-monas

The suffix -monas is used in microbiology for many genera and is intended to mean "unicellular organism".

Meaning

The suffix -monas found in many genera in microbiology is similar in usage to -bacter, -bacillus, -coccus or -spirillum. The genera with the suffix are not a monophyletic group and the suffix is chosen over -bacter, often simply out of stylistic preferences to match with Greek words.

The first genus to be given the suffix -monas was Pseudomonas, a genus of gammaproteobacteria. The generic epithet Pseudomonas was coined by Walter Migula in 1894, who did not give an etymology.[1][2] Since the 7th edition of Bergey's manual (=top authority in bacterial nomenclature), other authors have given the etymology to be: Greek pseudēs (ψευδής, false) and monas (μονάς, single unit or monad), which can mean "false unit".[3] However, "false unit" conceptually does not make much sense, namely, it does not mean "an organism which may falsely appear as a single unit but it is not" as it is not found in multicellular chains nor was it ever described as such. One speculation is that the name was chosen simply out of aesthetics,[4] while the most plausible theory states that Migula intended it as false Monas,[4] a nanoflagellate protist (Chrysophyceae: Ochromonadales: Ochromonadaceae: Chrysomonadida: Ochromonadidae). Subsequently, the term "monas" was used in the early history of microbiology to denote single-celled organisms.[4]

Grammar

In English to make a vernacular name for members of a genus, i.e. trivialising the scientific name, the scientific name is taken and written with sentence case and in roman type (i.e. "standard") as opposed to uppercase italic, the plurals are generally constructed by adding an "s", regardless of Greco-Roman grammar. In the case of genera ending in monas the ending is changed to monad with plural -monads.[5] Example: a member of the genus Pseudomonas is a pseudomonad, while two are pseudomonads. The use of the stem for non-nominative cases is seen more often in botany, where trivialisation is more common, e.g. a bromeliad is a member of the genus Bromelia.

Archaeal genera

Genus Phylum Class Order Family
Natronomonas Euryarchaeota Halobacteria Halobacteriales Halobacteriaceae
Thermogymnomonas Euryarchaeota Thermoplasmata Thermoplasmatales

