Name: Mycoavidus cysteinexigens Ohshima et al. 2016

Category: Species

Proposed as: sp. nov.

Etymology: cys.te.in.ex’i.gens. N.L. fem. n. cysteina, cysteine; L. v. exigo, to demand; N.L. part. adj. cysteinexigens, cysteine-demanding

Gender: masculine

Type strain: B1-EB; JCM 30646; LMG 28693; NBRC 110909

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: LC005489 Analyse FASTA

Valid publication: Ohshima S, Sato Y, Fujimura R, Takashima Y, Hamada M, Nishizawa T, Narisawa K, Ohta H. Mycoavidus cysteinexigens gen. nov., sp. nov., an endohyphal bacterium isolated from a soil isolate of the fungus Mortierella elongata. Int J Syst Evol Microbiol 2016; 66:2052-2057.

IJSEM list: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 66, part 5 of the IJSEM. Int J Syst Evol Microbiol 2016; 66:2767-2768.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Notes:
  • 🥇 Nomenclatural type of the genus Mycoavidus Ohshima et al. 2016. Publication: Ohshima S, Sato Y, Fujimura R, Takashima Y, Hamada M, Nishizawa T, Narisawa K, Ohta H. Mycoavidus cysteinexigens gen. nov., sp. nov., an endohyphal bacterium isolated from a soil isolate of the fungus Mortierella elongata. Int J Syst Evol Microbiol 2016; 66:2052-2057.
  • 😢 The terminology used by the authors is in line with many other taxonomic studies and does not negatively affect their main results; some improvements may nevertheless be possible. Contrasting the term "chemotaxonomic" with "phenotypic" is not recommended. Using the term "phylogenetic data" (or equivalent) for sequence data is not advocated. See the LPSN phylogeny page for details. Publication: Göker M. What can genome analysis offer for bacteria? In: Bridge P, Smith D, Stackebrandt E (eds), Trends in the systematics of bacteria and fungi, CAB International, Wallingford, 2021, p. 255-281.
  • 😷 The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 1.
  • 🎓 Name mentioned 8 times in PubMed until 2024-03-27.

Parent taxon: Mycoavidus Ohshima et al. 2016

Assigned by: Ohshima S, Sato Y, Fujimura R, Takashima Y, Hamada M, Nishizawa T, Narisawa K, Ohta H. Mycoavidus cysteinexigens gen. nov., sp. nov., an endohyphal bacterium isolated from a soil isolate of the fungus Mortierella elongata. Int J Syst Evol Microbiol 2016; 66:2052-2057.

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Record number: 794143