Name: Amoebobacter purpureus Eichler and Pfennig 1989

Category: Species

Proposed as: sp. nov.

Etymology: pur.pur’e.us. L. masc. adj. purpureus, purple or purple-red

Gender: masculine

Type strain: ATCC 49210; BN 4450; DSM 4197; Schleinsee; Strain ThScb 12; ThSch 12

Conduct genome-based taxonomy at

16S rRNA gene: AJ223235 Analyse FASTA

Effective publication: Eichler B, Pfennig N. A new.purple sulfur bacterium from stratified freshwater lakes, Amoebobacter purpureus sp. nov. Arch. Microbiol. 1988; 149:395-400.

IJSEM list: Anonymous. Validation list no. 29. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1989; 39:205-206.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Lamprocystis purpurea (Eichler and Pfennig 1989) Imhoff 2001

Risk group: 1

• Synonyms:

  • Name	Kind
    Pfennigia purpurea (Eichler and Pfennig 1989) Tindall 1999	homotypic synonym, validly published under the ICNP
    Lamprocystis purpurea (Eichler and Pfennig 1989) Imhoff 2001	homotypic synonym, validly published under the ICNP

• Emendations:
  • Guyoneaud et al. 1998 Guyoneaud R, Suling J, Petri R, Matheron R, Caumette P, Pfennig N, Imhoff JF. Taxonomic rearrangements of the genera Thiocapsa and Amoebobacter on the basis of 16S rDNA sequence analyses, and description of Thiolamprovum gen. nov. Int J Syst Bacteriol 1998; 48:957-964.
    Notes:
    • The e-mail address of the corresponding author given in the associated publication is not functional any more.
    • This emendation was not found in the expected IJSEM notification list.

• Notes:
  • Amoebobacter purpureus is the correct name if this species is regarded as a separate species (i.e., if its nomenclatural type is not assigned to another species whose name is validly published, legitimate and not rejected and has priority) within a separate genus Amoebobacter.
  • Guyoneaud et al. 1998 propose the transfer of Amoebobacter roseus (the type species of the genus Amoebobacter) to the genus Thiocapsa [Thiocapsa rosea (Winogradsky 1888) Guyoneaud et al. 1998, comb. nov.] and a new type species for the genus Amoebobacter (Amoebobacter purpureus Eichler and Pfennig 1989). However, according to Rule 37a (1) "the name of a taxon must be changed if the nomenclatural type is excluded" and according to Rule 37a (2) "retention of a name in a sense which excludes the type can only be effected by conservation and only by the Judicial Commission". Publication: Winogradsky S. Beiträge zur Morphologie und Physiologie der Bacterien. Heft I. Zur Morphologie und Physiologie der Schwefelbacterien. Arthur Felix, Leipzig, 1888.
  • In order to solve the confusion caused by the publication of Guyoneaud et al. 1998 [1], Tindall 1999 [2] proposes that Amoebobacter purpureus Eichler and Pfennig 1989 be transferred to a new genus, Pfennigia as Pfennigia purpurea (Eichler and Pfennig 1989) Tindall 1999, comb. nov. Publication: Tindall BJ. Taxonomic note: transfer of Amoebobacter purpureus to the genus Pfennigia gen. nov. as Pfennigia purpurea comb. nov., on the basis of the illegitimate proposal to make Amoebobacter purpureus the type species of the genus Amoebobacter. Int. J. Syst. Bacteriol. 1999; 49:1307-1308.

Parent taxon: Amoebobacter Winogradsky 1888 (Approved Lists 1980)

Assigned by: Eichler B, Pfennig N. A new.purple sulfur bacterium from stratified freshwater lakes, Amoebobacter purpureus sp. nov. Arch. Microbiol. 1988; 149:395-400.

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Record number: 773170