Weizmannia faecalis sp. nov., isolated from a human stool sample

Kieu, Hoang Thong; Pham, Thi Phuong Thao; Lo, Cheikh Ibrahima; Alibar, Stéphane; Bréchard, Ludivine; Armstrong, Nicholas; Decloquement, Philippe; Diallo, Aldiouma; Sokhna, Cheikh; Million, Matthieu; Lagier, Jean‐Christophe; Raoult, Didier; Alou, Maryam Tidjani

doi:10.1007/s00203-022-03229-6

Cited by 5 publications

(5 citation statements)

References 26 publications

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“…Heyndrickxia faecalis , a species with Standing in Nomenclature, is the homotypic synonym of Weizmannia faecalis (Narsing Rao et al., 2023 , Kieu et al., 2022 ). A single strain (Marseille‐P8953 T ) was isolated from the faeces of a healthy subject and consisted of Gram‐positive, spore‐forming, motile rod‐shaped cells.…”

Section: Assessmentmentioning

confidence: 99%

Update of the list of qualified presumption of safety (QPS) recommended microbiological agents intentionally added to food or feed as notified to EFSA 19: Suitability of taxonomic units notified to EFSA until September 2023

Koutsoumanis,

Allende,

Alvarez‐Ordóñez

et al. 2024

EFS2

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The qualified presumption of safety (QPS) process was developed to provide a safety assessment approach for microorganisms intended for use in food or feed chains. The QPS approach is based on an assessment of published data for each taxonomic unit (TU), with respect to its taxonomic identity, the body of relevant knowledge and safety concerns. Safety concerns identified for a TU are, where possible, confirmed at the species/strain or product level and reflected by ‘qualifications’. In the period covered by this Statement, no new information was found that would change the status of previously recommended QPS TUs. Of 71 microorganisms notified to EFSA between April and September 2023 (30 as feed additives, 22 as food enzymes or additives, 7 as novel foods and 12 from plant protection products [PPP]), 61 were not evaluated because: 26 were filamentous fungi, 1 was Enterococcus faecium, 5 were Escherichia coli, 1 was a bacteriophage (all excluded from the QPS evaluation) and 28 were TUs that already have a QPS status. The other 10 notifications belonged to 9 TUs which were evaluated for a possible QPS status: Ensifer adhaerens and Heyndrickxia faecalis did not get the QPS recommendation due to the limited body of knowledge about their occurrence in the food and/or feed chains and Burkholderia ubonensis also due to its ability to generate biologically active compounds with antimicrobial activity; Klebsiella pneumoniae, Serratia marcescens and Pseudomonas putida due to safety concerns. K. pneumoniae is excluded from future QPS evaluations. Chlamydomonas reinhardtii is recommended for QPS status with the qualification ‘for production purposes only’; Clostridium tyrobutyricum is recommended for QPS status with the qualification ‘absence of genetic determinants for toxigenic activity’; Candida oleophila has been added as a synonym of Yarrowia lipolytica. The Panel clarifies the extension of the QPS status for genetically modified strains.

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Section: Assessmentmentioning

confidence: 99%

Update of the list of qualified presumption of safety (QPS) recommended microbiological agents intentionally added to food or feed as notified to EFSA 19: Suitability of taxonomic units notified to EFSA until September 2023

Koutsoumanis,

Allende,

Alvarez‐Ordóñez

et al. 2024

EFS2

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“…The description of this taxon is the same as given by Kieu et al [11]. The type strain is Marseille-P8953 T (=CSUR P8953 T =CECT 9904 T ).…”

Section: Description Of Heyndrickxia Faecalis Comb Novmentioning

confidence: 99%

“…The genus Margalitia consists of two validly published species [2] isolated from Pu'er tea [3] and volcanic soil [4]. The genera Weizmannia and Heyndrickxia consist of four and three validly published species, respectively [2], that were isolated from vineyard soil [5] evaporated milk [6], ginseng field [7], hindgut flora of a termite [8], ultrahigh-temperature treated milk [9], alcohol fermentation pit mud [10] and human stool [11]. Some Bacillus species namely, Bacillus acidicola and Bacillus pervagus , showed high sequence similarity with the above-mentioned genera; however, they were regarded as ‘Bacillaceae incertae sedis’ because their genomes were previously not available and their phylogenetic and taxonomic placement was unclear [1].…”

Section: Full-textmentioning

confidence: 99%

Genome-based reclassification of Bacillus acidicola, Bacillus pervagus and the genera Heyndrickxia, Margalitia and Weizmannia

Rao

Banerjee

Liu

et al. 2023

International Journal of Systematic and Evolutionary Microbiology

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In the present study, the taxonomic positions of Bacillus acidicola , Bacillus pervagus and members of the genera Heyndrickxia , Margalitia and Weizmannia were evaluated. The 16S rRNA gene sequence similarity between Bacillus acidicola DSM 14745T, Bacillus pervagus DSM 23947T and members of the genera Heyndrickxia and Margalitia were above the cut-off level (>95 %) for genus delineation. Amino acid identity (AAI) values and the results of phylogenomic analysis suggested that B. acidicola and the members of the genera Heyndrickxia , Margalitia and Weizmannia belong to the same genus. Furthermore, the AAI and phylogenomic results also differentiate B. pervagus from B. acidicola and the members of the genera Heyndrickxia , Margalitia and Weizmannia . Based on the results, we propose to transfer Bacillus acidicola , Margalitia and Weizmannia to the genus Heyndrickxia . We also propose the reclassification of B. pervagus into a new genus Oikeobacillus gen. nov., with the type species Oikeobacillus pervagus comb. nov.

