Opinion: Red lines and Red flags

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'Stem the tide'

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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По словам эксперта, ученые из Южной Кореи впервые продемонстрировали прямую связь между распространенной оральной бактерией Streptococcus mutans (возбудителем кариеса) и механизмами развития Паркинсона. Речь идет о новом исследовании Поханского университета науки и технологий (POSTECH), результаты которого были опубликованы в январе 2026 года.。业内人士推荐搜狗输入法下载作为进阶阅读