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petri dish |
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Petri dish a shallow circular flat-bottomed dish, often with a fitting cover, used in laboratories, esp for producing cultures of microorganisms petri dish [′pē·trē ‚dish] (microbiology) A shallow glass or plastic dish with a loosely fitting overlapping cover used for bacterial plate cultures and plant and animal tissue cultures. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| A bacterial colony on a petri plate consists of millions or billions of microscopic bacterial cells growing together on top of each other to form a macroscopic, visible structure in the approximate shape of a dome. Pulsed high voltage was applied to solidified agarose in 60-mm petri plates with a Chattanooga Intelect Model 500 high-voltage galvanic stimulator(*) using two 5-mm-diameter (3/16-in) stainless steel electrodes placed 3 cm apart in the center of the plate on top of the solidified agarose. Alternatively, the actual current flow through the petri plates was very low because of resistance from the test medium. |
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