Minimal Standards
Introduction
See the glossary entry on ☞ minimal standards for the description of new taxa for details, as well as Appendix 6 of the International Code of Nomenclature of Prokaryotes (2008 revision), Int J Syst Evol Microbiol 2019; 69:S1-S111. A list of minimal standards published by taxonomic subcommittees is provided below together with associated publications and assorted by the group of organisms to which each one applies. Note that more recently published proposals for minimal standards may supersede older proposals. The list also includes minutes of the meeting of the same taxonomic subcommittees. The website of the ☞ ICSP also contains information on taxonomic subcommittees.
Aerobic Bacteroidetes
Meeting report: Int J Syst Evol Microbiol 2020; 70:6017-6020. Note: "International Committee on Systematics of Prokaryotes: Subcommittee on the Taxonomy of Aerobic Bacteroidetes (formerly Flavobacterium and Cytophaga-like bacteria)" Affected taxa: Balneolaceae, "Balneolaceae", Bernardetiaceae, Blattabacteriaceae, Chitinophagaceae, Cryomorphaceae, Cyclobacteriaceae, Cytophagaceae, Flammeovirgaceae, Flavobacteriaceae, Haliscomenobacteraceae, Hymenobacteraceae, Lewinellaceae, Marinifilaceae, Marinilabiliaceae, Microscillaceae, Persicobacteraceae, Prolixibacteraceae, Rhodothermaceae, Rubricoccaceae, Salinibacteraceae, Saprospiraceae, Sphingobacteriaceae, Thermonemataceae, Adhaeribacter, Bernardetia, Cryomorpha, Epilithonimonas, Flavobacterium, Flexibacter, Garritya, Luteibaculum, Persicobacter, Phaeodactylibacter, Sphingobacterium, Tenacibaculum.
Meeting report: Int J Syst Evol Microbiol 2017; 67:507-509. Note: "International Committee on Systematics of Prokaryotes Subcommittee on the taxonomy of Aerobic Bacteroidetes (formerly Flavobacterium and Cytophaga-like bacteria). Minutes of the meeting, 30 July 2014, Montreal, Canada" Affected taxa: Cytophagia, Flavobacteriia, Sphingobacteriia, Cryomorphaceae, Cyclobacteriaceae, Flammeovirgaceae, Flavobacteriaceae, Mooreiaceae, Schleiferiaceae, Sphingobacteriaceae, Chryseobacterium, Cryomorpha, Flavobacterium, Mooreia, Owenweeksia, Pibocella, Polaribacter, Pseudomonas, Schleiferia, Tenacibaculum, "Bacteroidetes".
Meeting report: Int J Syst Evol Microbiol 2013; 63:2752-2754. Note: "International Committee on Systematics of Prokaryotes Subcommittee on the taxonomy of Flavobacterium and Cytophaga-like bacteria: Minutes of the meetings, 7 September 2011, Sapporo, Japan" Affected taxa: Bacteroidia, Flavobacteriia, Sphingobacteriia, Blattabacteriaceae, Chitinophagaceae, Cryomorphaceae, Cyclobacteriaceae, Cytophagaceae, Flammeovirgaceae, Flavobacteriaceae, Marinilabiliaceae, Rhodothermaceae, Saprospiraceae, Schleiferiaceae, Sphingobacteriaceae, Capnocytophaga, Flavobacterium, Pedobacter, Sejongia, Sphingobacterium, Tenacibaculum, "Bacteroidetes", "Bacteroidia".
Meeting report: Int J Syst Evol Microbiol 2009; 59:2638-2640. Note: "International Committee on Systematics of Prokaryotes Subcommittee on the taxonomy of Aeromonadaceae, Vibrionaceae and related organisms. Minutes of the meetings, 6 August 2008, Istanbul, Turkey" Affected taxa: Aeromonadaceae, Halobacteriaceae, Vibrionaceae, Aeromonas, Aliivibrio, Photobacterium, Vibrio.
Meeting report: Int J Syst Evol Microbiol 2009; 59:2633-2637. Note: "International Committee on Systematics of Prokaryotes Subcommittee on the taxonomy of Aeromonadaceae, Vibrionaceae and related organisms. Minutes of the Meetings, 25 July 2005, San Francisco, CA, USA" Affected taxa: Aeromonadaceae, Vibrionaceae, Aeromonas, Beneckea, Plesiomonas corrig., Vibrio, "Vibrionales".
