Family Geobacteraceae

Name: Geobacteraceae Holmes et al. 2004

Category, proposed as: family, fam. nov.

Etymology: Ge.o.bac.te.ra’ce.ae. N.L. masc. n. Geobacter, the type genus of the family; L. fem. pl. n. suff. -aceae, ending to denote a family; N.L. fem. pl. n. Geobacteraceae, the Geobacter family

Pronunciation (Latin), gender: ge-o-bak-te-RA-ke-a͡e, feminine

Type genus: Geobacter Lovley et al. 1995

Valid publication: Holmes DE, Nevin KP, Lovley DR. Comparison of 16S rRNA, nifD, recA, gyrB, rpoB and fusA genes within the family Geobacteraceae fam. nov. Int J Syst Evol Microbiol 2004; 54:1591-1599. 🇺🇸

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 54, part 5 of the IJSEM. Int J Syst Evol Microbiol 2005; 55:3-5.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

• Synonyms:

  • Name	Kind
    Geobacteraceae Garrity et al. 2006	homotypic synonym, validly published under the ICNP, illegitimate name

• Emendations:
  • Waite et al. 2020 Waite DW, Chuvochina M, Pelikan C, Parks DH, Yilmaz P, Wagner M, Loy A, Naganuma T, Nakai R, Whitman WB, et al. Proposal to reclassify the proteobacterial classes Deltaproteobacteria and Oligoflexia, and the phylum Thermodesulfobacteria into four phyla reflecting major functional capabilities. Int J Syst Evol Microbiol 2020; 70:5972-6016. 🇳🇿 Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 70, part 11 of the IJSEM. Int J Syst Evol Microbiol 2021; 71:4645.
    Notes:
    • ⊕ Emendation accompanied by the inclusion of 3 genera in the family.
    • ⊖ Emendation accompanied by the removal of 8 genera from the family.

