urease - negative
ONPG - positive
Lysine - positive
Salmonella, Shigella, Yersinia, and Serratia are all gram-negative facultatively anaerobic rods.
The biochemical test commonly used to identify Salmonella typhi is the Widal test. This test detects antibodies produced in response to a Salmonella typhi infection by measuring agglutination (clumping) reactions between the bacteria and specific antibodies in the patient's serum. Other tests like blood culture and polymerase chain reaction (PCR) can also be used for confirmation.
salmonella
Salmonella, Shigella Organisms that ferment lactose display "nucleated colonies" - colonies with dark centers.
Its color is red.
Yes, Salmonella is typically negative for the urea test. This test is used to determine an organism's ability to hydrolyze urea into ammonia and carbon dioxide, which Salmonella does not do. Instead, Salmonella is generally identified using other biochemical tests that highlight its unique metabolic characteristics.
what are the biochemical tests for ascomycetes fungi?
Shigella and the majority of salmonellae Clear, colorless, transparent Salmonella enteriditis ATCC 13076 Colorless with black center Salmonella typhi ATCC 6539 Colorless with black center Salmonella typhimurium ATCC 14028 Colorless with black center
S. aureus, E. coli, P. auriginosa, Salmonella typhi, Shigella sonnei, Shigella flexneri, Vibrio cholera.
Shigella are identified by a combination of their appearance under the microscope and various chemical tests.
what are the biochemical tests for ascomycetes fungi?
Based on my own test, Shigella flexneri tests negative for the citrate test.