Meeting report: Int J Syst Bacteriol 1975; 25:392. Note: "International Committee on Systematic Bacteriology. Subcommittee on the taxonomy of Vibrios. Minutes of the open meeting, 4 September 1974, Tokyo, Japan" Affected taxa: Vibrio.
Meeting report: Int J Syst Bacteriol 1975; 25:389-391. Note: "International Committee on Systematic Bacteriology. Subcommittee on the taxonomy of Vibrios. Minutes of the closed meeting, 3 September 1974, Tokyo, Japan" Affected taxa: Aeromonas, Beneckea, Chromobacterium, Comamonas, Oceanomonas (sic), Pasteurella, Photobacterium, Plesiomonas corrig., Pseudomonas, Vibrio.
Meeting report: Int J Syst Evol Microbiol 2019; 69:1521-1523. Note: "International Committee on Systematics of Prokaryotes Subcommittee on the taxonomy of Bifidobacterium, Lactobacillus and related organisms. Minutes of closed and open meetings, 3 September 2018, Berlin, Germany" Affected taxa: Lactobacillaceae, Leuconostocaceae, Alloscardovia, Bifidobacterium, Galliscardovia, Lactobacillus, Weissella.
Meeting report: Int J Syst Evol Microbiol 2012; 62:2546-2548. Note: "International Committee on Systematics of Prokaryotes. Subcommittee on the taxonomy of Bifidobacterium, Lactobacillus and related organisms. Minutes of the meetings, 31 August 2011, Egmond aan Zee, The Netherlands" Affected taxa: Bifidobacteriaceae, Carnobacteriaceae, Enterococcaceae, Lactobacillaceae, Leuconostocaceae, Bifidobacterium, Carnobacterium, Eggerthia, Fructobacillus, Lactobacillus, Leuconostoc, Paralactobacillus, Pediococcus, Scardovia, Tetragenococcus, Vagococcus, Weissella, Lactobacillales.
Minimal standards: Int J Syst Evol Microbiol 2009; 59:2114-2121. Note: The proposals have been endorsed by the Subcommittee on the Taxonomy of the Genus Bacillus and Related Organisms of the International Committee on Systematics of Prokaryotes. The scope of organisms has also been described as "aerobic, endospore-forming bacteria". Affected taxa: Bacillaceae, Bacillus.
Meeting report: Int J Syst Evol Microbiol 2006; 56:2501-2503. Note: "International Committee on Systematics of Prokaryotes Subcommittee on the Taxonomy of Bifidobacterium, Lactobacillus and Related Organisms. Minutes of the meetings, 1 and 2 April 2005, Stuttgart-Hohenheim, Germany" Affected taxa: Aeriscardovia, Aerococcus, Bifidobacterium, Carnobacterium, Desemzia, Enterococcus, Isobaculum, Lactobacillus, Leuconostoc, Olsenella, Pediococcus, Tetragenococcus, Vagococcus, Weissella.
Meeting report: Int J Syst Evol Microbiol 2001; 51:259-261. Note: "International Committee on Systematic Bacteriology. Subcommittee on the taxonomy of Bifidobacterium, Lactobacillus and related organisms. Minutes of the meetings, 22 and 23 September 1999, Veldhoven, The Netherlands" Affected taxa: Bifidobacteriaceae, Aerococcus, Bifidobacterium, Gardnerella, Lactobacillus, Leuconostoc, Oenococcus, Pediococcus, Tetragenococcus, Trichococcus, Weissella, Bifidobacteriales.
Chlamydiae
Meeting report: Int J Syst Evol Microbiol 2019; 69:3654-3656. Note: "International Committee on Systematics of Prokaryotes (ICSP) Subcommittee on the taxonomy of Chlamydiae. Minutes of the closed meeting, 20 March 2019, Seattle, WA, USA" Affected taxa: Chlamydiae, Chlamydiia, Chlamydiaceae, "Candidatus Rhabdochlamydiaceae", Chlamydia, Chlamydophila, Chlamydiales, Parachlamydiales, "Chlamydiae", "Verrucomicrobia", "Verrucomicrobia", "Verrucomicrobia", "Verrucomicrobiota".
Meeting report: Int J Syst Evol Microbiol 2010; 60:2691-2693. Note: "International Committee on Systematics of Prokaryotes. Subcommittee on the taxonomy of the Chlamydiae: minutes of the inaugural closed meeting, 21 March 2009, Little Rock, AR, USA" Affected taxa: Chlamydia, Chlamydophila, "Criblamydia", "Candidatus Fritschea", Parachlamydia, [Protochlamydia], Simkania, Waddlia.
