Klebsiella sp.
The positive test control organism for citrate utilization test is Klebsiella pneumoniae
citrate result is positive in case of pseudomonas aeroginosa. slant and butt both will be positive
bc im incomplete incubation time.
Most bacteria in Tribe V are able to utilize Citrate, with the exception of Hafnia and Pantoea (+/-). The 2 most common Klebsiella (oxytoca and pneumoniae), can utilize citrate, so should be citrate positive.
I think that there are two possible answers....first, Nocardia and, also, Bacillus anthracis. Lactobacillus might also work; however it is a microaerophilic organism and can only tolerate lesser levels of oxygen than a true aerobic organism. But all three are gram positive and, I believe, thrive with both dextrose and citrate. Nocardia has a Trycarboxylic acid cycle which utilizes both dextrose and citrate.
The positive test control organism for citrate utilization test is Klebsiella pneumoniae
positive
Sounds like Citrobacter freundii. Double check that you do have a gram negative rod that is motile, H2S negative and oxidative negative (most gram neg rods are).
No, Serratia and Klebsiella test positive for citrate. E.Coli tests negative.
M. Morganii is citrate negative
The B.cereus has a positive citrate test and a negative Voges Proskauer.
citrate result is positive in case of pseudomonas aeroginosa. slant and butt both will be positive
Bacillus megaterium
Based on my own test, Shigella flexneri tests negative for the citrate test.
bacillus subtilis
bc im incomplete incubation time.
Most bacteria in Tribe V are able to utilize Citrate, with the exception of Hafnia and Pantoea (+/-). The 2 most common Klebsiella (oxytoca and pneumoniae), can utilize citrate, so should be citrate positive.