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Lawhon SD, Burbick CR, Krueger T, Ruiz-Reyes E, Munson E. An update on novel taxa and revised taxonomic status of bacteria isolated from domestic companion and agricultural animals described in 2023. J Clin Microbiol 2024; 62:e0104124. [PMID: 39495011 PMCID: PMC11633096 DOI: 10.1128/jcm.01041-24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2024] Open
Abstract
With the proliferation of abundant bacterial genomic data comes the recognition of new organisms as well as a better understanding of the relatedness of known bacteria. Recognizing the associated taxonomic changes enhances communication and understanding about the significance of novel organisms and deeper understanding of known pathogens. This review addresses the addition of multiple gastrointestinal bacteria that form the normal microbiota in a variety of animals including honeybees as well as novel bacteria from domestic animals including an alpha-hemolytic Streptococcus species from guinea pigs, two Moraxella spp. from cows and goats, a new Capnocytophaga species from cats, a thermophilic Campylobacter species from pigs, and the new Exercitatus genus in Family Pasteurellaceae. Several revisions to the nomenclature also appeared in 2023 including the change of Clostridium spiroforme, which causes anorexia and diarrhea in domestic rabbits, to Thomasclavelia spiroformis comb. nov. and Mannheimia ovis to Mannheimia pernigra.
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Affiliation(s)
- Sara D. Lawhon
- Department of Veterinary Pathobiology, Texas A&M University, College Station, Texas, USA
| | - Claire R. Burbick
- Department of Veterinary Microbiology and Pathology, Washington State University, Pullman, Washington, USA
| | - Trinity Krueger
- Department of Medical Laboratory Science, Marquette University, Milwaukee, Wisconsin, USA
| | - Elena Ruiz-Reyes
- Department of Medical Laboratory Science, Marquette University, Milwaukee, Wisconsin, USA
| | - Erik Munson
- Department of Medical Laboratory Science, Marquette University, Milwaukee, Wisconsin, USA
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Christensen H, Kuhnert P, Foster G, Bisgaard M. Mannheimia indoligenes sp. nov., proposed for clade V organisms of Mannheimia. Int J Syst Evol Microbiol 2024; 74. [PMID: 38739681 DOI: 10.1099/ijsem.0.006370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2024] Open
Abstract
A set of 25 strains belonging to clade V of Mannheimia mainly isolated from cattle was investigated and is proposed to represent Mannheimia indoligenes sp. nov. The species can be separated from the other validly published species of the genus by pheno- and genotype. Only indole separates M. indoligenes and Mannheimia varigena while two to seven characters separate M. indoligenes from other species of Mannheimia. Thirteen strains belonging to biogroups 6, 7, 8C, 9, 10, 12 and UG5 formed a monophyletic group based on 16S rRNA gene sequence comparisons with 98-100 % similarity. Eight of these strains were further included in the whole genome comparison. Digital DNA-DNA hybridization showed that the similarities between the suggested type strain M14.4T and the other strains of M. indoligenes were 62.9 % or higher. The average nucleotide identity was 95.5 % or higher between M14.4T and the other strains of the species. The rpoB gene sequence similarity was 95-100 % within M. indoligenes. MALDI-TOF allowed a clear separation from other Mannheimia species further supporting classification as a novel species and making it the diagnostic identification tool of choice for M. indoligenes. The type strain is M14.4T (=CCUG 77347T=DSM 116804T) isolated from a cattle tongue in Scotland.