Enterobacteriaceae
Meeting report: Int J Syst Evol Microbiol 2009; 59:2643-2645. Note: "International Committee on Systematics of Prokaryotes Subcommittee on the taxonomy of Enterobacteriaceae. Minutes of the meetings, 7 August 2008, Istanbul, Turkey" Affected taxa: Enterobacteriaceae, Enterobacteriaceae, Cronobacter, "Cronobacter", Enterobacter, Escherichia, Hafnia, Obesumbacterium, Salmonella, Serratia.
Gram-negative anaerobic rods
Meeting report: Int J Syst Evol Microbiol 2008; 58:1051-1055. Note: "International Committee on Systematics of Prokaryotes; Subcommittee on the taxonomy of Gram-negative anaerobic rods" Affected taxa: Bacteroidaceae, Porphyromonadaceae, Prevotellaceae, Bacillus, Bacteroides, Clostridium, Dysgonomonas, Fusobacterium, Jonquetella, Parabacteroides, Porphyromonas, Prevotella.
Meeting report: Int J Syst Evol Microbiol 2003; 53:923-924. Note: "International Committee on Systematics of Prokaryotes Subcommittee on the taxonomy of Gram-negative anaerobic rods. Minutes of the meeting, 29 July 2002, Paris, France" Affected taxa: Bacteroidaceae, Bacteroides, Cetobacterium, Clostridium, Fusobacterium, Leptotrichia, Porphyromonas, Prevotella, Rikenella, Sneathia, Streptobacillus, Tannerella.
Halobacteriaceae
Meeting report: Int J Syst Evol Microbiol 2016; 66:4291-4295. Note: "International Committee on Systematics of Prokaryotes Subcommittee on the taxonomy of Halobacteriaceae and subcommittee on the taxonomy of Halomonadaceae. Minutes of the joint open meeting, 23 May 2016, San Juan, Puerto Rico" Affected taxa: Haloarculaceae, Halobacteriaceae, Halococcaceae, Haloferacaceae, Halomonadaceae, Halorubraceae, Natrialbaceae, Carnimonas, Chromohalobacter, Cobetia, Haladaptatus, Halanaeroarchaeum, Halapricum, Halarchaeum, Haloarchaeobius, Haloarcula, Halobacterium, Halobellus, Halocalculus, Halococcus, Haloferax, Halogeometricum, Halolamina, Halomicroarcula, Halomonas, Haloparvum, Halopenitus, Haloplanus, Halorhabdus, Halorientalis, Halorubrum, Halorussus, Halosiccatus, Halosimplex, Halostagnicola, Halostella, Halotalea, Halovarius, Halovenus, Halovivax, Kushneria, Larsenimonas, Natrialba, Natribaculum, Salinarchaeum, Salinicola, Haloferacales.
Meeting report: Int J Syst Evol Microbiol 2014; 64:3915-3918. Note: "International Committee on Systematics of Prokaryotes Subcommittee on the taxonomy of Halobacteriaceae and Subcommittee on the taxonomy of Halomonadaceae: minutes of the joint open meeting, 31 July 2014, Montreal, Canada" Affected taxa: Halobacteriaceae, Halomonadaceae, Halalkalicoccus, Halapricum, Halarchaeum, Haloarchaeobius, Halobellus, [Halobonum], Halococcus, [Haloectosymbiotes], Haloferax, Halohasta, Halolamina, Halomicroarcula, Halomonas, Halopelagius, Halopenitus, Halopiger, Haloplanus, Halorientalis, Halorubellus, Halorubrum, Halorussus, Halosimplex, Natronoarchaeum, Natronobacterium, Natronomonas, Salinarchaeum, Salinicola, Salinigranum, Salinirubrum corrig..
Meeting report: Int J Syst Evol Microbiol 2011; 61:2792-2795. Note: "International Committee on Systematics of Prokaryotes Subcommittee on the taxonomy of Halobacteriaceae and Subcommittee on the taxonomy of Halomonadaceae Minutes of the joint open meeting, 6 September 2011, Sapporo, Japan" Affected taxa: Halobacteriaceae, Halomonadaceae, Aidingimonas, Halarchaeum, Haloarchaeobius, Haloarcula, Halobacterium, Halobellus, Halogeometricum, Halogranum, Halolamina, Halomarina, Halomicrobium, Halomonas, Halopelagius, Haloplanus, Halorientalis, Halorubrum, Halosarcina, Halostagnicola, Haloterrigena, Halovenus, Kushneria, Natronoarchaeum, Natronorubrum, Salarchaeum, Halobacteriales.
