Microsoft works for apple2/15/2023 If the agar surface grows microorganisms which are all genetically same, the culture is then considered as a microbiological culture. The dilution or isolation by streaking method was first developed by Loeffler and Gaffky in Koch's laboratory, which involves the dilution of bacteria by systematically streaking them over the exterior of the agar in a Petri dish to obtain isolated colonies which will then grow into quantity of cells, or isolated colonies. The modern streak plate method has progressed from the efforts of Robert Koch and other microbiologists to obtain microbiological cultures of bacteria in order to study them. Samples can then be taken from the resulting colonies and a microbiological culture can be grown on a new plate so that the organism can be identified, studied, or tested. In microbiology, streaking is a technique used to isolate a pure strain from a single species of microorganism, often bacteria. A plate which has been streaked showing the colonies thinning as the streaking moves clockwise.
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