The results showed that Bacillus natto could inhibit not only some kinds of gram positive and gram negative bacteria, but also some kinds of yeasts and moulds.

结果表明，纳豆菌具广谱抗菌作用，对细菌、 酵母菌和霉菌皆有一定的拮抗作用。

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The strain was gram negative, ellipse cell, no spores and no flagellum.

菌株细胞呈椭球形，革兰氏阴性，不产芽孢，无鞭毛。

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Objective: To investigate the resistance of the gram negative bacteria.

目的：了解革兰氏阴性杆菌对多种广谱抗生素的耐药情况。

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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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There is particular concern about Gram-negative bacteria (like E.coli and K. pneumonia), due to their outer membrane which can prevent some antibiotics from penetrating the cell.

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