Meeting report: Int J Syst Evol Microbiol 2008; 58:2465-2467. Note: On 7 August 2008, the subcommittee on the taxonomy of Halobacteriaceae discussed whether any changes in the Recommended Minimal Standards document are necessary at present. It was recommended that the current recommendation for PCR amplification of 16S rRNA genes followed by sequencing of the product should be replaced by cloning and sequencing of a number of 16S rRNA gene clones, this is in view of the presence of multiple copies of the gene with different sequences in many members of the family. No need was felt for additional changes to the Recommended Minimal Standards. Affected taxa: Halobacteriaceae, Halobacteriales.
Meeting report: Int J Syst Evol Microbiol 2002; 52:289-290. Note: "International Committee on Systematics of Prokaryotes. Subcommittee on the taxonomy of Halobacteriaceae" Affected taxa: Halobacteriaceae, Haloarcula, Halobacterium, Halococcus, Haloferax, Halomicrobium, Halorhabdus, Haloterrigena, Natrialba, Natrinema, Natronobacterium, Halobacteriales.
Meeting report: Int J Syst Evol Microbiol 2000; 50:1405-1407. Note: "International Committee on Systematic Bacteriology Subcommittee on the taxonomy of Halobacteriaceae. Minutes of the meetings, 16 August 1999, Sydney, Australia" Affected taxa: Halobacteriaceae, Haloarcula, Halobacterium, Halococcus, Haloferax, Halogeometricum, Halorhabdus, Halorubrum, Halosimplex, Haloterrigena, Natrialba, Natrinema, Natronobacterium, Natronomonas, Natronorubrum, Halobacteriales.
Halomonadaceae
Meeting report: Int J Syst Evol Microbiol 2019; 69:3657-3661. Note: "International Committee on Systematics of Prokaryotes subcommittee on the taxonomy of Halobacteria and subcommittee on the taxonomy of Halomonadaceae. Minutes of the joint open meeting, 26 June 2019, Cluj-Napoca, Romania" Affected taxa: Halobacteria, Haloarculaceae, Halobacteriaceae, Halomonadaceae, Natrialbaceae, Halalkalicoccus, Haloarcula, Halobacterium, Halobium, [Halobonum], Halococcoides, Halococcus, Halodesulfurarchaeum, [Haloectosymbiotes], Haloferax, Halomarina, Halomonas, Halonotius, Haloplanus, Haloprofundus, Halorientalis, Halorubrum, Halorussus, Haloterrigena, Kushneria, Natrarchaeobius, Natrinema, Natronoarchaeum, Natronobiforma, Salinarchaeum, Salinicola, Salinirubellus, Salinirussus, Saliphagus.
Meeting report: Int J Syst Evol Microbiol 2017; 67:4279-4283. Note: "International Committee on Systematics of Prokaryotes Subcommittee on the taxonomy of Halobacteria and Subcommittee on the taxonomy of Halomonadaceae. Minutes of the joint open meeting, 11 July 2017, Valencia, Spain" Affected taxa: Haloarculaceae, Halobacteriaceae, Halococcaceae, Haloferacaceae, Halomonadaceae, Halorubraceae, Natrialbaceae, Halanaeroarchaeum, Haloarcula, Halobaculum, Halobium, Halococcus, Halodesulfurarchaeum, Haloferax, Halolamina, Halomarina, Halomonas, Haloparvum, Halopiger, Haloprofundus, Halorhabdus, Halorubrum, Halorussus, Halostella, Haloterrigena, Larsenimonas, Natrinema, Natronoarchaeum, Natronomonas, Pistricoccus, Salinigranum.
Meeting report: Int J Syst Evol Microbiol 2010; 60:2257-2259. Note: "International Committee on Systematics of Prokaryotes Subcommittee on the taxonomy of Halobacteriaceae and Subcommittee on the taxonomy of Halomonadaceae. Minutes of the meeting 30 June 2010, Beijing, China" Affected taxa: Halobacteriaceae, Halomonadaceae, Cobetia, Haladaptatus, Halarchaeum, Haloarcula, Halobacillus, Halobacterium, Halogeometricum, Halogranum, Halomarina, Halomicrobium, Halomonas, Halonotius, Halopelagius, Halopiger, Haloplanus, Halorubrum, Halosarcina, Halostagnicola, Haloterrigena, Kushneria, Natrinema, Natronoarchaeum, Natronomonas, Natronorubrum, Salinicola, Halobacteriales.