• Notes:
  • 🧕 Brenner et al. (2005) assigned this family to the order Desulfuromonadales corrig. Kuever et al. 2006. Publication: Garrity GM, Bell JA, Lilburn T. Family II. Geobacteraceae fam. nov. In: Brenner DJ, Krieg NR, Staley JT, Garrity GM (eds), Bergey's Manual of Systematic Bacteriology, second edition, vol. 2 (The Proteobacteria), part C (The Alpha-, Beta-, Delta-, and Epsilonproteobacteria), Springer, New York, 2005, p. 1017. 🇺🇸
  • 🧒 Holmes et al. (2004) assigned the genus Desulfuromonas Pfennig and Biebl 1977 (Approved Lists 1980) to this family. Publication: Holmes DE, Nevin KP, Lovley DR. Comparison of 16S rRNA, nifD, recA, gyrB, rpoB and fusA genes within the family Geobacteraceae fam. nov. Int J Syst Evol Microbiol 2004; 54:1591-1599. 🇺🇸
  • 🧒 Holmes et al. (2004) assigned the genus Desulfuromusa Liesack and Finster 1994 to this family. Publication: Holmes DE, Nevin KP, Lovley DR. Comparison of 16S rRNA, nifD, recA, gyrB, rpoB and fusA genes within the family Geobacteraceae fam. nov. Int J Syst Evol Microbiol 2004; 54:1591-1599. 🇺🇸
  • 🧒 Holmes et al. (2004) assigned the genus Malonomonas Dehning and Schink 1990 to this family. Publication: Holmes DE, Nevin KP, Lovley DR. Comparison of 16S rRNA, nifD, recA, gyrB, rpoB and fusA genes within the family Geobacteraceae fam. nov. Int J Syst Evol Microbiol 2004; 54:1591-1599. 🇺🇸
  • 🧒 Holmes et al. (2004) assigned the genus Pelobacter Schink and Pfennig 1983 to this family. Publication: Holmes DE, Nevin KP, Lovley DR. Comparison of 16S rRNA, nifD, recA, gyrB, rpoB and fusA genes within the family Geobacteraceae fam. nov. Int J Syst Evol Microbiol 2004; 54:1591-1599. 🇺🇸
  • 🧒 Holmes et al. (2004) assigned the genus Geopsychrobacter Holmes et al. 2005 to this family. Publication: Holmes DE, Nicoll JS, Bond DR, Lovley DR. Potential role of a novel psychrotolerant member of the family Geobacteraceae, Geopsychrobacter electrodiphilus gen. nov., sp. nov., in electricity production by a marine sediment fuel cell. Appl Environ Microbiol 2004; 70:6023-6030. 🇺🇸
  • 🧒 Yilmaz et al. (2014) assigned the genus Geothermobacter Kashefi et al. 2005 to this family. Publication: Yilmaz P, Parfrey LW, Yarza P, Gerken J, Pruesse E, Quast C, Schweer T, Peplies J, Ludwig W, Glöckner FO. The SILVA and “all-species living tree project (LTP)” taxonomic frameworks. Nucleic Acids Research 2014; 42(D1):D643-D648. 🇩🇪
  • 🧒 Zavarzina et al. (2006) assigned the genus Geoalkalibacter Zavarzina et al. 2007 to this family. Publication: Zavarzina DG, Kolganova TV, Bulygina ES, Kostrikina NA, Turova TP, Zavarzin GA. [Geoalkalibacter ferrihydriticus gen. nov., sp. nov., the first alkaliphilic representative of the family Geobacteraceae, isolated from a soda lake]. Mikrobiologiia 2006; 75:775-785. 🇷🇺
  • 💁 Taxonomists who have recently focused on this group are the corresponding authors of Xu et al. (2021), Holmes et al. (2004). Editors in search of reviewers are advised to consider additional criteria such as whether a taxon is covered by one of the ICSP subcommittees.
  • 🎰 The BRCs most frequently used for deposits in this group are: DSM: 33; ATCC: 29; JCM: 24; MCCC: 19; NBRC: 14; KCTC: 7; OCM: 7; GDMCC: 5; UNIQEM: 2; H: 1.
  • 🧍 The family name Geobacteraceae is a N.L. fem. pl. n., not a N.L. neut. pl. n. as cited in the paper by Holmes et al. 2004. — Geobacteraceae Holmes et al. 2004 has priority over Geobacteraceae Garrity et al. 2006. Publication: Garrity GM, Bell JA, Lilburn T. Family II. Geobacteraceae fam. nov. In: Brenner DJ, Krieg NR, Staley JT, Garrity GM (eds), Bergey's Manual of Systematic Bacteriology, second edition, vol. 2 (The Proteobacteria), part C (The Alpha-, Beta-, Delta-, and Epsilonproteobacteria), Springer, New York, 2005, p. 1017. 🇺🇸

Subdivision:

Number of child taxa with a validly published and correct name: 8
Number of child taxa with a validly published name, including synonyms: 10
Total number of child taxa: 14

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Citrifermentans Waite et al. 2020	validly published under the ICNP	synonym
    Geoanaerobacter Xu et al. 2022	validly published under the ICNP	correct name
    Geobacter Lovley et al. 1995	validly published under the ICNP	correct name
    Geomesophilobacter Zhang et al. 2021	validly published under the ICNP	correct name
    "Geomobilibacter" Xu et al. 2021	not validly published	synonym
    Geomobilimonas Xu et al. 2022	validly published under the ICNP	correct name
    Geomonas Xu et al. 2020	validly published under the ICNP	correct name
    "Candidatus Geosyntrophus" Jovicic et al. 2026	not validly published	preferred name
    Geotalea Waite et al. 2020	validly published under the ICNP	correct name
    "Irobacter" Anestis et al. 2026	not validly published	synonym
    Oryzomonas Xu et al. 2020	validly published under the ICNP	correct name
    Pelotalea Xu et al. 2022	validly published under the ICNP	correct name
    "Pseudopelobacter" Waite et al. 2020	not validly published	synonym
    Trichlorobacter De Wever et al. 2001	validly published under the ICNP	synonym

Parent taxon: Geobacterales Waite et al. 2020

Assigned by: Waite DW, Chuvochina M, Pelikan C, Parks DH, Yilmaz P, Wagner M, Loy A, Naganuma T, Nakai R, Whitman WB, et al. Proposal to reclassify the proteobacterial classes Deltaproteobacteria and Oligoflexia, and the phylum Thermodesulfobacteria into four phyla reflecting major functional capabilities. Int J Syst Evol Microbiol 2020; 70:5972-6016. 🇳🇿

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Record number: 564