Types of Bacillus Bacteria

Published on Apr 27, 2015.

1 minute read

The term bacillus may be used interchangeably to describe both a specific genus of bacteria (denoted as Bacillus with capital B) and also in the general sense to describe the shape of many different strains of bacteria. This issue can cause confusion as there are many strains of bacteria of the genus Bacillus that are not of the same shape.

Shape

In the general sense, bacillus refers to any strain of bacteria that are rod-shaped. They are found in many different taxonomic groups and contain Gram-negative as well as Gram-positive strains.

Diplobacillus

Diplobacillus refers to two rod-shaped bacteria connected on one end. This arrangement normally occurs after one bacterium divides and fails to completely separate from the newly formed bacterium.

Streptobacillus

Streptobacillus describes a chain of rod-shaped bacteria joined together from end to end. This again results from the bacterial cells failing to completely separate after dividing as seen with the diplobacillus bacteria.

Coccobacillus

Coccobacillus strains are shortened rods and described as intermediates between spherical coccus bacteria and the aforementioned rod-shaped bacillus. However, despite their resemblance to coccus strains, they are considered bacillus-shaped bacteria.

Shawn Hayes

Contributor

Shawn is a dedicated health and wellness writer, bringing a wealth of experience in nutritional coaching and holistic living. He is passionate about empowering readers to make informed choices about their physical and mental well-being. Outside of writing, Shawn enjoys hiking, mountain biking, and exploring new recipes to share with friends and family.

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