Version 3.1.0 goes live on Monday, 2 November 2026.
Profile database 3.1.0 now covers 23,265 taxa, up from 22,914 in 3.0.0: 367 newly added species and subspecies, 21 genomospecies resolved to official names, and updated nomenclature throughout.
| 3.0.0 | 3.1.0 | |
|---|---|---|
| Taxa with at least one profile | 22,914 | 23,265 |
| of which genomospecies (MabrTax) | 1,272 | 1,252 |
| Change | Taxa |
|---|---|
| Newly added species / subspecies | 367 |
| Genomospecies now carrying an official name | 21 |
| Renamed or reclassified | 15 |
| Merged into another taxon | 7 |
| Removed | 8 |
The update is based on the latest public genome data and current prokaryotic taxonomy (September 2026). Identification results may now show a different name for the same organism; the tables below map old names to new ones.
Updated species classifiers
Our species classifiers have been updated with the latest reference genomes. In our validation this gives a clearly better identification rate at species level, with fewerambiguous results and fewer misidentifications. Several species groups now also cover species that were missing until now.
Species change: Bacillus bombysepticus is merged into B. cereus. The two cannot be distinguished by their ribosomal protein masses, so results that previously read B. bombysepticus are now reported as B. cereus.
New species
367 species and subspecies are identifiable for the first time; 277 of them include the type strain. A selection from clinically, food- and environmentally relevant genera:
| Genus | New in 3.1.0 |
|---|---|
| Streptococcus | S. intestinihominis, S. mobilis, S. nakanonensis, S. nasisuis |
| Staphylococcus | S. xeri |
| Enterococcus | E. leclercqii |
| Mycobacterium | M. ahvazicum, M. shunyiense, M. toneyamaense |
| Nocardia | N. aegles, N. citri, N. glycosmidis, N. spongicola |
| Treponema | T. pallidum (incl. subsp. endemicum, subsp. pertenue), T. socranskii subsp. buccale |
| Rickettsia | R. conorii subsp. caspia, R. conorii subsp. indica, R. finnyi, R. kotlanii |
| Legionella | L. navarrensis, L. pelazae |
| Aggregatibacter | A. animalimorsus, A. valvarum |
| Fusobacterium | F. abscessus |
| Cutibacterium | C. nasicola |
| Moraxella | M. tarda |
| Pseudomonas | P. acericola, P. cistanchae, P. gebzensis |
| Vibrio | V. frigidus, V. limimangrovi, V. phycocola, V. rubrogenes, V. sediminis |
| Aeromonas | A. aquatilis |
| Arcobacter | A. denitrificans, A. siniprincipis |
| Lactococcus | L. cremoris subsp. sagaensis |
| Ligilactobacillus | L. aviarius |
| Pantoea | P. agglomerans subsp. jekyllhydei |
| Pectobacterium / Dickeya / Erwinia | P. artocarpous, P. hainanensis, D. dadantii subsp. dadantii, E. tracheiphila |
The largest additions by genus are Streptomyces (13), Pseudarthrobacter (10), Paenibacillus, Microbacterium and Hymenobacter (6 each). The complete list is in the appendix.
Genomospecies now carrying an official name
21 genomospecies that 3.0.0 reported as “MabrTax GCF_…” are now reported under an official species name. A result that previously read e.g. “Pseudomonas MabrTax GCF_000019125” now reads “Pseudomonas hunanensis”.
| Reported in 3.0.0 | Reported in 3.1.0 |
|---|---|
| Acinetobacter MabrTax GCF_002296655 | Acinetobacter pengchengensis |
| Actinomyces MabrTax GCF_023369515 | Actinomyces cricetomys |
| Aggregatibacter MabrTax GCF_000226755 | Aggregatibacter holmi |
| Aquidulcibacter MabrTax GCF_964806215 | Aquidulcibacter miladensis |
| Curtobacterium MabrTax GCF_000772085 | Curtobacterium uvaldense |
| Enterobacter MabrTax GCF_001888805 | Enterobacter sisselensis |
| Mycobacterium MabrTax GCF_045310825 | Mycobacterium toneyamaense |
| Novosphingobium MabrTax GCF_001298105 | Novosphingobium aeonii |
| Peribacillus MabrTax GCF_044761765 | Peribacillus suis |
| Pseudoalteromonas MabrTax GCF_004792295 | Pseudoalteromonas thalassia |
| Pseudomonas MabrTax GCF_000019125 | Pseudomonas hunanensis |
| Pseudomonas MabrTax GCF_003732465 | Pseudomonas texasensis |
| Pseudomonas MabrTax GCF_035615335 | Pseudomonas shiyinii |
| Rhizobium MabrTax GCF_000371905 | Rhizobium zaerense |
| Sphingorhabdus MabrTax GCF_030729295 | Sphingorhabdus communis |
| Sphingorhabdus MabrTax GCF_964676085 | Sphingorhabdus rara |
| Staphylococcus MabrTax GCF_025558405 | Staphylococcus dromedarii |
| Streptococcus MabrTax GCF_013276615 | Streptococcus parapneumoniae |
| Streptomyces MabrTax GCF_040642775 | Streptomyces pallidus |
| Streptomyces MabrTax GCF_056491145 | Streptomyces diversicolor |
| Yersinia MabrTax GCF_002082245 | Yersinia antarctica |
Renamed, reclassified and merged taxa
22 taxa are now reported under a different name, following current taxonomy or a spelling correction. Identification of these organisms is unchanged; only the reported name differs.
