Register list for Methylaequorum cenaphilum gen. nov. sp. nov. and their lineage

Submitted by Glass, Jennifer

Order Methylaequorales

Etymology: [Me.thy.lae.quo.ra'les] N.L. neut. n. Methylaequor, the type genus of the order; -ales, ending to denote an order; N.L. fem. pl. n. Methylaequorales, the Methylaequor order
Nomenclatural type: Genus Methylaequor
Description: Uncultivated bacteria in the order Methylaequorales (previously GTDB o__TMED127) have small, streamlined genomes (~1.5 Mb) and appear to be obligate lanthanide-dependent methylotrophs that use the serine cycle for carbon assimilation.
Classification: Bacteria » Pseudomonadota » Alphaproteobacteria » Methylaequorales
References: Effective publication: Glass et al., 2025 [1]
Registry URL: https://seqco.de/i:51452

Family Methylaequoraceae

Etymology: [Me.thy.lae.quo.ra'ce.ae] N.L. neut. n. Methylaequor, the type genus of the family; -aceae, ending to denote a family; N.L. fem. pl. n. Methylaequoraceae, the Methylaequor family
Nomenclatural type: Genus Methylaequor
Description: Uncultivated bacteria in the order Methylaequorales (previously GTDB o__TMED127) and family Methylaequoraceae (previously GTDB f__TMED127) have small, streamlined genomes (~1.5 Mb) and appear to be obligate lanthanide-dependent methylotrophs that use the serine cycle for carbon assimilation.
Classification: Bacteria » Pseudomonadota » Alphaproteobacteria » Methylaequorales » Methylaequoraceae
References: Effective publication: Glass et al., 2025 [1]
Registry URL: https://seqco.de/i:51451

Genus Methylaequor

Etymology: [Me.thyl.ae'quor] N.L. neut. n. methyl, the methyl group; L. neut. n. aequor, surface of the sea; N.L. neut. n. Methylaequor, a methyl group-oxidizing organism of the sea surface
Nomenclatural type: Species Methylaequor ceniphilum^Ts
Description: Uncultivated bacteria in the order Methylaequorales (previously GTDB o__TMED127) and family Methylaequoraceae (previously GTDB f__TMED127) have small, streamlined genomes (~1.5 Mb) and appear to be obligate lanthanide-dependent methylotrophs that use the serine cycle for carbon assimilation.
Classification: Bacteria » Pseudomonadota » Alphaproteobacteria » Methylaequorales » Methylaequoraceae » Methylaequor
References: Effective publication: Glass et al., 2025 [1]
Registry URL: https://seqco.de/i:51450

Species Methylaequor ceniphilum^Ts

Etymology: [ce.ni.phi'lum] L. fem. n. cena, the principal meal of the day in ancient Roman culture, originally taken in the afternoon; N.L. masc. adj. suff. -philus, loving; N.L. neut. adj. ceniphilum, late afternoon meal loving
Nomenclatural type: NCBI Assembly: GCA_902617375.1 ^Ts
Description: Uncultivated bacteria in the order Methylaequorales (previously GTDB o__TMED127) and family Methylaequoraceae (previously GTDB f__TMED127) have small, streamlined genomes (~1.5 Mb) and appear to be obligate lanthanide-dependent methylotrophs that use the serine cycle for carbon assimilation. Methylaequor ceniphilum showed a diel pattern of lanthanide-dependent methanol dehydrogenase (xoxF5) and glucose dehydrogenase (gdh) transcription, peaking in the late afternoon, in oligotrophic surface water of the Sargasso Sea.
Classification: Bacteria » Pseudomonadota » Alphaproteobacteria » Methylaequorales » Methylaequoraceae » Methylaequor » Methylaequor ceniphilum^Ts
References: Effective publication: Glass et al., 2025 [1]
Registry URL: https://seqco.de/i:51448

References

Glass et al. (2025). Diel cycle of lanthanide-dependent methylotrophy by TMED127/Methylaequorales bacteria in oligotrophic surface seawater. Applied and Environmental Microbiology. DOI:10.1128/aem.01181-25

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:_v7atfaf submitted by Glass, Jennifer and including 4 new names has been successfully validated.

Date of Priority: 2025-09-19 05:32 UTC

DOI: 10.57973/seqcode.r:_v7atfaf