Name: Methylobacterium dichloromethanicum Doronina et al. 2000

Category: Species

Proposed as: sp. nov.

Etymology: di.chlo.ro.me.tha’ni.cum. Gr. fem. n. chlôris; N.L. neut. n. methanum, methane; Gr. adv. dis, two (also Latin adjective); N.L. neut. adj. dichloromethanicum, dichloromethane utilizing

Pronunciation (Latin), gender: me-t^hy-lo-bak-TE-ri-um di-k^hlo-ro-me-T^HA-ni-kum, neuter

Type strain: CIP 106787; DM4; DSM 6343; VKM B-2191

Conduct genome-based taxonomy at

16S rRNA gene: AB175631 Analyse FASTA

Effective publication: Doronina NV, Trotsenko YA, Tourova TP, Kuznetsov BB, Leisinger T. Methylopila helvetica sp. nov. and Methylobacterium dichloromethanicum sp. nov.--novel aerobic facultatively methylotrophic bacteria utilizing dichloromethane. Syst Appl Microbiol 2000; 23:210-218. 🇨🇭

IJSEM list: Anonymous. Validation list no. 77. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2000; 50:1953.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name (and explicitly recommended for medical use)

Risk group: 1

• Synonyms:

  • Name	Kind
    "Methylobacterium extorquens subsp. dichloromethanicum" (Doronina et al. 2000) Alessa et al. 2021	homotypic synonym, not validly published, distinct rank

• Notes:
  • ⏲ According to Alessa et al. (2021), this species is not a later heterotypic synonym of Methylorubrum extorquens (Urakami and Komagata 1984 ex Bassalik 1913) Green and Ardley 2018. Publication: Alessa O, Ogura Y, Fujitani Y, Takami H, Hayashi T, Sahin N, Tani A. Comprehensive Comparative Genomics and Phenotyping of Methylobacterium Species. Front Microbiol 2021; 12:740610. 🇯🇵
  • ⏲ According to Alessa et al. (2021), this species is not a later heterotypic synonym of Methylobacterium extorquens (Urakami and Komagata 1984 ex Bassalik 1913) Bousfield and Green 1985. Publication: Alessa O, Ogura Y, Fujitani Y, Takami H, Hayashi T, Sahin N, Tani A. Comprehensive Comparative Genomics and Phenotyping of Methylobacterium Species. Front Microbiol 2021; 12:740610. 🇯🇵
  • ⏲ According to Alessa et al. (2021), this species is not a later heterotypic synonym of Protomonas extorquens (ex Bassalik 1913) Urakami and Komagata 1984. Publication: Alessa O, Ogura Y, Fujitani Y, Takami H, Hayashi T, Sahin N, Tani A. Comprehensive Comparative Genomics and Phenotyping of Methylobacterium Species. Front Microbiol 2021; 12:740610. 🇯🇵
  • ⏲ According to Kato et al. (2005), this species is a later heterotypic synonym of Methylorubrum extorquens (Urakami and Komagata 1984 ex Bassalik 1913) Green and Ardley 2018. Publication: Kato Y, Asahara M, Arai D, Goto K, Yokota A. Reclassification of Methylobacterium chloromethanicum and Methylobacterium dichloromethanicum as later subjective synonyms of Methylobacterium extorquens and of Methylobacterium lusitanum as a later subjective synonym of Methylobacterium rhodesianum. J Gen Appl Microbiol 2005; 51:287-299. 🇯🇵
  • ⏲ According to Kato et al. (2005), this species is a later heterotypic synonym of Methylobacterium extorquens (Urakami and Komagata 1984 ex Bassalik 1913) Bousfield and Green 1985. Publication: Kato Y, Asahara M, Arai D, Goto K, Yokota A. Reclassification of Methylobacterium chloromethanicum and Methylobacterium dichloromethanicum as later subjective synonyms of Methylobacterium extorquens and of Methylobacterium lusitanum as a later subjective synonym of Methylobacterium rhodesianum. J Gen Appl Microbiol 2005; 51:287-299. 🇯🇵
  • ⏲ According to Kato et al. (2005), this species is a later heterotypic synonym of Protomonas extorquens (ex Bassalik 1913) Urakami and Komagata 1984. Publication: Kato Y, Asahara M, Arai D, Goto K, Yokota A. Reclassification of Methylobacterium chloromethanicum and Methylobacterium dichloromethanicum as later subjective synonyms of Methylobacterium extorquens and of Methylobacterium lusitanum as a later subjective synonym of Methylobacterium rhodesianum. J Gen Appl Microbiol 2005; 51:287-299. 🇯🇵
  • 🧬 The phylogenomic assignment score of this taxon is -0.16718 (N = 4).
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No". — The risk group for Germany has been imported on 2026-08-13. The full classification is: risk group = 1. — If in doubt, use the risk group given in the regulations for your country and, if these are not available, use the risk group given in the catalogue of the culture collection from which you have obtained or intend to obtain the strain.
  • 🎓 Name mentioned 18 times in PubMed until 2026-06-11.
  • 🙆 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as the name to be applied to this species. The name is on LoRN because of the recorded risk group of the genus.
  • 🧍 The phylogenetic position of this species was determined in a genome-scale analysis by Hördt et al. (2020). Publication: Hordt A, Lopez MG, Meier-Kolthoff JP, Schleuning M, Weinhold LM, Tindall BJ, Gronow S, Kyrpides NC, Woyke T, Goker M. Analysis of 1,000+ Type-Strain Genomes Substantially Improves Taxonomic Classification of Alphaproteobacteria. Front Microbiol 2020; 11:468. 🇩🇪

Subdivision:

Number of child taxa with a validly published and correct name: 2
Number of child taxa with a validly published name, including synonyms: 2
Total number of child taxa: 2

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Methylobacterium dichloromethanicum subsp. chloromethanicum (McDonald et al. 2001) Hördt et al. 2020	validly published under the ICNP	correct name
    Methylobacterium dichloromethanicum subsp. dichloromethanicum (Doronina et al. 2000) Hördt et al. 2020	validly published under the ICNP	correct name

Parent taxon: Methylobacterium Patt et al. 1976 (Approved Lists 1980)

Assigned by: Doronina NV, Trotsenko YA, Tourova TP, Kuznetsov BB, Leisinger T. Methylopila helvetica sp. nov. and Methylobacterium dichloromethanicum sp. nov.--novel aerobic facultatively methylotrophic bacteria utilizing dichloromethane. Syst Appl Microbiol 2000; 23:210-218. 🇨🇭

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Record number: 777971