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.
Brotchie hopes the separate collection will impact daily habits and result in less waste being created.
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«Я уверен, что это не украинская ракета. Это, конечно, британская Storm Shadow, которые они поставляют. Украинцы просто свои шильдики вешают на эти ракеты. Это еще раз подтверждает, что за украинцами стоят британцы, французы, скорее всего, еще и немцы», — отреагировал Джабаров.，推荐阅读91视频获取更多信息
Фото: Pierre Albouy / Reuters