The citrate utilization test is commonly employed as part of a group of tests, the IMViC (Indole, Methyl Red, VP, and Citrate) tests, that distinguish between members of the Enterobacteriaceae...
Category: Bacteriology
Bacitracin is a bactericidal drug that is useful in treating superficial skin infections but is too toxic for systemic use. Bacitracin is a polypeptide antibiotic produced by Bacillus subtilis....
Streptococcus pneumoniae: Properties, Pathogenesis, and Diagnosis
Streptococcus pneumoniae (pneumococci) is a part of the normal nasopharyngeal and oropharyngeal flora. It is an important etiological agent of upper and lower respiratory tract infections (URTI...
Biosafety level 1 (BSL1) guidelines for teaching laboratories
Preamble: Educators need to be aware of the risks inherent in using microorganisms in the laboratory and must use best practices to minimize the risk to students and the community. The following...
In this blog post, I am sharing information about the standard, conventional biochemical tests and their primary uses in the Microbiology laboratory for identifying pathogens of interest. Some of the...
Colony color or pigmentation is mostly exploited characteristics of bacteria which aids in the differentiation and identification of the isolates. Except when there is a growth of pigmented bacteria....