SeqCode Registry
Register List https://seqco.de/r:gzovp6i4 [2026]

Allocrenothrix methanica sp. nov.

Submitted by Umezawa, Kazuhiro

Genus Allocrenothrix

Etymology
[Al.lo.cre.no.thrix.] Gr. masc. pron. allos, other, another, different; N.L. fem. n. Crenothrix, a bacterial genus; N.L. fem. n. Allocrenothrix, the other Crenothrix
Nomenclatural type
Species Allocrenothrix methanicaTs
Description
Cells are rods that grow as linear or branched multicellular filaments. Grows under micro-oxic conditions. Methanotrophic. Inhabits iron-rich snows and sediments along with stratified lakes. The genus corresponds to the "lacustrine Crenothrix" clade or the uncultured genus UBA4132 in GTDB R83 to R226. The nomenclatural type is Allocrenothrix methanica.
Classification
Bacteria » Pseudomonadota » Gammaproteobacteria » Methylococcales » Methylococcaceae » Allocrenothrix
References
Effective publication: Umezawa et al., 2026 [1]
Registry URL
https://seqco.de/i:55065

Species Allocrenothrix methanicaTs

Etymology
[Me.tha.ni.ca.] N.L. neut. n. methanum, methane; L. fem. adj. suff. -ica, pertaining to; N.L. fem. adj. methanica, pertaining to methane
Nomenclatural type
Genome sc|0005535 Ts
Reference Strain
Strain sc|0040749: AF98
Description
Microaerobic. Cells are rods 1.0-1.5 μm wide and 1.9-5.0 μm long and form multicellular filaments. Filaments are linear, rarely branched. Cells are connected by conjugation-like structures. No production of gonidia has been observed. The reference strain AF98 was isolated from iron-rich microbial mat material from wetlands regions of Oze National Park (Japan).
Classification
Bacteria » Pseudomonadota » Gammaproteobacteria » Methylococcales » Methylococcaceae » Allocrenothrix » Allocrenothrix methanicaTs
References
Effective publication: Umezawa et al., 2026 [1]
Registry URL
https://seqco.de/i:55064

References

  1. Umezawa et al. (2026). Isolation of Allocrenothrix methanica reveals distinct ecophysiologies of filamentous methanotrophs and adaptations to O2 limitation. The ISME Journal. DOI: 10.1093/ismejo/wrag178

Register List Certificate of Validation

On behalf of the Committee on the Systematics of Prokaryotes Described from Sequence Data (SeqCode Committee), we hereby certify that the Register List seqco.de/r:gzovp6i4 submitted by Umezawa, Kazuhiro and including 2 new names has been successfully validated.


Date of Priority: 2026-10-19 12:03 UTC
DOI: 10.57973/seqcode.r:gzovp6i4