Methanoarchaea
Meeting report: Int J Syst Evol Microbiol 2004; 54:289. Note: "International Committee on Systematics of Prokaryotes Subcommittee on the taxonomy of methanoarchaea. Minutes of the closed meeting, 19 May 2003, Washington, DC, USA"
Minimal standards: Int J Syst Bacteriol 1988; 38:212-219. Note: The Subcommittee on the Taxonomy of Methanoarchaea used to be called Subcommittee for Taxonomy of Methanogenic Bacteria. Affected taxa: Methanosarcinaceae, Methanobacterium, Methanobrevibacter, Methanococcus, Methanogenium, Methanohalophilus, Methanolobus, Methanomicrobium, Methanoplanus, Methanosarcina, Methanosphaera, Methanothermus, Methanothrix.
Micrococcineae
Meeting report: Int J Syst Evol Microbiol 2017; 67:2068-2069. Note: "International Committee on Systematics of Prokaryotes Subcommittee on the taxonomy of the suborder Micrococcineae Minutes of the meeting, 29 July 2014, Montreal, Canada" Affected taxa: Bogoriellaceae, Brevibacteriaceae, Cellulomonadaceae, Demequinaceae, Dermacoccaceae, Microbacteriaceae, Micrococcaceae, Promicromonosporaceae, Micrococcineae.
Mollicutes
Meeting report: Int J Syst Evol Microbiol 2019; 69:2169-2171. Note: "International Committee on Systematics of Prokaryotes Subcommittee on the taxonomy of Mollicutes: Minutes of the closed meeting, 8 July 2018, Portsmouth, New Hampshire, USA" Affected taxa: Metamycoplasmataceae, Mycoplasmoidaceae, Mesomycoplasma, Mycoplasma, Mycoplasmoides, "Candidatus Phytoplasma", Entomoplasmatales, Mycoplasmoidales.
Meeting report: Int J Syst Evol Microbiol 2014; 64:3904-3906. Note: "International Committee on Systematics of Prokaryotes Subcommittee on the taxonomy of Mollicutes: minutes of the meetings (closed and open), 1 and 5 June 2014, Blumenau SC, Brazil" Affected taxa: Erysipelotrichia, Acholeplasmataceae, Entomoplasmataceae, Spiroplasmataceae, [Hepatoplasma], Mycoplasma, "Candidatus Phytoplasma", Ureaplasma, Acholeplasmatales, Anaeroplasmatales, Entomoplasmatales, Mycoplasmatales.
Meeting report: Int J Syst Evol Microbiol 2013; 63:2361-2364. Note: "International Committee on Systematics of Prokaryotes. Subcommittee on the taxonomy of Mollicutes: Minutes of the meetings, July 15th and 19th 2012, Toulouse, France" Affected taxa: "Candidatus Bacilloplasma", Bartonella, Eperythrozoon, Haloplasma, [Hepatoplasma], Mycoplasma, "Candidatus Phytoplasma", Thermoplasma, Ureaplasma, Anaeroplasmatales.
Meeting report: Int J Syst Evol Microbiol 2001; 51:2227-2230. Note: "International Committee on Systematics of Prokaryotes. Subcommittee on the taxonomy of mollicutes. Minutes of the interim meetings, 13 and 19 July 2000, Fukuoka, Japan" Affected taxa: Mollicutes, Entomoplasmataceae, Spiroplasmataceae, Acholeplasma, Entomoplasma, Eperythrozoon, Haemobartonella, Mycoplasma, "Candidatus Phytoplasma", Spiroplasma, Ureaplasma, Entomoplasmatales.
Meeting report: Int J Syst Evol Microbiol 2000; 50:1393-1397. Note: "International Committee on Systematic Bacteriology Subcommittee on the taxonomy of Mollicutes. Minutes of the meetings, 21 and 28 July 1998, Sydney, Australia" Affected taxa: Mollicutes, Anaplasmataceae, Entomoplasmataceae, Spiroplasmataceae, Acholeplasma, Entomoplasma, Eperythrozoon, Haemobartonella, Mesoplasma, Mycoplasma, "Candidatus Phytoplasma", Spiroplasma, Ureaplasma, Entomoplasmatales, Rickettsiales.