Bacterial genera

Genus Phylum Class Order Family
Acidomonas Pseudomonadota Alphaproteobacteria Rhodospirillales Acetobacteraceae
Aeromonas Pseudomonadota Gammaproteobacteria Aeromonadales Aeromonadaceae
Agromonas Pseudomonadota Alphaproteobacteria Hyphomicrobiales Nitrobacteraceae
Aidingimonas Pseudomonadota Gammaproteobacteria Oceanospirillales Halomonadaceae
Albimonas Pseudomonadota Alphaproteobacteria Rhodobacterales Rhodobacteraceae
Alkalimonas Pseudomonadota Gammaproteobacteria
Allomonas Pseudomonadota Gammaproteobacteria Vibrionales Vibrionaceae
Alteromonas Pseudomonadota Gammaproteobacteria Alteromonadales Alteromonadaceae
Aminomonas Synergistota Synergistia Synergistales Synergistaceae
Aquimonas Pseudomonadota Gammaproteobacteria Xanthomonadales Xanthomonadaceae
Aquisalimonas Pseudomonadota Gammaproteobacteria Chromatiales Ectothiorhodospiraceae
Arenimonas Pseudomonadota Gammaproteobacteria Xanthomonadales Xanthomonadaceae
Arhodomonas Pseudomonadota Gammaproteobacteria Chromatiales Ectothiorhodospiraceae
Aspromonas Pseudomonadota Gammaproteobacteria Xanthomonadales Xanthomonadaceae
Aurantimonas Pseudomonadota Alphaproteobacteria Hyphomicrobiales Aurantimonadaceae
Azohydromonas Pseudomonadota Betaproteobacteria Burkholderiales Alcaligenaceae
Azomonas Pseudomonadota Gammaproteobacteria Pseudomonadales Pseudomonadaceae
Balneimonas Pseudomonadota Alphaproteobacteria Hyphomicrobiales Nitrobacteraceae
Blastomonas Pseudomonadota Alphaproteobacteria Sphingomonadales Sphingomonadaceae
Brachymonas Pseudomonadota Betaproteobacteria Burkholderiales Comamonadaceae
Brevundimonas Pseudomonadota Alphaproteobacteria Caulobacterales Caulobacteraceae
Butyricimonas Bacteroidota Bacteroidia Bacteroidales Porphyromonadaceae
Caenimonas Pseudomonadota Betaproteobacteria Burkholderiales Comamonadaceae
Caldimonas Pseudomonadota Betaproteobacteria Burkholderiales Comamonadaceae
Camelimonas Pseudomonadota Alphaproteobacteria Hyphomicrobiales Beijerinckiaceae
Carnimonas Pseudomonadota Gammaproteobacteria Oceanospirillales Halomonadaceae
Celerinatantimonas Pseudomonadota Gammaproteobacteria Alteromonadales Celerinatantimonadaceae
Cellulomonas Actinomycetota Actinomycetia Actinomycetales Cellulomonadaceae
Chitinimonas Pseudomonadota Betaproteobacteria Burkholderiales Burkholderiaceae
Chryseomonas Pseudomonadota Gammaproteobacteria Pseudomonadales Pseudomonadaceae
Citreimonas Pseudomonadota Alphaproteobacteria Rhodobacterales Rhodobacteraceae
Cocleimonas Pseudomonadota Gammaproteobacteria
Collimonas Pseudomonadota Betaproteobacteria Burkholderiales Oxalobacteraceae
Comamonas Pseudomonadota Betaproteobacteria Burkholderiales Comamonadaceae
Conglomeromonas Pseudomonadota Alphaproteobacteria Rhodospirillales Rhodospirillaceae
Dechloromonas Pseudomonadota Betaproteobacteria Rhodocyclales Rhodocyclaceae
Dehalogenimonas Chloroflexota Dehalococcoidetes
Desulfomonas Thermodesulfobacteriota Desulfovibrionia Desulfovibrionales Desulfovibrionaceae
Desulfosalsimonas Thermodesulfobacteriota Desulfovibrionia Desulfobacterales Desulfobacteraceae
Desulfuromonas Thermodesulfobacteriota Desulfuromonadia Desulfuromonadales Desulfuromonadaceae
Dysgonomonas Bacteroidota Bacteroidia Bacteroidales Porphyromonadaceae
Endozoicomonas Pseudomonadota Gammaproteobacteria Oceanospirillales Hahellaceae
Epilithonimonas Bacteroidota Flavobacteria Flavobacteriales Flavobacteriaceae
Erythromonas Pseudomonadota Alphaproteobacteria Sphingomonadales Sphingomonadaceae
