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.
Медведев вышел в финал турнира в Дубае17:59
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This week, check out one of the most critically acclaimed international films of 2025, as Iranian director Jafar Panahi's It Was Just an Accident comes to digital. Winner of the Palme d'Or at this year's Cannes Film Festival, and nominated for four Golden Globes and two Oscars, it's a major awards season contender for good reason. This tale of former political prisoners trying to get revenge on the man they believe to be their former torturer is equal parts darkly funny and a scathing critique of authoritarianism.
Овечкин продлил безголевую серию в составе Вашингтона09:40