
Glucose; acid/gas Can’t Produce Acid or Gas From Glucose
Methyl red Lt. Yellow, Negative
Voges-Proskauer Gold Yellow, Negative
Triple iron sugar No Gas, No FeS
Indole Does Not Produce
Ornithine decarboxylase Positive, decarboxylase of ornithine
Nitrate reduction Alot Nitrate Present
Oxidase Oxidase Negative
Catalase Strong Reaction
Coagulase Negative Result, no clot
Hemolysis β-Hemolysis
Motility Very Motile
Thank you for any help!

Post Reply

Who is online

Users browsing this forum: No registered users and 7 guests