Ferrimonas Pseudomonadota Gammaproteobacteria Alteromonadales Ferrimonadaceae
Filimonas Bacteroidota Sphingobacteria Sphingobacteriales Chitinophagaceae
Flagellimonas Bacteroidota Flavobacteria Flavobacteriales Flavobacteriaceae
Flavimonas Pseudomonadota Gammaproteobacteria Pseudomonadales Pseudomonadaceae
Fulvimonas Pseudomonadota Gammaproteobacteria Xanthomonadales Xanthomonadaceae
Gallaecimonas Pseudomonadota Gammaproteobacteria
Gemmatimonas Gemmatimonadota Gemmatimonadetes Gemmatimonadales Gemmatimonadaceae
Gracilimonas Bacteroidota Sphingobacteria Sphingobacteriales Chitinophagaceae
Halomonas Pseudomonadota Gammaproteobacteria Oceanospirillales Halomonadaceae
Herminiimonas Pseudomonadota Betaproteobacteria Burkholderiales Oxalobacteraceae
Hydrogenimonas Campylobacterota Campylobacteria Campylobacterales Hydrogenimonaceae
Hyphomonas Pseudomonadota Alphaproteobacteria Caulobacterales Hyphomonadaceae
Kistimonas Pseudomonadota Gammaproteobacteria Oceanospirillales Hahellaceae
Kordiimonas Pseudomonadota Alphaproteobacteria Kordiimonadales Kordiimonadaceae
Lebetimonas Campylobacterota Nautiliia Nautiliales Nautiliaceae
Luteimonas Pseudomonadota Gammaproteobacteria Xanthomonadales Xanthomonadaceae
Lutimonas Bacteroidota Flavobacteria Flavobacteriales Flavobacteriaceae
Macromonas Pseudomonadota Betaproteobacteria Burkholderiales Comamonadaceae
Malonomonas Thermodesulfobacteriota Desulfuromonadia Desulfuromonadales Desulfuromonadaceae
Marinomonas Pseudomonadota Gammaproteobacteria Oceanospirillales Oceanospirillaceae
Maritimimonas Bacteroidota Flavobacteria Flavobacteriales Flavobacteriaceae
Marixanthomonas Bacteroidota Flavobacteria Flavobacteriales Flavobacteriaceae
Megamonas Bacillota Negativicutes Selenomonadales Veillonellaceae
Methylohalomonas Pseudomonadota Gammaproteobacteria
Methylomonas Pseudomonadota Gammaproteobacteria Methylococcales Methylococcaceae
Miniimonas Actinomycetota Actinomycetia Actinomycetales Beutenbergiaceae
Neptunomonas Pseudomonadota Gammaproteobacteria Oceanospirillales Oceanospirillaceae
Nitrosomonas Pseudomonadota Betaproteobacteria Nitrosomonadales Nitrosomonadaceae
Oceanimonas Pseudomonadota Gammaproteobacteria Aeromonadales Aeromonadaceae
Paraferrimonas Pseudomonadota Gammaproteobacteria Alteromonadales Ferrimonadaceae
Parapusillimonas Pseudomonadota Betaproteobacteria Burkholderiales Alcaligenaceae
Parvimonas Bacillota Clostridia Clostridiales
Paucimonas Pseudomonadota Betaproteobacteria Burkholderiales Burkholderiaceae
Pelomonas Pseudomonadota Betaproteobacteria Burkholderiales Comamonadaceae
Petrimonas Bacteroidota Bacteroidia Bacteroidales Porphyromonadaceae
Pleomorphomonas Pseudomonadota Alphaproteobacteria Hyphomicrobiales Methylocystaceae
Plesiomonas Pseudomonadota Gammaproteobacteria Enterobacteriales Enterobacteriaceae
Polaromonas Pseudomonadota Betaproteobacteria Burkholderiales Comamonadaceae
Porphyromonas Bacteroidota Bacteroidia Bacteroidales Porphyromonadaceae
Propionicimonas Actinomycetota Actinomycetia Actinomycetales Propionibacteriaceae
Protomonas Pseudomonadota Alphaproteobacteria Hyphomicrobiales Methylobacteriaceae
Pseudoalteromonas Pseudomonadota Gammaproteobacteria Alteromonadales Pseudoalteromonadaceae
Pseudofulvimonas Pseudomonadota Gammaproteobacteria Xanthomonadales Xanthomonadaceae
Pseudomonas Pseudomonadota Gammaproteobacteria Pseudomonadales Pseudomonadaceae
Pseudoxanthomonas Pseudomonadota Gammaproteobacteria Xanthomonadales Xanthomonadaceae
Psychromonas Pseudomonadota Gammaproteobacteria Alteromonadales Psychromonadaceae
