What is axenic culture system?
From Wikipedia, the free encyclopedia. In biology, axenic (/eɪˈzɛnɪk/, /eɪˈzinɪk/) describes the state of a culture in which only a single species, variety, or strain of organism is present and entirely free of all other contaminating organisms.
Is an axenic culture the same as a pure culture?
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 non axenic culture?
Both microalgae were cultivated under non-sterile environments, so bacteria and other microorganisms which naturally grow along with microalgae were present (non-axenic cultures).
What does pure culture mean in microbiology?
pure culture, in microbiology, a laboratory culture containing a single species of organism.
What is a axenic culture in microbiology?
Definition. A microbial culture that contains only one species, variety, or strain of microorganism. Supplement. Microorganisms can be grown under controlled laboratory conditions in cultures where they are allowed to grow and reproduce.
What is a Monoxenic culture?
culture of parasites grown in association with a single known bacterium.
Why is a pure culture important in microbiology?
This allows for the creation of a pure culture, a culture of bacteria containing only one type of microorganism. These pure cultures are important to microbiologists as they allow for the study of one species without the worry of contamination from other organisms.
Why are pure cultures so important in a clinical lab?
As developed by Koch, pure cultures allow the pure isolation of a microbe, which is vital in understanding how an individual microbe may contribute to a disease.
What do you mean by synchronous culture?
Synchronous cultures are cultures in which most of the organisms are in the same stage of the cell division cycle (Fig. 2.6). Various methods of producing this result have been used (Maaløe, 1962), but they can be categorized as either forced or mechanical selection methods.
What is a mix culture?
The term “Mixed Culture” refers to the sociological condition experienced by those who have a cultural heritage which is different from the culture in which they were raised or live in. In this mixture, there are characteristics from either that remain distinct, yet coexist.
What is Polyxenic culture?
The term “polyxenic” is sometimes erroneously used as a synonym for xenic; however, polyxenic should refer only to cultures in which the identities of all the species present are known (26). The species of parasitic protist discussed below are all isolated from sources often rich in bacteria and/or fungi.
What is meant by axenic culture?
The growth and maintenance of a single species in isolation, free from foreign or contaminating species. Isolation in axenic culture is achieved usually by growing the species in an environment that was sterilized previously and was thereby rid of contaminating organisms.
What is isolation in axenic culture?
Isolation in axenic culture is achieved usually by growing the species in an environment that was sterilized previously and was thereby rid of contaminating organisms.
What is the difference between germ-free and axenic cultures?
From a practical viewpoint, because the contaminating organisms usually encountered are microorganisms, axenic cultures, whether of invertebrates (for example, nematodes) or vertebrates (for example, rodents), are often referred to as germ-free. Indeed, the terms axenic and germ-free are occasionally used interchangeably.