Name: Lacticaseibacillus Zheng et al. 2020

Category: Genus

Proposed as: gen. nov.

Etymology: Lac.ti.ca.se.i.ba.cil’lus. L. neut. n. lac, milk; L. masc. n. caseus, cheese, referring to the casei-group lactobacilli; L. masc. n. bacillus, a rod; N.L. masc. n. Lacticaseibacillus, a milk-derived rodlet from the [Lactobacillus] casei group

Gender, pronunciation (Latin): masculine (stem: Lacticaseibacill-), lak-ti-ka-se-i-ba-KIL-lus

Type species: Lacticaseibacillus casei (Orla-Jensen 1916) Zheng et al. 2020

Conduct genome-based taxonomy of genus at TYGS

16S rRNA gene: Analyse FASTA

Valid publication: Zheng J, Wittouck S, Salvetti E, Franz CMAP, Harris HMB, Mattarelli P, O'Toole PW, Pot B, Vandamme P, Walter J, et al. A taxonomic note on the genus Lactobacillus: Description of 23 novel genera, emended description of the genus Lactobacillus Beijerinck 1901, and union of Lactobacillaceae and Leuconostocaceae. Int J Syst Evol Microbiol 2020; 70:2782-2858. 🇮🇹

IJSEM list: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 70, part 4 of the IJSEM. Int J Syst Evol Microbiol 2020; 70:4050-4060.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

• Notes:
  • 🚋 The type species of this genus has alternatively been placed in the genus [Caseobacterium]. Publication: Orla-Jensen S. Maelkeri-Bakteriologi. Schønberske Forlag, Copenhagen, 1916.
  • 🚋 The type species of this genus has alternatively been placed in the genus Lactobacillus Beijerinck 1901 (Approved Lists 1980). Publication: Hansen PA, Lessel EF. Lactobacillus casei (Orla Jensen) comb. nov. International Journal of Systematic Bacteriology 1971; 21:69-71.
  • 🙄 This taxon name is occasionally misprinted (or affected by an OCR error) in some sources as: "Lacticaeibacillus"; "Lacticasebacillus"; "Lacticaseibaciilus"; "Lacticaseiobacillus"; "Lacticasibacillus"; "Lactocaseibacillus"; "Laticaseibacillus"; "Lecticaseibacillus".
  • 🧔 This taxon was discussed in a meeting of a Taxonomic Subcommittee of the ICSP. Publication: Mattarelli P, Felis GE, Pot B, Holzapfel WH, Franz CMAP. International Committee on Systematics of Prokaryotes Subcommittee on the Taxonomy of Bifidobacterium, Lactobacillus and related organisms. Minutes of the closed meeting by videoconference, 3 September 2020. Int J Syst Evol Microbiol 2023; 73:5892. 🇮🇹
  • 💁 Taxonomists who have recently focused on this group are the corresponding authors of Grabner et al. (2024), Song et al. (2025), Bai et al. (2023). Editors in search of reviewers are advised to consider additional criteria such as whether a taxon is covered by one of the ICSP subcommittees.
  • 🎰 The BRCs most frequently used for deposits in this group are: JCM: 23; DSM: 19; NCIMB: 16; LMG: 16; CCTCC: 10; CCM: 9; CCUG: 8; ATCC: 6; KCTC: 5; NBRC: 5.
  • 🧍 The distinct name Lactiplantibacillus from the same publication has a similar spelling. Publication: Angell RC, Freund GE, Willett P. Automatic spelling correction using a trigram similarity measure. Information Processing and Management 1983; 19:255-261.

Subdivision:

Number of child taxa with a validly published and correct name: 34
Number of child taxa with a validly published name, including synonyms: 36
Total number of child taxa: 38

