This was not the first time that microbiologists experienced problems with agar. A phenomenon called “The Great Plate Count Anomaly” baffled researchers in the early 20th century when they observed that the number of cells seen under a microscope didn’t match the actual number of colonies growing on an agar plate. Investigating this discrepancy, researchers found agar itself to be the culprit: when nutrient broths are heated with agar during boiling, harmful byproducts (hydroperoxide) can form due to the reaction of agar with phosphate minerals contained in the media. Researchers can avoid this by autoclaving agar separately from the nutrient broth, or by reducing the amount of agar used.
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Sony just divulged the list of PlayStation Plus Monthly Games for March, and there's a little something for everybody. These will all be playable on March 3 for subscribers on any tier. After downloading, the games will stay in a player's library as long as the subscription remains active.
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盗用、冒用个人、组织的身份、名义或者以其他虚假身份招摇撞骗的，处五日以下拘留或者一千元以下罚款；情节较重的，处五日以上十日以下拘留，可以并处一千元以下罚款。