Name: Nannocystis exedens Reichenbach 1970 (Approved Lists 1980)

Category: Species

Proposed as: sp. nov.

Etymology: ex.e’dens. L. inf. v. exedere, to go out, go forth or away, to depart, retire, withdraw; L. fem. part. adj. exedens, retiring, intended to mean eating away, corroding (the agar)

Pronunciation, gender: ex-E-dens, feminine

Type strain: ATCC 25963; DSM 71; Na e1; no type strain cited originally

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: M94279 Analyse FASTA

Effective publication: Reichenbach H. Nannocystis exedens gen. nov., spec. nov., a new myxobacterium of the family Sorangiaceae. Arch Mikrobiol 1970; 70:119-138.

IJSEM list: Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Notes:
  • 🥇 Nomenclatural type of the genus Nannocystis Reichenbach 1970 (Approved Lists 1980). Publication: Reichenbach H. Nannocystis exedens gen. nov., spec. nov., a new myxobacterium of the family Sorangiaceae. Arch Mikrobiol 1970; 70:119-138.
  • 😷 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 Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 1. — The risk group for Germany has been imported on 2023-10-29. 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 14 times in PubMed until 2025-06-04.

Subdivision:

Number of child taxa with a validly published and correct name: 0
Number of child taxa with a validly published name, including synonyms: 0
Total number of child taxa: 5

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    "Nannocystis exedens subsp. aggregans" Reichenbach 2005	not validly published	preferred name
    "Nannocystis exedens subsp. cinnabarina" Reichenbach 2005	not validly published	preferred name
    "Nannocystis exedens subsp. exedens" (Reichenbach 1970) Reichenbach 2005	not validly published	preferred name
    "Nannocystis exedens subsp. glomerata" Reichenbach 2005	not validly published	preferred name
    "Nannocystis exedens subsp. pulla" Reichenbach 2005	not validly published	preferred name

Parent taxon: Nannocystis Reichenbach 1970 (Approved Lists 1980)

Assigned by: Reichenbach H. Nannocystis exedens gen. nov., spec. nov., a new myxobacterium of the family Sorangiaceae. Arch Mikrobiol 1970; 70:119-138.

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Record number: 784450