Genus Heyndrickxia

Name: Heyndrickxia Gupta et al. 2020

Category: Genus

Proposed as: gen. nov.

Etymology: Heyn.drick’xi.a. N.L. fem. n. Heyndrickxia, named for Prof. Marc Heyndrickx (University of Gent) for his many contributions to Microbiology and studies on Bacillus species

Gender, pronunciation: feminine (stem: Heyndrickxi-), heyn-DRIKK-ksi-a

Type species: Heyndrickxia oleronia (Kuhnigk et al. 1996) Gupta et al. 2020

Conduct genome-based taxonomy of genus at TYGS

16S rRNA gene: Analyse FASTA

Valid publication: Gupta RS, Patel S, Saini N, Chen S. Robust demarcation of 17 distinct Bacillus species clades, proposed as novel Bacillaceae genera, by phylogenomics and comparative genomic analyses: description of Robertmurraya kyonggiensis sp. nov. and proposal for an emended genus Bacillus limiting it only to the members of the Subtilis and Cereus clades of species. Int J Syst Evol Microbiol 2020; 70:5753-5798. 🇨🇦

IJSEM list: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 70, part 11 of the IJSEM. Int J Syst Evol Microbiol 2021; 71:4645.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Synonyms:

Name	Kind
Margalitia Gupta et al. 2020	heterotypic synonym, validly published under the ICNP

Notes:
- 🥇 Nomenclatural type of the family Heyndrickxiaceae Li et al. 2024. Publication: Li Y, Zhang D, Bo D, Peng D, Sun M, Zheng J. A taxonomic note on the order Caryophanales: description of 12 novel families and emended description of 21 families. Int J Syst Evol Microbiol 2024; 74:6539. 🇨🇳
- 🧕 Li et al. (2024) assigned this genus to the family Heyndrickxiaceae Li et al. 2024. Publication: Li Y, Zhang D, Bo D, Peng D, Sun M, Zheng J. A taxonomic note on the order Caryophanales: description of 12 novel families and emended description of 21 families. Int J Syst Evol Microbiol 2024; 74:6539. 🇨🇳
- 🚋 The type species of this genus has alternatively been placed in the genus Bacillus Cohn 1872 (Approved Lists 1980). Publication: Kuhnigk T, Borst EM, Breunig A, Konig H, Collins MD, Hutson RA, Kampfer P. Bacillus oleronius sp.nov., a member of the hindgut flora of the termite Reticulitermes santonensis (Feytaud). Can J Microbiol 1995; 41:699-706.
- 🎰 The BRCs most frequently used for deposits in this group are: DSM: 7; CIP: 4; LMG: 4; KCTC: 4; JCM: 3; ATCC: 3; NRRL: 2; NCCB: 2; ACCC: 1; NCTC: 1.

Subdivision:

Number of child taxa with a validly published and correct name: 9
Number of child taxa with a validly published name, including synonyms: 10
Total number of child taxa: 11

Child taxa:

Name	Nomenclatural status	Taxonomic status
Heyndrickxia acidicola (Albert et al. 2005) Narsing Rao et al. 2023	validly published under the ICNP	correct name
Heyndrickxia acidiproducens (Jung et al. 2009) Narsing Rao et al. 2023	validly published under the ICNP	correct name
Heyndrickxia camelliae (Niu et al. 2018) Narsing Rao et al. 2023	validly published under the ICNP	correct name
Heyndrickxia coagulans (Hammer 1915) Narsing Rao et al. 2023	validly published under the ICNP	synonym
"Heyndrickxia crassamentum" Rwezawula et al. 2025	not validly published	preferred name
Heyndrickxia faecalis (Kieu et al. 2023) Narsing Rao et al. 2023	validly published under the ICNP	correct name
Heyndrickxia ginsengihumi (Ten et al. 2007) Narsing Rao et al. 2023	validly published under the ICNP	correct name
Heyndrickxia oleronia (Kuhnigk et al. 1996) Gupta et al. 2020	validly published under the ICNP	correct name
Heyndrickxia shackletonii (Logan et al. 2004) Narsing Rao et al. 2023	validly published under the ICNP	correct name
Heyndrickxia sporothermodurans (Pettersson et al. 1996) Gupta et al. 2020	validly published under the ICNP	correct name
Heyndrickxia vini (Ma et al. 2017) Gupta et al. 2020	validly published under the ICNP	correct name

Parent taxon: Bacillaceae Fischer 1895 (Approved Lists 1980)

Assigned by: Gupta RS, Patel S, Saini N, Chen S. Robust demarcation of 17 distinct Bacillus species clades, proposed as novel Bacillaceae genera, by phylogenomics and comparative genomic analyses: description of Robertmurraya kyonggiensis sp. nov. and proposal for an emended genus Bacillus limiting it only to the members of the Subtilis and Cereus clades of species. Int J Syst Evol Microbiol 2020; 70:5753-5798. 🇨🇦

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Record number: 14512

This LPSN page was printed on 2026-01-23 14:51:29

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Genus Heyndrickxia