What attracted me to a
microbiologist was the world of invisible organisms. There are millions and
billions of these microscopic organisms in and around us. For an ordinary
person, it may be little difference between bacteria vs. virus. Bacteria are
unicellular microorganisms in various forms. There are different types of
bacteria, beneficial bacteria and pathogenic bacteria. Beneficial bacteria help
the fermentation of food and drink, so that antibiotics kill the parasites,
even digesting food. Pathogenic bacteria, on the other hand, are the main cause
of diseases that are caused by bacteria. To distinguish between useful and
harmful bacteria, scientists have developed a scientific classification of
bacteria.
The classification aids in the
identification of bodies by the stakeholders. These groups include
organizations that share common characteristics and properties of another
organism to another group. The classification of bacteria carried by the
medical significance was determined by the "grief reaction" for all
these years. Gram reaction is a medical test after Christian Gram, who came up
with the process name in 1884. He found that the organizations capacity,
crystal violet iodine complex after treatment with organic solvents, such as to
maintain alcohol and acetone.
Organizations that retain the
stain are gram-positive color and appearance of purple or blue-black under
brightfield Microbiology. Those who hold the dye complex may not need to be
stained with fuchsin as cons, and are also Gram-negative bacteria. In
collaboration with the Gram-reaction, the scientists also take the form of
bacteria to classify them. There are different types of forms like bacteria:
cocci (round), bacilli (rod-shaped or stick) or a spiral.
Scientific classification of
bacteria based on the manual Bergy
Bergy's Manual of Systematic
Bacteriology is like the Holy Testament for us microbiologist. This manual is
the guiding light for a microbiologist to identify bacterial species and
understanding their properties. This manual is published for the first time
David Hendricks Bergy in 1923 and contributed to the classification of their
structure and functional properties. The following table shows the
classification of bacteria that form and function according to Bergy's manual.
The classification is
incomplete, a microbiologist, until he / she can not place any and all bacteria
in their specific groups. The following is a chart with the names of most
bacterial species contained in specific groups according to their Gram reaction
and the specific group.
Classification of bacteria of
medical interest, the reaction of Gram-positive
This classification was
undertaken in 1984 and represents the cocci rods, forming endospores and
non-Spöring, mycobacteria, non-filamentous actinomycetes in this group.
Classification of bacteria of
medical interest, the reaction of Gram-negative
This classification was
undertaken in 1986 and placed spirochetes, spiral and curved, aerobic bacteria
and facultative anaerobes obligate aerobes rods, aerobic and anaerobic cocci,
sulfate and sulfur-reducing, rickettsia, clamydias, mycoplasma in this group .
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