The coliform group referred to the aerobic or facultative anaerobic gram-negative budless bacillus.

大肠菌群是指需氧和兼性厌氧的革兰氏阴性无芽孢杆菌。

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Microscopically, a gram stain reveals gram-negative diplococci within a neutrophil, typical for Neisseria meningitidis.

在显微镜下，革兰氏染色显示中性粒细胞内有革兰氏阴性双球菌，这是脑膜炎奈瑟氏球菌的典型特征。

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Researchers have known for more than 20 years how so-called gram-negative bacteria like Escherichia coli degrade and recycle their RNA.

研究人员在20年前就已经发现了吉姆萨阴性细菌，例如大肠杆菌，可以降解并重新利用其核糖核酸。

article.yeeyan.org

Scientists divide bacteria into so-called "gram positive" varieties like Strep, which lack rigid cell walls and can be stained with dye, and "gram negative" ones that have cell walls and aren't dyeable.

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They tested their treated materials with Staphylococcus aureus and Escherichia coli, the gram-positive and gram-negative bacteria that are always giving humans a bad day.

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