Name: Ectothiorhodospira magna Bryantseva et al. 2011

Category: Species

Proposed as: sp. nov.

Etymology: ma’gna. L. fem. adj. magna, large

Pronunciation, gender: MA-n͡gna, feminine

Type strain: B7-7; DSM 22250; VKM B-2537

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: HM149323 Analyse FASTA

Effective publication: Briantseva IA, Turova TP, Kovaleva OL, Kostrikina NA, Gorlenko VM. [A new large alkaliphilic purple sulfur bacteria Ectothiorhodospira magna sp. nov]. Mikrobiologiia 2010; 79:782-792.

IJSEM list: Euzeby JP. Validation list no. 140. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2011; 61:1499-1501.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Notes:
  • 🧬 The phylogenomic assignment score of this taxon is 0.00732 (N = 13).
  • 😷 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 2 times in PubMed until 2025-06-04.
  • 🧍 In the section giving the species description (protologue), the name of genus is spelled incorrectly as Ectothiorkodospira. Publication: Euzeby JP. Validation list no. 140. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2011; 61:1499-1501.

Parent taxon: Ectothiorhodospira Pelsh 1936 (Approved Lists 1980)

Assigned by: Briantseva IA, Turova TP, Kovaleva OL, Kostrikina NA, Gorlenko VM. [A new large alkaliphilic purple sulfur bacteria Ectothiorhodospira magna sp. nov]. Mikrobiologiia 2010; 79:782-792.

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Record number: 789235