Minimal standards: Int J Syst Bacteriol 1995; 45:605-612. Note: R.F. Whitcomb (Chair), J.G. Tully (Secretary), J.M. Bové, J.M. Badbury, G. Christiansen, I. Kahane, B.C. Kirkpatrick, F. Laigret, R.H. Leach, H.C. Neimark, J.D. Pollack, S. Razin, B.B. Sears, and D. Taylor-Robinson. Affected taxa: Mollicutes.
Minimal standards: Int J Syst Bacteriol 1979; 29:172-180. Note: E.A. Freundt (Chairman), R.F. Whitcomb (Secretary), M.F. Barile, J.M. Bové, G.S. Cottew, H. Ernø, R. Lemcke, J. Maniloff, H. Neimark, S. Razin, D. Taylor-Robinson, J.G. Tully and P. Whittlestone. Affected taxa: Mollicutes.
Meeting report: Int J Syst Evol Microbiol 2012; 62:257-258. Note: "International Committee on Systematics of Prokaryotes. Subcommittee on the taxonomy of Pasteurellaceae: minutes of the meetings, 25 August 2011, Elsinore, Denmark" Affected taxa: Pasteurellaceae, Actinobacillus, Basfia, Bisgaardia, Chelonobacter, Haemophilus, Mannheimia, Necropsobacter, Pasteurella.
Minimal standards: Int J Syst Evol Microbiol 2007; 57:166-178. Note: Former member of the ICSP Subcommittee on the taxonomy of Pasteurellaceae Mogens Kilian and present members Patrick Blackall, Robert Davies, Olivier Gaillot, Thomas Inzana, Reinier Mutters and Niels Nørskov-Lauritsen, although not co-authors of the paper, taked part in these minimal standards. Affected taxa: Pasteurellaceae.
Meeting report: Int J Syst Evol Microbiol 2014; 64:3907-3909. Note: "International Committee on Systematics of Prokaryotes Subcommittee on the taxonomy of phototrophic bacteria: minutes of the meetings, 11 August 2009, Montreal, Canada" Affected taxa: Afifella, Allochromatium, Chlorobaculum, Halochromatium, Marichromatium, Phaeospirillum, Prosthecochloris, Rhodobacter, Rhodobium, Rhodoblastus, Rhodoferax, Rhodoplanes, Rhodospirillum, Rhodovastum, Rhodovulum, Roseospira, Thiocapsa, Thiohalocapsa, Thiophaeococcus, Thiorhodococcus, "Cyanobacteria", "Cyanobacteria", "Cyanobacteria".
Meeting report: Int J Syst Evol Microbiol 2002; 52:2335-2336. Note: "International Committee on Systematics of Prokaryotes Subcommittee on the taxonomy of phototrophic bacteria. Minutes of the Meetings, 28 August 2000, Barcelona, Spain" Affected taxa: Chlorobiaceae, Chloroflexaceae, Halobacteriaceae, Allochromatium, Amoebobacter, Blastomonas, Chlorobium, Chloroflexus, Chromatium, "Citromicrobium", Craurococcus, Ectothiorhodospira, Erythromonas, Halochromatium, Heliophilum, Isochromatium, Lamprocystis, Marichromatium, Pfennigia, Phaeospirillum, Rhodobacter, Rhodospirillum, Rhodothalassium, Rhodovibrio, Rhodovulum, Roseateles, Roseibium, Roseiflexus, Roseivivax, Roseobacter, Roseospirillum, Roseovarius, Rubrimonas, Ruegeria, Thioalkalicoccus corrig., Thiocapsa, Thiococcus, Thiocystis, Thiorhodospira, Prochlorales.
Meeting report: Int J Syst Bacteriol 1999; 49:925-926. Note: "International Committee on Systematic Bacteriology - Subcommittee on the taxonomy of phototrophic bacteria. Minutes of the meetings, 10 September 1997, Vienna, Austria" Affected taxa: Chlorobiaceae, Chloroflexaceae, Chromatiaceae, Ectothiorhodospiraceae, Blastochloris, Chlorobium, Chromatium, Ectothiorhodospira, Erythrobacter, Erythromicrobium, Halorhodospira, Heliobacterium, Heliophilum, Prosthecochloris, Rhodobacter, Rhodobium, Rhodocista, Rhodoplanes, Rhodopseudomonas, Rhodospira, Rhodospirillum, Roseobacter, Thiocapsa, Thiopedia, Thiorhodococcus, Thiospirillum.
