Most of the currently known species of bacteria have been identified using traditional microbiological techniques such as the gram stain reaction, morphology, and metabolic reactions. Isolating a single bacterium species is the first step in identifying the bacteria possibly responsible for a disease process.

An isolated colony thus represents a “pure culture,” a visible mass of genetically identical bacterial cells which originated from one “mother cell.” Once you have obtained isolated colonies you can then identify and study the characteristics of that pure culture.

Each distinct colony represents an individual bacterial cell or group that has divided repeatedly. Being kept in one place, the resulting cells have accumulated to form a visible patch. Most bacterial colonies appear white or a creamy yellow in colour, and are fairly circular in shape.

It is important to know the morphological structure of microbes, as it provides us with a better understanding of microbial physiology, pathogenic mechanisms, antigenic features, and allows us to identify them by species.

How, then, might morphology contribute to natural selection? Simply put, bacteria with different shapes present different physical features to the outside world, and these features help cells cope with and adapt to external conditions. Even a 0.01% increase in the growth rate of E.

Bacteria are unique microorganisms that have a variety of physiological functions which are beneficial to human beings. However, bacteria can also be harmful and cause infections if translocated from the gastrointestinal tract to the epithelial tissue following surgery.

Bacterial disease

• bacteria.
• Infectious disease.
• Cholera.
• Leprosy.
• Tuberculosis.
• Plague.
• Syphilis.
• Anthrax.

Infectious diseases can be caused by: Bacteria. These one-cell organisms are responsible for illnesses such as strep throat, urinary tract infections and tuberculosis.

Mupirocin. This topical antibiotic has activity against streptococci and staphylococci. Its primary use is for treatment of superficial skin infections, but in recent years it has been frequently prescribed for application to the anterior nares in patients with recurrent staphylococcal skin infections.

You may increase your chances of getting MRSA if: You take antibiotics a lot. You take antibiotics without a prescription. You don’t follow your doctor’s directions when taking antibiotics (for example you stop taking your antibiotics before finishing a prescription or you skip doses)