SeqCode Registry
Register List https://seqco.de/r:dgcae3s5 [2026]

Register list for 8 new names associated with endosymbionts of a magnetotactic ciliate

Submitted by Monteil, Caroline L.

Abstract

Proposed names are assigned to three of the four endosymbionts of a magnetotactic ciliate. Their genomes were sequenced following whole-genome amplification, and the same SRA dataset (SAMEA120102800) was used for all three type genomes.

Order Protisticellales

Etymology
[Pro.tis.ti.cel.la'les] N.L. fem. n. Protisticella, referring to the type genus Protisticella; -ales, ending to denote an order; N.L. fem. pl. n. Protisticellales, the Protisticella order
Nomenclatural type
Genus Protisticella
Description
The type genus of the class is Protisticella.
Classification
Bacteria » Pseudomonadota » Gammaproteobacteria » Protisticellales
References
Effective publication: Bolzoni et al., 2026 [1]
Registry URL
https://seqco.de/i:51456

Family Protisticellaceae

Etymology
[Pro.tis.ti.cel.la'ce.ae] N.L. fem. n. Protisticella, referring to the type genus Protisticella; -aceae, ending to denote a family; N.L. fem. pl. n. Protisticellaceae, the Protisticella family
Nomenclatural type
Genus Protisticella
Description
The type genus of the class is Protisticella.

Classification
Bacteria » Pseudomonadota » Gammaproteobacteria » Protisticellales » Protisticellaceae
References
Effective publication: Bolzoni et al., 2026 [1]
Registry URL
https://seqco.de/i:51455

Genus Endodesulfobacter

Etymology
[En.do.de.sul.fo.bac'ter.] Gr. pref. endo-, within; N.L. pref. desulfo-, desulfuricating; N.L. masc. n. bacter, rod or staff; N.L. masc. n. Endodesulfobacter, an endosymbiotic rod-shaped sulfate-reducing bacterium
Nomenclatural type
Species Endodesulfobacter magneticusTs
Description
The description is the same as for the nomenclatural type Endodesulfobacter magneticus.
Classification
Bacteria » Desulfobacterota » Desulfovibrionia » Desulfovibrionales » Desulfovibrionaceae » Endodesulfobacter
References
Effective publication: Bolzoni et al., 2026 [1]
Registry URL
https://seqco.de/i:51446

Genus Midichloriella

Etymology
[Mi.di.chlo.ri.el'la] N.L. fem. dim. n. Midichloriella, little Midichloria, referencing the sister genus of this lineage and referring to the midichlorians, organisms within the fictional Star Wars universe
Nomenclatural type
Species Midichloriella endociliophoraTs
Description
The description is the same as for the nomenclatural type Midichloriella endociliophora.
Classification
Bacteria » Pseudomonadota » Alphaproteobacteria » Rickettsiales » “Midichloriaceae” » Midichloriella
References
Effective publication: Bolzoni et al., 2026 [1]
Registry URL
https://seqco.de/i:51341

Genus Protisticella

Etymology
[Pro.tis.ti.cel'la] N.L. neut. pl. n. Protista, protists; L. fem. n. cella, a store-room and, in biology, a cell; N.L. fem. n. Protisticella, a cell from protists, referring to the endosymbiotic interaction between this bacterium and its protist host
Nomenclatural type
Species Protisticella dordognensisTs
Description
The description is the same as for the nomenclatural type Protisticella dordognensis.
Classification
Bacteria » Pseudomonadota » Gammaproteobacteria » Protisticellales » Protisticellaceae » Protisticella
References
Effective publication: Bolzoni et al., 2026 [1]
Registry URL
https://seqco.de/i:51454

Species Endodesulfobacter magneticusTs

Etymology
[mag.ne'ti.cus.] L. masc. adj. magneticus, magnetic
Nomenclatural type
NCBI Assembly: GCA_965112965.1 Ts
Description
Endosymbiotic rod-shaped bacterium of a freshwater magnetotactic ciliate forming magnetite magnetosomes.
Classification
Bacteria » Desulfobacterota » Desulfovibrionia » Desulfovibrionales » Desulfovibrionaceae » Endodesulfobacter » Endodesulfobacter magneticusTs
References
Effective publication: Bolzoni et al., 2026 [1]
Corrigendum: Bolzoni et al., 2026 [2] (from “Endodesulfobacter magneticum”)
Registry URL
https://seqco.de/i:51447

Species Midichloriella endociliophoraTs

Etymology
[en.do.ci.li.o.pho'ra] Gr. pref. endo-, inside; N.L. fem. pl. n. Ciliophora, the Ciliophora phylum of protists; N.L. fem. adj. endociliophora, inside Ciliophora, referring to the endosymbiotic interaction between this bacterium and its Ciliophora host
Nomenclatural type
NCBI Assembly: GCA_964213345.1 Ts
Description
Endosymbiotic rod-shaped bacteria of a freshwater magnetotactic ciliate.
Classification
Bacteria » Pseudomonadota » Alphaproteobacteria » Rickettsiales » “Midichloriaceae” » Midichloriella » Midichloriella endociliophoraTs
References
Effective publication: Bolzoni et al., 2026 [1]
Registry URL
https://seqco.de/i:51342

Species Protisticella dordognensisTs

Etymology
[dor.do.gnen'sis] N.L. fem. adj. dordognensis, of Dordogne, referring to the Dordogne region and the Dordogne River (France), where this organism was collected with its host
Nomenclatural type
NCBI Assembly: GCA_964213355.1 Ts
Description
Endosymbiotic rod-shaped bacteria of a freshwater magnetotactic ciliate from the Dordogne River (France).
Classification
Bacteria » Pseudomonadota » Gammaproteobacteria » Protisticellales » Protisticellaceae » Protisticella » Protisticella dordognensisTs
References
Effective publication: Bolzoni et al., 2026 [1]
Corrigendum: Bolzoni et al., 2026 [2] (from “Protisticella dordonia”)
Registry URL
https://seqco.de/i:51453

References

  1. Bolzoni et al. (2026). Magnetoreception in a freshwater ciliate arises from endosymbiosis. Nature Communications. DOI:10.1038/s41467-026-70462-8
  2. Bolzoni et al. (2026). Author Correction: Magnetoreception in a freshwater ciliate arises from endosymbiosis. Nature Communications. DOI:10.1038/s41467-026-74787-2

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:dgcae3s5 submitted by Monteil, Caroline L. and including 8 new names has been successfully validated.


Date of Priority: 2026-08-06 04:59 UTC
DOI: 10.57973/seqcode.r:dgcae3s5