Pusillimonas Pseudomonadota Betaproteobacteria Burkholderiales Alcaligenaceae
Rhizomonas Pseudomonadota Alphaproteobacteria Sphingomonadales Sphingomonadaceae
Rhodopseudomonas Pseudomonadota Alphaproteobacteria Hyphomicrobiales Nitrobacteraceae
Roseomonas Pseudomonadota Alphaproteobacteria Rhodospirillales Acetobacteraceae
Rubrimonas Pseudomonadota Alphaproteobacteria Rhodobacterales Rhodobacteraceae
Rugamonas Pseudomonadota Gammaproteobacteria Pseudomonadales Pseudomonadaceae
Salinarimonas Pseudomonadota Alphaproteobacteria Hyphomicrobiales Nitrobacteraceae
Salinimonas Pseudomonadota Gammaproteobacteria Alteromonadales Alteromonadaceae
Sediminimonas Pseudomonadota Alphaproteobacteria Rhodobacterales Rhodobacteraceae
Selenomonas Bacillota Negativicutes Selenomonadales Veillonellaceae
Silanimonas Pseudomonadota Gammaproteobacteria Xanthomonadales Xanthomonadaceae
Silvimonas Pseudomonadota Betaproteobacteria Neisseriales Neisseriaceae
Singularimonas Pseudomonadota Gammaproteobacteria Xanthomonadales Sinobacteraceae
Sinomonas Actinomycetota Actinomycetia Actinomycetales Micrococcaceae
Solimonas Pseudomonadota Gammaproteobacteria
Sphingomonas Pseudomonadota Alphaproteobacteria Sphingomonadales Sphingomonadaceae
Stenotrophomonas Pseudomonadota Gammaproteobacteria Xanthomonadales Xanthomonadaceae
Succinatimonas Pseudomonadota Gammaproteobacteria Aeromonadales Succinivibrionaceae
Succinimonas Pseudomonadota Gammaproteobacteria Aeromonadales Succinivibrionaceae
Sulfurimonas Campylobacterota Campylobacteria Campylobacterales Helicobacteraceae
Syntrophomonas Bacillota Clostridia Clostridiales Syntrophomonadaceae
Tepidimonas Pseudomonadota Betaproteobacteria Burkholderiales
Terrimonas Bacteroidota Sphingobacteria Sphingobacteriales Chitinophagaceae
Thalassomonas Pseudomonadota Gammaproteobacteria Alteromonadales Colwelliaceae
Thermanaeromonas Bacillota Clostridia Thermoanaerobacterales Thermoanaerobacteraceae
Thermomonas Pseudomonadota Gammaproteobacteria Xanthomonadales Xanthomonadaceae
Thiohalomonas Pseudomonadota Gammaproteobacteria
Thiomonas Pseudomonadota Betaproteobacteria Burkholderiales
Tolumonas Pseudomonadota Gammaproteobacteria Aeromonadales Aeromonadaceae
Tranquillimonas Pseudomonadota Alphaproteobacteria Rhodobacterales Rhodobacteraceae
Tropicimonas Pseudomonadota Alphaproteobacteria Rhodobacterales Rhodobacteraceae
Wohlfahrtiimonas Pseudomonadota Gammaproteobacteria Xanthomonadales Xanthomonadaceae
Xanthomonas Pseudomonadota Gammaproteobacteria Xanthomonadales Xanthomonadaceae
Xylanimonas Actinomycetota Actinomycetia Actinomycetales Promicromonosporaceae
Zymomonas Pseudomonadota Alphaproteobacteria Sphingomonadales Sphingomonadaceae

See also

References

  1. Migula, W. (1894) Über ein neues System der Bakterien. Arb Bakteriol Inst Karlsruhe 1: 235–328.
  2. Migula, W. (1900) System der Bakterien, Vol. 2. Jena, Germany: Gustav Fischer.
  3. Pseudomonas entry in LPSN; Euzéby, J.P. (1997). "List of Bacterial Names with Standing in Nomenclature: a folder available on the Internet". International Journal of Systematic and Evolutionary Microbiology. 47 (2): 590–2. doi:10.1099/00207713-47-2-590. PMID 9103655.
  4. Palleroni, N. J. (2010). "The Pseudomonas Story". Environmental Microbiology. 12 (6): 1377–1383. doi:10.1111/j.1462-2920.2009.02041.x. PMID 20553550.
  5. Buchanan, R. E. (1955). "Taxonomy". Annual Review of Microbiology. 9: 1–20. doi:10.1146/annurev.mi.09.100155.000245. PMID 13259458.
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