| Reported in 3.0.0 | Reported in 3.1.0 | Reason |
|---|---|---|
| Alkalispirochaeta sphaeroplastigenens | Alkalispirochaeta alkalica | Later heterotypic synonym (Scranton et al. 2026, IJSEM) |
| Anaeroarcus burkinensis | Anaeromusa burkinensis | Transferred to Anaeromusa (Heng 2026, IJSEM) |
| Caecibacteroides pullorum (duplicate entry) | Caecibacteroides pullorum | Duplicate entry removed (Mabritec data correction) |
| Chryseobacterium instestini | Chryseobacterium intestini | Spelling corrected (Zhang et al. 2026); name not yet validly published |
| Cloacimonas acidaminovorans | Cloacimonas acidaminivorans | Spelling corrected (Pelletier et al. 2008) |
| Fredinandcohnia aciditolerans | Ferdinandcohnia aciditolerans | Genus spelling corrected (Gupta et al. 2020, IJSEM) |
| Fredinandcohnia humi | Ferdinandcohnia humi | Genus spelling corrected (Gupta et al. 2020, IJSEM) |
| Gordonia sedimidis | Gordonia sediminis | Spelling corrected (Sangkanu et al. 2019, IJSEM) |
| Gulbenkiania indica | Gulbenkiania mobilis | Listed as synonym of G. mobilis in LPSN (no publication cited) |
| Kitasatospora cinereorecta | Streptomyces argenteolus | Mabritec, genome-based: the genomes behind this name are S. argenteolus (99.6 % ANI to type strain DSM 40226) |
| Kitasatospora paracochleata | Kitasatospora cinereorecta | Later heterotypic synonym (Li et al. 2026, J Antibiot); not yet in an IJSEM list |
| Morganella sibonii subsp. sibonii | Morganella sibonii | Species rank proposed by Bonnin et al. 2024 (Lancet Microbe); not yet validly published |
| Nesterenkonia jeotgali | Nesterenkonia sandarakina | Genome-based (type strains share > 99.9 % ANI), following NCBI; no published synonymy |
| Photorhabdus australis | Photorhabdus australis subsp. australis | Type subspecies since subsp. thailandensis was described (Machado et al. 2021, IJSEM); same organism |
| Photorhabdus khanii | Photorhabdus khanii subsp. khanii | Type subspecies since subsp. guanajuatensis was described (Machado et al. 2019, IJSEM); same organism |
| Provencibacterium massiliense | Harryflintia acetispora | Name never validly published; genome matches the H. acetispora type strain (Mabritec, genome-based) |
| Shouchella miscanthi | Shouchella hunanensis | Later heterotypic synonym (Liu et al. 2026, IJSEM) |
| Stenotrophomonas oleivorans | Stenotrophomonas mexicanensis / S. mexicanensis subsp. fluminensis | Following NCBI; none of these names is validly published yet |
| Streptomyces thermoviolaceus | S. thermoviolaceus subsp. apingens / subsp. thermoviolaceus | Long-established subspecies (Approved Lists 1980), now resolved in the reference genomes |
| Thermoanaerobacter pentosaceus | Thermoanaerobacter thermocopriae | Later heterotypic synonym (Bouras et al. 2026, Anaerobe) |
| Tropicibacter oceani | Pacificoceanicola oceani | Transferred to Pacificoceanicola (Wang et al. 2026, IJSEM) |
Removed taxa
8 taxa from 3.0.0 no longer have a profile. Most are placeholder or invalid names, or their reference genomes are no longer in the reference set.
| Taxon in 3.0.0 | Reason |
|---|---|
| Bacillus bombysepticus | Merged into B. cereus; indistinguishable by ribosomal protein masses |
| Chryseobacillus diguaensis | Reference genome no longer in the reference set |
| Enterobacter strain JCM 8580 | Strain placeholder, not a species |
| Ferribacterium limneticum | Reference genomes no longer in the reference set |
| Mycobacteroides chelonae (without subspecies) | Still covered by subsp. chelonae, bovistauri and gwanakae |
| Paenibacillus strain DLE-14 | Strain placeholder, not a species |
| Paenibacillus strain sgz302164 | Strain placeholder, not a species |
| Streptococcus viridans | Not a valid species name |
Downloads
- All changes from 3.0.0 to 3.1.0: 419 entries, one row per taxon, with the type of change, old and new name, and whether the type strain is included