What Is A Pure Culture Of Bacteria?

What are types culture?

: a viable culture of an organism that is directly descended from the strain or isolation on which the original description of the organism is based..

How do you isolate a pure culture of bacteria?

Simpler methods for isolation of a pure culture include: (i) spread plating on solid agar medium with a glass spreader and (ii) streak plating with a loop. The purpose of spread plating and streak plating is to isolate individual bacterial cells (colony-forming units) on a nutrient medium.

What is the definition of a pure culture in microbiology?

A pure (or axenic) culture is a population of cells or multicellular organisms growing in the absence of other species or types. A pure culture may originate from a single cell or single organism, in which case the cells are genetic clones of one another.

What is considered a pure culture?

A pure culture is a culture in which only one strain of bacteria is present. A colony is considered a pure culture because it is known as several individual organisms, especially of the same species, living together in close association.

How do you get a pure culture of bacteria?

Obtaining a pure culture of bacteria is usually accomplished by spreading bacteria on the surface of a solid medium so that a single cell occupies an isolated portion of the agar surface. This single cell will go through repeated multiplication to produce a visible colony of similar cells, or clones.

Why do we need a pure culture of bacteria?

The isolation of bacteria in pure culture is important because it facilitates the application of recombinant DNA technology through the isolation of clones.