Bacterial cellular morphologies are the shapes that are characteristic of various types of bacteria and often key to their identification. Their direct examination under a light microscope enables the
Staphylococcus bacteria
Coxiella burnetii (TEM)
Campylobacter jejuni is a common pathogen of bacterial food-related gastrointestinal illness.
Thin spirochete Treponema pallidum bacteria, the causative agent of syphilis magnified 400 times.
Gram-positive bacteria
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Gram-positive bacteria are bacteria that give a positive result in the Gram stain test, which is traditionally used to quickly classify bacteria into two broad categories according to their type of ce
Bacterial cellular morphologies
…Sarcina describes a pack-like cuboidal arrangement of eight cocci such as Sarcina ventriculi. The gram-positive cocci are a large group of bacteria with similar morphology. All are spherical or nearly so, but they vary considerably in size. Members of some genera…
Rod-shaped gram-positive Bacillus anthracis bacteria in a cerebrospinal fluid sample stand out from round white blood cells, which also accept the crystal violet stain.
Violet-stained gram-positive cocci and pink-stained gram-negative bacilli
Colonies of a gram-positive pathogen of the oral cavity, Actinomyces sp.