Rhizobia and agrobacteria
Meeting report: Int J Syst Evol Microbiol 2020; 70:3563-3571. Note: "International Committee on Systematics of Prokaryotes Subcommittee on the Taxonomy of Rhizobia and Agrobacteria Minutes of the closed meeting by videoconference, 17 July 2019" Affected taxa: Agrobacterium, Allorhizobium, Bosea, Bradyrhizobium, Cupriavidus, Devosia, Ensifer, Mesorhizobium, Methylobacterium, Microvirga, Ochrobactrum, Paraburkholderia, Pseudorhizobium, Rhizobium.
Meeting report: Int J Syst Evol Microbiol 2019; 69:1835-1840. Note: "International Committee on Systematics of Prokaryotes Subcommittee on the Taxonomy of Rhizobia and Agrobacteria Minutes of the meeting by video conference, 11 July 2018" Affected taxa: Burkholderiaceae, Rhizobiaceae, Agrobacterium, Bradyrhizobium, Ensifer, Labrys, Mesorhizobium, Methylorubrum, Micrococcus, Microvirga, Neorhizobium, Paraburkholderia, Pararhizobium, Phyllobacterium, Rhizobium, Sinorhizobium.
Meeting report: Int J Syst Evol Microbiol 2018; 68:3363-3368. Note: "International Committee on Systematics of Prokaryotes Subcommittee on the taxonomy of rhizobia and agrobacteria Minutes of the closed meeting, Granada, 4 September 2017" Affected taxa: Rhizobiaceae, Agrobacterium, Allorhizobium, Bosea, Bradyrhizobium, Ciceribacter, Mesorhizobium, Microvirga, Neorhizobium, Pararhizobium, Rhizobium, Sinorhizobium.
Meeting report: Int J Syst Evol Microbiol 2017; 67:2485-2494. Note: "International Committee on Systematics of Prokaryotes Subcommittee for the Taxonomy of Rhizobium and Agrobacterium Minutes of the meeting, Budapest, 25 August 2016" Affected taxa: Rhizobiaceae, Agrobacterium, Allorhizobium, Blastobacter, Bosea, Bradyrhizobium, Burkholderia, Caballeronia, Ensifer, Mesorhizobium, Microvirga, Neorhizobium, Paraburkholderia, Pararhizobium, Phyllobacterium, Rhizobium, Robbsia, Sinorhizobium.
Meeting report: Int J Syst Evol Microbiol 2017; 67:516-520. Note: "International Committee on Systematics of Prokaryotes Subcommittee on the taxonomy of Agrobacterium and Rhizobium Minutes of the meeting, 7 September 2014, Tenerife, Spain" Affected taxa: Agromonas, Aminobacter, Azorhizobium, Blastobacter, Bosea, Bradyrhizobium, Burkholderia, Ciceribacter, Ensifer, Mesorhizobium, Microvirga, Ochrobactrum, Phyllobacterium, Rhizobium.
Meeting report: Int J Syst Evol Microbiol 2011; 61:3089-3093. Note: "International Committee on Systematics of Prokaryotes Subcommittee on the taxonomy of Agrobacterium and Rhizobium: minutes of the meeting, 7 September 2010, Geneva, Switzerland" Affected taxa: Rhizobiaceae, Agrobacterium, Allorhizobium, Blastobacter, Bradyrhizobium, Ensifer, Rhizobium, Sinorhizobium.
Meeting report: Int J Syst Evol Microbiol 2009; 59:921-922. Note: "International committee on systematics of prokaryotes; subcommittee on the taxonomy of agrobacterium and rhizobium: minutes of the meetings, 31 August 2008, Gent, Belgium" Affected taxa: Burkholderia, Ensifer, Mesorhizobium, Ochrobactrum, Phyllobacterium, Rhizobium, Shinella, Sinorhizobium.
Staphylococci and streptococci
Meeting report: Int J Syst Evol Microbiol 2003; 53:915-917. Note: According to the "Subcommittee on the Taxonomy of Staphylococci and Streptococci" some of the recommendations stated in the "Recommended minimal standards" are possibly impractical in certain cases, particularly the requirement for peptidoglycan types. Affected taxa: Staphylococcus, Streptococcus.