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Affiliation(s)
- Henrik Christensen
- Department of Veterinary and Animal Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Peter Kuhnert
- Institute of Veterinary Bacteriology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Geoff Foster
- SRUC Veterinary Services, Scotland's Rural College, Inverness, UK
| | - Magne Bisgaard
- Bisgaard Consulting, Viby Sjælland, Viby Sjælland, Denmark
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Bisgaard M, Christensen H. Mannheimia cairinae sp. nov., a novel species of Mannheimia obtained from Muscovy ducks ( Cairina moschata) and reclassification of Mannheimia ovis as heterotypic synonym of Mannheimia pernigra. Int J Syst Evol Microbiol 2023; 73. [PMID: 37358903 DOI: 10.1099/ijsem.0.005947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/27/2023] Open
Abstract
During a screening study for Pasteurella multocida in two unrelated flocks of Muscovy ducks pharyngeal and cloacal swabs were collected. A total of 59 Pasteurellaceae-like isolates sharing the same colony morphology were subcultured and subsequently characterized. Colonies on bovine blood agar were nonhaemolytic, regular, circular, slightly raised, shiny, intransparent with an entire margin, greyish and had an unguent-like consistency. Isolate AT1T was characterized by 16S rRNA gene sequencing and showed the highest similarity of 96.1 % to the type strain of Mannheimia caviae and 96.0 % to the type strain of Mannheimia bovis, respectively. In addition, rpoB and recN gene sequences also showed the highest similarity to the genus Mannheimia. The phylogenetic comparison of concatenated conserved protein sequences also showed a unique position of AT1T compared to other species of Mannheimia. Full phenotypic characterization of the isolates showed that between two (Mannheimia ruminalis) and 10 (Mannheimia glucosida) phenotypic characteristics separate the taxon isolated from Muscovy ducks from the accepted species of Mannheimia. Whole genomic sequences of two strains analysed by the type strain genome server showed the highest similarity of 24.9 % to the genome of the type strain of Pasteurella multocida and 23.0 % to the genome of the type strain of Mannheimia haemolytica. The species Mannheimia cairinae sp. nov. is proposed based on the phenotypic and genotypic similarity to Mannheimia as well as differences to the other validly published species of the genus. The leukotoxin protein was not predicted in the genome of AT1T. The G+C content of the type strain of M. cairinae sp. nov., AT1T (=CCUG 76754T=DSM 115341T) is 37.99 mol%, calculated from the whole genome. The investigation further proposes that Mannheimia ovis is reclassified as a later heterotypic synonym of Mannheimia pernigra, since M. ovis and M. pernigra are closely genetically related, and M. pernigra was validly published before M. ovis.
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Affiliation(s)
| | - Henrik Christensen
- Department of Veterinary and Animal Sciences, University of Copenhagen, Copenhagen, Denmark
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Liu G, Wang K, Yang Z, Tang X, Chang YF, Dai K, Tang X, Hu B, Zhang Y, Cao S, Huang X, Yan Q, Wu R, Zhao Q, Du S, Wen X, Wen Y. Identification of a Novel Linear B-Cell Epitope of HbpA Protein from Glaesserella parasuis Using Monoclonal Antibody. Int J Mol Sci 2023; 24:8638. [PMID: 37239984 PMCID: PMC10218323 DOI: 10.3390/ijms24108638] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 04/27/2023] [Accepted: 04/27/2023] [Indexed: 05/28/2023] Open
Abstract
Glaesserella parasuis (G. parasuis.) is the etiological pathogen of Glässer's disease, which causes high economic losses to the pig industry. The heme-binding protein A precursor (HbpA) was a putative virulence-associated factor proposed to be potential subunit vaccine candidate in G. parasuis. In this study, three monoclonal antibodies (mAb) 5D11, 2H81, and 4F2 against recombinant HbpA (rHbpA) of G. parasuis SH0165 (serotype 5) were generated by fusing SP2/0-Ag14 murine myeloma cells and spleen cells from BALB/c mice immunized with the rHbpA. Indirect enzyme-linked immunosorbent assay (ELISA) and indirect immunofluorescence assay (IFA) demonstrated that the antibody designated 5D11 showed a strong binding affinity with the HbpA protein and was chosen for subsequent experiments. The subtypes of the 5D11 were IgG1/κ chains. Western blot analysis showed that mAb 5D11 could react with all 15 serotype reference strains of G. parasuis. None of the other bacteria tested reacted with 5D11. In addition, a linear B-cell epitope recognized by 5D11 was identified by serial truncations of HbpA protein and then a series of truncated peptides were synthesized to define the minimal region that was required for mAb 5D11 binding. The 5D11 epitope was located on amino acids 324-LPQYEFNLEKAKALLA-339 by testing the 5D11 monoclonal for reactivity with 14 truncations. The minimal epitope 325-PQYEFNLEKAKALLA-339 (designated EP-5D11) was pinpointed by testing the mAb 5D11 for reactivity with a series of synthetic peptides of this region. The epitope was highly conserved among G. parasuis strains, confirmed by alignment analysis. These results indicated that mAb 5D11 and EP-5D11 might potentially be used to develop serological diagnostic tools for G. parasuis. Three-dimensional structural analysis revealed that amino acids of EP-5D11 were in close proximity and may be exposed on the surface of the HbpA protein.
