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.
2,073 parseable picks，详情可参考搜狗输入法下载
，这一点在夫子中也有详细论述
略好一点，没以前油了，风格化处理还是不太行
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习近平总书记的回答温暖人心：“我忙就是忙这些事，‘国之大者’就是人民的幸福生活。”