Why you label on the bottom and the edge of the agar plate?
Why do you label plates on the bottom, not on the lid? After the culture medium is set, and streaked with the required microbe/stock, the lid is put on and the petri dish is incubated upside down to minimize contamination. So, it is easier to read the label on the bottom.
How should you label a petri dish?
Proper method to label a petri plate prior to pour plating/inoculation, with initials, date, medium used, and source or dilution plated. Note the plate is labeled on the bottom edge, and should be incubated in this inverted orientation as well.
Should information on a petri dish be on the lid or bottom?
During storage (in refrigerator, but not to freeze) the agar plates should be placed in an inverted position with the lid at the bottom. This prevents the condensation from dripping down on to the surface of the agar, which may allow for the movement of the organisms from one colony to another.
Why do we label plates with marker and not tape why on the bottom of the plate instead of the lid?
When labelling petri dishes, use marker and write directly on the bottom of the plate, close to its periphery, to prevent obscuring observation of the results after incubation. Incubation procedure: temp: for most microorganisms used in this lab the optimal temperature for growth is 37 degrees Celsius.
Where should a label be written on an agar plate Why?
Label around the edge of the bottom (not the lid) of an agar plate with at least your name, the date, the type of growth medium, and the type of organism to be plated on the medium. The plates must be completely dry without condensation on the lid and pre-warmed to room temperature prior to streak-plating.
Where should a label be written on an agar plate?
Label around the edge of the bottom (not the lid) of an agar plate with at least your name, the date, the type of growth medium, and the type of organism to be plated on the medium.
What is in the bottom of a petri dish?
The culture medium is often an agar plate, a layer a few mm thick of agar or agarose gel containing whatever nutrients the organism requires (such as blood, salts, carbohydrates, amino acids) and other desired ingredients (such as dyes, indicators, and medicinal drugs).
Why are we going to use blood agar plates?
Protocols Blood Agar Plates and Hemolysis Many species of bacteria produce toxic by-products that are capable of destroying red blood cells. Blood agar is a general purpose, enriched medium often used to grow fastidious organisms and to differentiate bacteria based on their hemolytic properties.