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Affiliation(s)
- Geyan Liu
- Research Center of Swine Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China; (G.L.); (K.W.); (Z.Y.); (X.T.); (K.D.); (X.T.); (B.H.); (Y.Z.); (S.C.); (X.H.); (Q.Y.); (R.W.); (Q.Z.); (S.D.); (X.W.)
| | - Kang Wang
- Research Center of Swine Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China; (G.L.); (K.W.); (Z.Y.); (X.T.); (K.D.); (X.T.); (B.H.); (Y.Z.); (S.C.); (X.H.); (Q.Y.); (R.W.); (Q.Z.); (S.D.); (X.W.)
| | - Zhen Yang
- Research Center of Swine Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China; (G.L.); (K.W.); (Z.Y.); (X.T.); (K.D.); (X.T.); (B.H.); (Y.Z.); (S.C.); (X.H.); (Q.Y.); (R.W.); (Q.Z.); (S.D.); (X.W.)
| | - Xiaoyu Tang
- Research Center of Swine Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China; (G.L.); (K.W.); (Z.Y.); (X.T.); (K.D.); (X.T.); (B.H.); (Y.Z.); (S.C.); (X.H.); (Q.Y.); (R.W.); (Q.Z.); (S.D.); (X.W.)
| | - Yung-Fu Chang
- Department of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, New York, NY 14850, USA;
| | - Ke Dai
- Research Center of Swine Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China; (G.L.); (K.W.); (Z.Y.); (X.T.); (K.D.); (X.T.); (B.H.); (Y.Z.); (S.C.); (X.H.); (Q.Y.); (R.W.); (Q.Z.); (S.D.); (X.W.)
| | - Xinwei Tang
- Research Center of Swine Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China; (G.L.); (K.W.); (Z.Y.); (X.T.); (K.D.); (X.T.); (B.H.); (Y.Z.); (S.C.); (X.H.); (Q.Y.); (R.W.); (Q.Z.); (S.D.); (X.W.)
| | - Bangdi Hu
- Research Center of Swine Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China; (G.L.); (K.W.); (Z.Y.); (X.T.); (K.D.); (X.T.); (B.H.); (Y.Z.); (S.C.); (X.H.); (Q.Y.); (R.W.); (Q.Z.); (S.D.); (X.W.)
| | - Yiwen Zhang
- Research Center of Swine Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China; (G.L.); (K.W.); (Z.Y.); (X.T.); (K.D.); (X.T.); (B.H.); (Y.Z.); (S.C.); (X.H.); (Q.Y.); (R.W.); (Q.Z.); (S.D.); (X.W.)
| | - Sanjie Cao
- Research Center of Swine Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China; (G.L.); (K.W.); (Z.Y.); (X.T.); (K.D.); (X.T.); (B.H.); (Y.Z.); (S.C.); (X.H.); (Q.Y.); (R.W.); (Q.Z.); (S.D.); (X.W.)
| | - Xiaobo Huang
- Research Center of Swine Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China; (G.L.); (K.W.); (Z.Y.); (X.T.); (K.D.); (X.T.); (B.H.); (Y.Z.); (S.C.); (X.H.); (Q.Y.); (R.W.); (Q.Z.); (S.D.); (X.W.)
