A bacillus (PLbacilli), also called a bacilliform bacterium or often just a rod (when the context makes the sense clear), 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.[1]
Bacilli usually divide in the same plane and are solitary, but can combine to form diplobacilli, streptobacilli, and palisades.[2]
Diplobacilli: Two bacilli arranged side by side with each other.
Streptobacilli: Bacilli arranged in chains.
Coccobacillus: Oval and similar to coccus (circular shaped bacterium).[3]
There is no connection between the shape of a bacterium and its color upon Gram staining; there are both gram-positive rods and gram-negative rods. MacConkey agar can be used to distinguish among gram-negative bacilli such as E. coli and salmonella.[4]
^. Midlands Technical College. Archived from the original on 9 August 2016. Retrieved 8 August 2016.
^. Archived from the original on 23 September 2012.
^Kaiser GE. "Sizes, Shapes, and Arrangements of Bacteria". The Community College of Baltimore County. Retrieved 8 August 2016.
^. NYU School of Medicine. Archived from the original on 14 March 2009.
April 27, 2023
bacillus, shape, this, article, needs, additional, citations, verification, please, help, improve, this, article, adding, citations, reliable, sources, unsourced, material, challenged, removed, find, sources, bacillus, shape, news, newspapers, books, scholar, . This article needs additional citations for verification Please help improve this article by adding citations to reliable sources Unsourced material may be challenged and removed Find sources Bacillus shape news newspapers books scholar JSTOR October 2010 Learn how and when to remove this template message A bacillus PL bacilli also called a bacilliform bacterium or often just a rod when the context makes the sense clear 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 1 Bacteria display a large diversity of cellular morphologies and arrangements Bacilli usually divide in the same plane and are solitary but can combine to form diplobacilli streptobacilli and palisades 2 Diplobacilli Two bacilli arranged side by side with each other Streptobacilli Bacilli arranged in chains Coccobacillus Oval and similar to coccus circular shaped bacterium 3 There is no connection between the shape of a bacterium and its color upon Gram staining there are both gram positive rods and gram negative rods MacConkey agar can be used to distinguish among gram negative bacilli such as E coli and salmonella 4 Gram positive examples EditActinomyces Bacillus Clostridium Corynebacterium Listeria PropionibacteriumGram negative examples EditBacteroides Citrobacter Enterobacter Escherichia Klebsiella Pseudomonas Proteus Salmonella Serratia Shigella Vibrio YersiniaReferences Edit The Size Shape And Arrangement Of Bacterial Cells Midlands Technical College Archived from the original on 9 August 2016 Retrieved 8 August 2016 Chapter 4 Functional Anatomy Of Prokaryotic And Eukaryotic Cells Archived from the original on 23 September 2012 Kaiser GE Sizes Shapes and Arrangements of Bacteria The Community College of Baltimore County Retrieved 8 August 2016 Gram Negative Bacilli NYU School of Medicine Archived from the original on 14 March 2009 Retrieved from https en wikipedia org w index php title Bacillus shape amp oldid 1146783242, wikipedia, wiki, book, books, library,
