Name: Melitea salexigens Urios et al. 2008

Category: Species

Proposed as: sp. nov.

Etymology: sal.ex’i.gens. L. masc. n. sal (gen. salis), salt, seawater; L. v. exigo, to demand; N.L. fem. part. adj. salexigens, seawater-demanding

Pronunciation, gender: sal-EX-i-gens, feminine

Type strain: 5IX/A01/131; CIP 109757; DSM 19753; MOLA 225

Conduct genome-based taxonomy at

16S rRNA gene: AY576729 Analyse FASTA

Valid publication: Urios L, Agogue H, Intertaglia L, Lesongeur F, Lebaron P. Melitea salexigens gen. nov., sp. nov., a gammaproteobacterium from the Mediterranean Sea. Int J Syst Evol Microbiol 2008; 58:2479-2483.

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 58, part 11 of the IJSEM. Int J Syst Evol Microbiol 2009; 59:205-206.

Nomenclatural status: validly published under the ICNP, illegitimate name

Taxonomic status: synonym

Correct name: Spongiibacter marinus Graeber et al. 2008

Risk group: 1

• Synonyms:

  • Name	Kind
    Neomelitea salexigens (Urios et al. 2008) Deshmukh and Oren 2023	homotypic synonym, validly published under the ICNP
    "Spongiibacter salexigens" (Urios et al. 2008) Flores-Félix et al. 2025	homotypic synonym, not validly published
    Spongiibacter marinus Graeber et al. 2008	heterotypic synonym, validly published under the ICNP

• Notes:
  • 🥇 Nomenclatural type of the genus Melitea Urios et al. 2008. Publication: Urios L, Agogue H, Intertaglia L, Lesongeur F, Lebaron P. Melitea salexigens gen. nov., sp. nov., a gammaproteobacterium from the Mediterranean Sea. Int J Syst Evol Microbiol 2008; 58:2479-2483.
  • ⏲ According to Jang et al. (2011), this species is a later heterotypic synonym of Spongiibacter marinus Graeber et al. 2008. Publication: Jang GI, Hwang CY, Choi HG, Kang SH, Cho BC. Description of Spongiibacter borealis sp. nov., isolated from Arctic seawater, and reclassification of Melitea salexigens Urios et al. 2008 as a later heterotypic synonym of Spongiibacter marinus Graeber et al. 2008 with emended descriptions of the genus Spongiibacter and Spongiibacter marinus. Int J Syst Evol Microbiol 2011; 61:2895-2900.
  • 😷 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.
  • 🧍 The genome of the type strain was sequenced as part of the GEBA (Genomic Encyclopedia of Bacteria and Archaea) project. Publication: Mukherjee S, Seshadri R, Varghese NJ, Eloe-Fadrosh EA, Meier-Kolthoff JP, Goker M, Coates RC, Hadjithomas M, Pavlopoulos GA, Paez-Espino D, et al. 1,003 reference genomes of bacterial and archaeal isolates expand coverage of the tree of life. Nat Biotechnol 2017; 35:676-683.

Parent taxon: Melitea Urios et al. 2008

Assigned by: Urios L, Agogue H, Intertaglia L, Lesongeur F, Lebaron P. Melitea salexigens gen. nov., sp. nov., a gammaproteobacterium from the Mediterranean Sea. Int J Syst Evol Microbiol 2008; 58:2479-2483.

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Record number: 786837