Bacillus and Friends: The Common Shapes of Bacteria
FLOWCHART OF BACTERIAL TESTS: GRAM POSITIVE BACILLI
What is BACILLUS? What does BACILLUS mean? BACILLUS meaning, definition & explanation
A bacillus or bacilliform bacterium is a rod-shaped bacterium or archaeon. Bacilli are found in many different taxonomic groups of bacteria. However, the name Bacillus, capitalized and italicized, refers to a specific genus of bacteria. The name Bacilli, capitalized but not italicized, can also refer to a less specific taxonomic group of bacteria that includes two orders, one of which contains the genus Bacillus. When the word is formatted with lowercase and not italicized, 'bacillus', it will most likely be referring to shape and not to the genus at all. Bacilliform bacteria are also often simply called rods when the bacteriologic context is clear.
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