Ad
related to: streaking microorganisms
Search results
Results From The WOW.Com Content Network
In microbiology, streaking is a technique used to isolate a pure strain from a single species of microorganism, often bacteria. 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.
An inoculation loop (also called a smear loop, inoculation wand or microstreaker) is a simple tool used mainly by microbiologists to pick up and transfer a small sample of microorganisms called inoculum from a microbial culture, e.g. for streaking on a culture plate. [1] [2] This process is called inoculation.
Streaking on streak plates, fish tail inoculation of slant cultures and the inoculation of stab cultures can be done with the inoculation needle. [1] [7] Stab cultures specifically require the inoculation needle and is used to study cell motility, microbial oxygen requirements using Thioglycolate cultures, and the gelatin liquefaction of bacteria.
At some point during a successful "streak", the number of organisms deposited will be such that distinct individual colonies will grow in that area which may be removed for further culturing, using another sterile loop. Another way of plating organisms, next to streaking, on agar plates is the spot analysis. This type of analysis is often used ...
According to the CDC, "Group A strep bacteria can cause many different types of infections that range from minor to serious. The bacteria can also cause inflammatory diseases." The bacteria can ...
In the NASA study, lead author Dr. Bill Wolverton and his team “explored how plants and their associated microorganisms could reduce indoor air pollutants in controlled environments,” notes ...
Streak the mixed culture back and forth in the first quadrant (top left) of the agar plate. Do not cut the agar, simply scrape the top. Flame the loop to rid of culture residue. Wait for it to cool for the next quadrant. Streaking again. Proceed to the second quadrant with streaking. Streaks on the medium will overlap.
Most of those products have a long shelf life, which allows bacteria like listeria more time to grow, even if original contamination is low, he says. Sanitation problems. Sanitation may also be an ...