Name: Tessaracoccus Maszenan et al. 1999

Category: Genus

Proposed as: gen. nov.

Etymology: Tes.sa.ra’coc.cus. Gr. num. tessara, four; N.L. masc. n. coccus, grain; N.L. masc. n. Tessaracoccus, four round cells

Gender: masculine (stem: Tessaracocc-)

Type species: Tessaracoccus bendigoensis Maszenan et al. 1999

Conduct genome-based taxonomy of genus at TYGS

16S rRNA gene: Analyse FASTA

Valid publication: Maszenan AM, Seviour RJ, Patel BK, Schumann P, Rees GN. Tessaracoccus bendigoensis gen. nov., sp. nov., a gram-positive coccus occurring in regular packages or tetrads, isolated from activated sludge biomass. Int J Syst Bacteriol 1999; 49:459-468.

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 49, part 2 of the IJSB. Int J Syst Bacteriol 1999; 49:937-939.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Emendations:
  • Zhou et al. 2020 Zhou LY, Zhang JY, Chen XY, Du ZJ, Mu DS. Tessaracoccus antarcticus sp. nov., a rhodopsin-containing bacterium from an Antarctic environment and emended description of the genus Tessaracoccus. Int J Syst Evol Microbiol 2020; 70:1555-1561. Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 70, part 3 of the IJSEM. Int J Syst Evol Microbiol 2020; 70:3583-3587.
    Notes:
    • ⊕ Emendation accompanied by the proposal of 1 new species in the genus.

• Notes:
  • 🙄 This taxon name is occasionally misprinted (or affected by an OCR error) in some sources as: "Tessarococcus".
  • 💁 Taxonomists who have recently focused on this group are the corresponding authors of Kim et al. (2022). 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 phylogenomic assignment score of this taxon is 0.08684 (N = 2).
  • 🎰 The BRCs most frequently used for deposits in this group are: DSM: 10; KCTC: 8; JCM: 7; CCTCC: 3; KACC: 3; KEMB: 2; CCUG: 2; CSUR: 2; CGMCC: 1; MCCC: 1.
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 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.

Subdivision:

Number of child taxa with a validly published and correct name: 16
Number of child taxa with a validly published name, including synonyms: 16
Total number of child taxa: 20

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Tessaracoccus antarcticus Zhou et al. 2020	validly published under the ICNP	correct name
    Tessaracoccus aquimaris Tak et al. 2018	validly published under the ICNP	correct name
    Tessaracoccus arenae Thongphrom et al. 2017	validly published under the ICNP	correct name
    Tessaracoccus bendigoensis Maszenan et al. 1999	validly published under the ICNP	correct name
    Tessaracoccus caeni Wang et al. 2023	validly published under the ICNP	correct name
    Tessaracoccus coleopterorum Hyun et al. 2021	validly published under the ICNP	correct name
    Tessaracoccus defluvii Srinivasan et al. 2017	validly published under the ICNP	correct name
    Tessaracoccus flavescens Lee and Lee 2008	validly published under the ICNP	correct name
    Tessaracoccus flavus Kumari et al. 2016	validly published under the ICNP	correct name
    Tessaracoccus lacteus Tan et al. 2025	validly published under the ICNP	correct name
    Tessaracoccus lapidicaptus Puente-Sánchez et al. 2014	validly published under the ICNP	correct name
    Tessaracoccus lubricantis Kämpfer et al. 2009	validly published under the ICNP	correct name
    "Tessaracoccus massiliensis" Seck et al. 2016	not validly published	preferred name
    "Tessaracoccus nasisuum" Schlattmann et al. 2018	not validly published	preferred name
    Tessaracoccus oleiagri Cai et al. 2011	validly published under the ICNP	correct name
    Tessaracoccus palaemonis Kim et al. 2022	validly published under the ICNP	correct name
    "Tessaracoccus profundi" Finster et al. 2009	not validly published	preferred name
    Tessaracoccus rhinocerotis Li et al. 2016	validly published under the ICNP	correct name
    Tessaracoccus terricola Chaudhary and Kim 2018	validly published under the ICNP	correct name
    "Tessaracoccus timonensis" Fall et al. 2019	not validly published	preferred name

Parent taxon: Propionibacteriaceae Delwiche 1957 (Approved Lists 1980)

Assigned by: Zhi XY, Li WJ, Stackebrandt E. An update of the structure and 16S rRNA gene sequence-based definition of higher ranks of the class Actinobacteria, with the proposal of two new suborders and four new families and emended descriptions of the existing higher taxa. Int J Syst Evol Microbiol 2009; 59:589-608.

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Record number: 516755