pure culture

pure culture
the growth of only one microorganism in a culture.
[1890-95]

* * *

In microbiology, laboratory culture containing a single species of organism.

A pure culture is usually derived from a mixed culture (containing many species) by methods that separate the individual cells so that, when they multiply, each will form an individually distinct colony, which may then be used to establish new cultures with the assurance that only one type of organism will be present. Pure cultures may be more easily isolated if the growth medium of the original mixed culture favours the growth of one organism to the exclusion of others.

* * *

      in microbiology, a laboratory culture containing a single species of organism. A pure culture is usually derived from a mixed culture (one containing many species) by transferring a small sample into new, sterile growth medium in such a manner as to disperse the individual cells across the medium surface or by thinning the sample manyfold before inoculating the new medium. Both methods separate the individual cells so that, when they multiply, each will form a discrete colony, which may then be used to inoculate more medium, with the assurance that only one type of organism will be present. Isolation of a pure culture may be enhanced by providing a mixed inoculum with a medium favouring the growth of one organism to the exclusion of others.

* * *


Universalium. 2010.

Игры ⚽ Поможем решить контрольную работу

Look at other dictionaries:

  • pure culture — n 1) a culture containing a growth of a single kind of organism free from other organisms 2) a culture containing the descendants of a single organism whether free from all organisms of other kinds or not * * * a culture that contains only one… …   Medical dictionary

  • pure culture — pure culture. См. чистая культура. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • pure culture — noun 1. : a culture containing a growth of a single kind of organism free from other organisms 2. : a culture containing the descendants of a single organism whether free from all organisms of other kinds or not …   Useful english dictionary

  • pure culture — A population of cells that are identical because they arise from a single cell …   Dictionary of microbiology

  • pure culture — /pjuə ˈkʌltʃə/ (say pyoohuh kulchuh) noun a nutrient medium and a single bacterial or other species cultivated on it …  

  • Culture — A culture is the propagation of microorganisms in a growth media. Any body tissue or fluid can be evaluated in the laboratory by culture techniques in order to detect and identify infectious processes. Culture techniques also be used to determine …   Medical dictionary

  • culture — /kul cheuhr/, n., v., cultured, culturing. n. 1. the quality in a person or society that arises from a concern for what is regarded as excellent in arts, letters, manners, scholarly pursuits, etc. 2. that which is excellent in the arts, manners,… …   Universalium

  • culture — 1) n. a population of microorganisms, usually bacteria, grown in a solid or liquid laboratory medium (culture medium), which is usually agar, broth, or gelatin. A pure culture consists of a single bacterial species. A stab culture is a bacterial… …   The new mediacal dictionary

  • Culture De L'Allemagne — Goethe et Schiller, deux représentants majeurs de la culture allemande L Allemagne fait partie de l aire de la civilisation européenne. Cependant, la notion de culture est perçue de façon différente en France et en Allemagne. En France, la …   Wikipédia en Français

  • Culture allemande — Culture de l Allemagne Goethe et Schiller, deux représentants majeurs de la culture allemande L Allemagne fait partie de l aire de la civilisation européenne. Cependant, la notion de culture est perçue de façon différente en France et en… …   Wikipédia en Français

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”