| | - Qigui Yan
- Research Center of Swine Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China; (G.L.); (K.W.); (Z.Y.); (X.T.); (K.D.); (X.T.); (B.H.); (Y.Z.); (S.C.); (X.H.); (Q.Y.); (R.W.); (Q.Z.); (S.D.); (X.W.)
| | - Rui Wu
- Research Center of Swine Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China; (G.L.); (K.W.); (Z.Y.); (X.T.); (K.D.); (X.T.); (B.H.); (Y.Z.); (S.C.); (X.H.); (Q.Y.); (R.W.); (Q.Z.); (S.D.); (X.W.)
| | - Qin Zhao
- Research Center of Swine Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China; (G.L.); (K.W.); (Z.Y.); (X.T.); (K.D.); (X.T.); (B.H.); (Y.Z.); (S.C.); (X.H.); (Q.Y.); (R.W.); (Q.Z.); (S.D.); (X.W.)
| | - Senyan Du
- Research Center of Swine Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China; (G.L.); (K.W.); (Z.Y.); (X.T.); (K.D.); (X.T.); (B.H.); (Y.Z.); (S.C.); (X.H.); (Q.Y.); (R.W.); (Q.Z.); (S.D.); (X.W.)
| | - Xintian Wen
- Research Center of Swine Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China; (G.L.); (K.W.); (Z.Y.); (X.T.); (K.D.); (X.T.); (B.H.); (Y.Z.); (S.C.); (X.H.); (Q.Y.); (R.W.); (Q.Z.); (S.D.); (X.W.)
| | - Yiping Wen
- Research Center of Swine Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China; (G.L.); (K.W.); (Z.Y.); (X.T.); (K.D.); (X.T.); (B.H.); (Y.Z.); (S.C.); (X.H.); (Q.Y.); (R.W.); (Q.Z.); (S.D.); (X.W.)
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Munson E, Lawhon SD, Burbick CR, Zapp A, Villaflor M, Thelen E. An Update on Novel Taxa and Revised Taxonomic Status of Bacteria Isolated from Domestic Animals Described in 2018 to 2021. J Clin Microbiol 2023; 61:e0028122. [PMID: 36533907 PMCID: PMC9945509 DOI: 10.1128/jcm.00281-22] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Novel bacterial taxonomy and nomenclature revisions can have significant impacts on clinical practice, disease epidemiology, and veterinary microbiology laboratory operations. Expansion of research on the microbiota of humans, animals, and insects has significant potential impacts on the taxonomy of organisms of clinical interest. Implications of taxonomic changes may be especially important when considering zoonotic diseases. Here, we address novel taxonomy and nomenclature revisions of veterinary significance. Noteworthy discussion centers around descriptions of novel mastitis pathogens in Streptococcaceae, Staphylococcaceae, and Actinomycetaceae; bovine reproductive tract pathogens in Corynebacteriaceae; novel members of Mannheimia spp., Leptospira spp., and Mycobacterium spp.; the transfer of Ochrobactrum spp. to Brucella spp.; and revisions to the genus Mycoplasma.
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Affiliation(s)
- Erik Munson
- Department of Medical Laboratory Science, Marquette University, Milwaukee, Wisconsin, USA
| | - Sara D. Lawhon
- Department of Veterinary Pathobiology, Texas A&M University, College Station, Texas, USA
| | - Claire R. Burbick
- Department of Veterinary Microbiology and Pathology, Washington State University, Pullman, Washington, USA
| | - Amanda Zapp
- Department of Medical Laboratory Science, Marquette University, Milwaukee, Wisconsin, USA
| | - Maia Villaflor
- Department of Medical Laboratory Science, Marquette University, Milwaukee, Wisconsin, USA
| | - Elizabeth Thelen
- Department of Medical Laboratory Science, Marquette University, Milwaukee, Wisconsin, USA
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