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Lacticaseibacillus absianus Bai et al. 2021	validly published under the ICNP	correct name
    Lacticaseibacillus baoqingensis (Long and Gu 2019) Zheng et al. 2020	validly published under the ICNP	correct name
    "Lacticaseibacillus boliensis" Wang et al. 2026	not validly published	preferred name
    Lacticaseibacillus brantae (Volokhov et al. 2012) Zheng et al. 2020	validly published under the ICNP	correct name
    Lacticaseibacillus camelliae (Tanasupawat et al. 2007) Zheng et al. 2020	validly published under the ICNP	correct name
    Lacticaseibacillus casei (Orla-Jensen 1916) Zheng et al. 2020	validly published under the ICNP	correct name
    Lacticaseibacillus chiayiensis (Huang et al. 2018) Zheng et al. 2020	validly published under the ICNP	correct name
    Lacticaseibacillus daqingensis (Long et al. 2020) Zheng et al. 2020	validly published under the ICNP	correct name
    Lacticaseibacillus hegangensis (Long et al. 2020) Zheng et al. 2020	validly published under the ICNP	correct name
    Lacticaseibacillus huelsenbergensis Grabner et al. 2023	validly published under the ICNP	correct name
    Lacticaseibacillus hulanensis (Zhao and Gu 2019) Zheng et al. 2020	validly published under the ICNP	correct name
    Lacticaseibacillus jixianensis (Long and Gu 2019) Zheng et al. 2020	validly published under the ICNP	correct name
    Lacticaseibacillus jixiensis Song et al. 2025	validly published under the ICNP	correct name
    Lacticaseibacillus kribbianus Paek et al. 2022	validly published under the ICNP	correct name
    Lacticaseibacillus manihotivorans (Morlon-Guyot et al. 1998) Zheng et al. 2020	validly published under the ICNP	correct name
    Lacticaseibacillus mingshuiensis Liu et al. 2021	validly published under the ICNP	correct name
    Lacticaseibacillus nasuensis (Cai et al. 2012) Zheng et al. 2020	validly published under the ICNP	correct name
    Lacticaseibacillus pabuli Choi et al. 2024	validly published under the ICNP	correct name
    Lacticaseibacillus pantheris (Liu and Dong 2002) Zheng et al. 2020	validly published under the ICNP	correct name
    Lacticaseibacillus paracasei (Collins et al. 1989) Zheng et al. 2020	validly published under the ICNP	correct name
    Lacticaseibacillus parahuelsenbergensis Grabner et al. 2024	validly published under the ICNP	correct name
    Lacticaseibacillus parakribbianus Bai et al. 2023	validly published under the ICNP	correct name
    "Lacticaseibacillus plantarum" Tian et al. 2021	not validly published	preferred name
    Lacticaseibacillus porcinae (Nguyen et al. 2013) Zheng et al. 2020	validly published under the ICNP	correct name
    Lacticaseibacillus rhamnosus (Hansen 1968) Zheng et al. 2020	validly published under the ICNP	synonym
    Lacticaseibacillus salsurae Song et al. 2025	validly published under the ICNP	correct name
    Lacticaseibacillus salsurivasis Zhang et al. 2024	validly published under the ICNP	correct name
    Lacticaseibacillus saniviri (Oki et al. 2012) Zheng et al. 2020	validly published under the ICNP	correct name
    Lacticaseibacillus sharpeae (Weiss et al. 1982) Zheng et al. 2020	validly published under the ICNP	correct name
    Lacticaseibacillus songhuajiangensis (Gu et al. 2013) Zheng et al. 2020	validly published under the ICNP	correct name
    Lacticaseibacillus styriensis Grabner et al. 2024	validly published under the ICNP	correct name
    Lacticaseibacillus suibinensis (Long et al. 2020) Zheng et al. 2020	validly published under the ICNP	correct name
    Lacticaseibacillus suihuaensis Zhu et al. 2025	validly published under the ICNP	correct name
    Lacticaseibacillus suilingensis Liu et al. 2021	validly published under the ICNP	correct name
    Lacticaseibacillus thailandensis (Tanasupawat et al. 2007) Zheng et al. 2020	validly published under the ICNP	correct name
    Lacticaseibacillus yichunensis (Long et al. 2020) Zheng et al. 2020	validly published under the ICNP	correct name
    Lacticaseibacillus zeae (Dicks et al. 1996 ex Kuznetsov 1959) Liu and Gu 2020	validly published under the ICNP, illegitimate name	in need of a replacement
    Lacticaseibacillus zhaodongensis (Li et al. 2020) Liu and Gu 2020	validly published under the ICNP	correct name

Parent taxon: Lactobacillaceae Winslow et al. 1917 (Approved Lists 1980)

Assigned by: Zheng J, Wittouck S, Salvetti E, Franz CMAP, Harris HMB, Mattarelli P, O'Toole PW, Pot B, Vandamme P, Walter J, et al. A taxonomic note on the genus Lactobacillus: Description of 23 novel genera, emended description of the genus Lactobacillus Beijerinck 1901, and union of Lactobacillaceae and Leuconostocaceae. Int J Syst Evol Microbiol 2020; 70:2782-2858. 🇮🇹

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Record number: 10543