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“…B. coagulans has been recently allocated to the Weizmannia genus as Weizmannia coagulans (Gupta et al., 2020), which is a species also suitable for the QPS approach (EFSA, 2007; EFSA BIOHAZ Panel, 2022). In 2022, the species W. faecalis , showing an ANI value of 94.6% with the W. coagulans , has been described (Kieu et al., 2022). In the course of the current assessment, the active agent has been reallocated first to W. coagulans and then to W. f aecalis (synonym of H. faecalis ; Narsing Rao et al., 2023).…”

Section: Assessmentmentioning

confidence: 99%

“…In the previous assessment (EFSA FEEDAP Panel, 2020), the active agent DSM 32016 had been taxonomically identified as Bacillus coagulans , a species that was reclassified as Weizmannia coagulans (Gupta et al., 2020). A few strains of W. coagulans have recently been assigned to the new species Weizmannia faecalis (Kieu et al., 2022). During the current assessment, the taxonomical identification of the active agent was carried out by bioinformatic analysis using whole genome sequence (WGS) data and allocated the DSM 32016 strain to the W. faecalis species.…”

Section: Assessmentmentioning

confidence: 99%

Safety and efficacy of a feed additive consisting of Weizmannia faecalis DSM 32016 (TechnoSpore50®) for poultry for fattening, poultry reared for laying/breeding, ornamental birds and suckling and weaned Suidae piglets (Biochem Zusatzstoffe Handels‐ und Produktionsgesellschaft GmbH)

Bampidis,

Azimonti,

Bastos

et al. 2023

EFS2

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Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of Weizmannia faecalis (formerly identified as Bacillus coagulans) DSM 32016 (TechnoSpore50 ® ) as a zootechnical feed additive for poultry reared for breeding/laying/fattening, ornamental birds and suckling and weaned Suidae piglets. The additive is authorised for use in feed for poultry for fattening, ornamental birds and suckling and weaned Suidae piglets. This application sought the extension of use in feed for poultry reared for breeding/laying and the new authorisation in water for drinking for suckling and weaned Suidae piglets, poultry for fattening, reared for breeding/ laying and ornamental birds. Moreover, the applicant requested the authorisation of simultaneous use in feed for poultry reared for breeding and laying with coccidiostats. The identity and the lack of toxigenic activity of the active agent was confirmed, and it did not show resistance to relevant antibiotics; therefore, the strain was presumed safe for the target species, consumers and the environment. Since other components did not introduce concerns, TechnoSpore50 ® was also considered safe for the target species, consumers and the environment. The additive is not a skin/eye irritant but is a respiratory sensitiser. No conclusions could be drawn on the skin sensitisation potential of the additive. TechnoSpore50 ® was considered to be efficacious in feed for poultry reared for laying/breeding at 1 9 10 9 CFU/kg and in water for drinking for poultry reared for fattening, poultry reared for laying/breeding, ornamental birds and for suckling and weaned Suidae piglets at 5 9 10 8 CFU/L. TechnoSpore50 ® is compatible with halofuginone, diclazuril, monensin sodium, robenidine hydrochloride, salinomycin sodium and monensin sodium + nicarbazin, but not with narasin or narasin + nicarbazin. No conclusions could be drawn on the compatibility of TechnoSpore50 ® with decoquinate, lasalocid A sodium, semduramicin sodium, nicarbazin or amprolium hydrochloride.

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Weizmannia faecalis sp. nov., isolated from a human stool sample

Cited by 5 publications

References 26 publications

Update of the list of qualified presumption of safety (QPS) recommended microbiological agents intentionally added to food or feed as notified to EFSA 19: Suitability of taxonomic units notified to EFSA until September 2023

Update of the list of qualified presumption of safety (QPS) recommended microbiological agents intentionally added to food or feed as notified to EFSA 19: Suitability of taxonomic units notified to EFSA until September 2023

Genome-based reclassification of Bacillus acidicola, Bacillus pervagus and the genera Heyndrickxia, Margalitia and Weizmannia

Safety and efficacy of a feed additive consisting of Weizmannia faecalis DSM 32016 (TechnoSpore50®) for poultry for fattening, poultry reared for laying/breeding, ornamental birds and suckling and weaned Suidae piglets (Biochem Zusatzstoffe Handels‐ und Produktionsgesellschaft GmbH)

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