Lecture-1-

Microbial Divisions

The field of microbiology includes the study of bacteria, fungi, protozoa and viruses.
Bacteriology: is the science dealing with the study of bacteria.
Mycology: is the science dealing with the study of fungi.
Protozology: is the science dealing with the study of protozoa.
Virology: is the science dealing with the study of viruses.
Immunology: is the study of host s defense mechanisms against disease, also study the interaction between human and disease agents (pathogenic microbes).
The size M.Os. were variable; viruses are smallest MO, bacteria (prokaryots), fungi, protozoa and worms (euokaryotes). In genera prokaryotic cells are smaller than eukaryotic cells.
The binomial system of published by C. Linnaeus. The genus and species are significant taxonomic uses in binomial nomenclature for each organism. First name for genus and second name for species. First letter of genus should be written in capital letter, whereas first letter of species, must be write in small. Name of genus and species for any organism must be write in Italic from or place line under each genus and species.
Ex: Staphylococcus aureus.


Name of bacteria are derived from
The name of disease that caused by bacteria. Ex: Vibrio cholerae = causes cholerae.
The locality where the bacteria was first isolated. Ex: Escherichia coli = from colon.
The scientists responsible for isolating bacteria. Listeria = Lister.
Properties of bacterial morphology and physiology. Staphylococcus aureus = cluster.