Mesobacillus
bacteria in the family Bacillaceae

Mesobacillus is a genus of gram-positive or gram-variable, rod-shaped bacteria in the family Bacillaceae within the order Bacillales. The type species for this genus is Mesobacillus jeotgali.
Members of Mesobacillus was transferred from the genus Bacillus. Bacillus is a large, phylogenetically complicated genus, with unclear interspecies evolutionary relationships due to the vague criteria used to assign species into the genus. The efforts of multiple phylogenetic and comparative genomics analyses studies have transferred many Bacillus species into novel genera such as Virgibacillus, Solibacillus, Brevibacillus and Ectobacillus. The genus itself has also been emended and restricted to only include species closely related to Bacillus subtilis and Bacillus cereus.
The name Mesobacillus is derived from its taxonomic position in phylogenetic trees. The prefix "meso-" comes from the Greek adjective mesos, and translates to "middle". Bacillus comes from the Latin noun bacillus, referring to both 'a small staff or rod' and Bacillus, the bacterial genus. Put together, the name Mesobacillus refers to a genus in between other Bacillus.
“Mesobacillus” enters the record as bacteria in the family Bacillaceae. Crown Archives preserves that source wording while asking what Mesobacillus, bacteria and family can confirm, complicate or overturn.
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The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Aug 24, 2026. The linked authority identifier is Q107210973. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “Mesobacillus” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.