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Clerissi C, Huot C, Portet A, Gourbal B, Toulza E. Covariation between microeukaryotes and bacteria associated with Planorbidae snails. PeerJ 2023; 11:e16639. [PMID: 38144201 PMCID: PMC10740603 DOI: 10.7717/peerj.16639] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 11/19/2023] [Indexed: 12/26/2023] Open
Abstract
Background Microbial communities associated with macroorganisms might affect host physiology and homeostasis. Bacteria are well studied in this context, but the diversity of microeukaryotes, as well as covariations with bacterial communities, remains almost unknown. Methods To study microeukaryotic communities associated with Planorbidae snails, we developed a blocking primer to reduce amplification of host DNA during metabarcoding analyses. Analyses of alpha and beta diversities were computed to describe microeukaryotes and bacteria using metabarcoding of 18S and 16S rRNA genes, respectively. Results Only three phyla (Amoebozoa, Opisthokonta and Alveolata) were dominant for microeukaryotes. Bacteria were more diverse with five dominant phyla (Proteobacteria, Bacteroidetes, Tenericutes, Planctomycetes and Actinobacteria). The composition of microeukaryotes and bacteria were correlated for the Biomphalaria glabrata species, but not for Planorbarius metidjensis. Network analysis highlighted clusters of covarying taxa. Among them, several links might reflect top-down control of bacterial populations by microeukaryotes, but also possible competition between microeukaryotes having opposite distributions (Lobosa and Ichthyosporea). The role of these taxa remains unknown, but we believe that the blocking primer developed herein offers new possibilities to study the hidden diversity of microeukaryotes within snail microbiota, and to shed light on their underestimated interactions with bacteria and hosts.
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Affiliation(s)
- Camille Clerissi
- Current Affiliation: PSL Université Paris: EPHE-UPVD-CNRS, UAR 3278 CRIOBE, Université de Perpignan, Perpignan Cedex, France
| | - Camille Huot
- IHPE, Univ. Montpellier, CNRS, Ifremer, Univ. Perpignan via Domitia, Perpignan, France
| | - Anaïs Portet
- Current Affiliation: MIVEGEC, IRD, CNRS, University of Montpellier, Montpellier, France
| | - Benjamin Gourbal
- IHPE, Univ. Montpellier, CNRS, Ifremer, Univ. Perpignan via Domitia, Perpignan, France
| | - Eve Toulza
- IHPE, Univ. Montpellier, CNRS, Ifremer, Univ. Perpignan via Domitia, Perpignan, France
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Špičić S, Duvnjak S, Papić B, Reil I, Zrnčić S, Mihaljević Ž, Naletilić Š, Zupičić IG, Kompes G, Habrun B, Mareković I, Zdelar-Tuk M. Description of Mycobacterium pinniadriaticum sp. nov., isolated from a noble pen shell ( Pinna nobilis) population in Croatia. Front Microbiol 2023; 14:1289182. [PMID: 38192290 PMCID: PMC10773828 DOI: 10.3389/fmicb.2023.1289182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 11/17/2023] [Indexed: 01/10/2024] Open
Abstract
Introduction Shortly before the mass mortality event of the noble pen shell (Pinna nobilis) population in the south-eastern Adriatic coast, two rapidly growing Mycobacterium strains CVI_P3T (DSM 114013 T, ATCC TSD-295 T) and CVI_P4 were obtained from the organs of individual mollusks during the regular health status monitoring. Methods The strains were identified as members of the genus Mycobacterium using basic phenotypic characteristics, genus-specific PCR assays targeting the hsp65 and 16S rRNA genes and the commercial hybridization kit GenoType Mycobacterium CM (Hain Lifescience, Germany). MALDI-TOF mass spectrometry did not provide reliable identification using the Bruker Biotyper Database. Results and discussion Genome-wide phylogeny and average nucleotide identity (ANI) values confirmed that the studied strains are clearly differentiated from their closest phylogenetic relative Mycobacterium aromaticivorans and other validly published Mycobacterium species (ANI ≤ 85.0%). The type strain CVI_P3T was further characterized by a polyphasic approach using both phenotypic and genotypic methods. Based on the phenotypic, chemotaxonomic and phylogenetic results, we conclude that strains CVI_P3T and CVI_P4 represent a novel species, for which the name Mycobacterium pinniadriaticum sp. nov. is proposed.
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Affiliation(s)
- Silvio Špičić
- Laboratory for Bacterial Zoonosis and Molecular Diagnostics of Bacterial Diseases, Department of Bacteriology and Parasitology, Croatian Veterinary Institute, Zagreb, Croatia
| | - Sanja Duvnjak
- Laboratory for Bacterial Zoonosis and Molecular Diagnostics of Bacterial Diseases, Department of Bacteriology and Parasitology, Croatian Veterinary Institute, Zagreb, Croatia
| | - Bojan Papić
- Veterinary Faculty, Institute of Microbiology and Parasitology, University of Ljubljana, Ljubljana, Slovenia
| | - Irena Reil
- Laboratory for Bacterial Zoonosis and Molecular Diagnostics of Bacterial Diseases, Department of Bacteriology and Parasitology, Croatian Veterinary Institute, Zagreb, Croatia
| | - Snježana Zrnčić
- Laboratory for Fish Pathology, Department for Pathological Morphology, Croatian Veterinary Institute, Zagreb, Croatia
| | - Željko Mihaljević
- Laboratory for Pathology, Department for Pathological Morphology, Croatian Veterinary Institute, Zagreb, Croatia
| | - Šimun Naletilić
- Laboratory for Pathology, Department for Pathological Morphology, Croatian Veterinary Institute, Zagreb, Croatia
| | - Ivana Giovanna Zupičić
- Laboratory for Fish Pathology, Department for Pathological Morphology, Croatian Veterinary Institute, Zagreb, Croatia
| | - Gordan Kompes
- Laboratory for General Bacteriology and Mycology, Department of Bacteriology and Parasitology, Croatian Veterinary Institute, Zagreb, Croatia
| | - Boris Habrun
- Laboratory for General Bacteriology and Mycology, Department of Bacteriology and Parasitology, Croatian Veterinary Institute, Zagreb, Croatia
| | - Ivana Mareković
- Department of Clinical and Molecular Microbiology, University Hospital Centre Zagreb, Zagreb, Croatia
| | - Maja Zdelar-Tuk
- Laboratory for Bacterial Zoonosis and Molecular Diagnostics of Bacterial Diseases, Department of Bacteriology and Parasitology, Croatian Veterinary Institute, Zagreb, Croatia
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Ge H, Liang X, Lu Q, He A, Zhong P, Liu J, Yu Y, Song H. Case report: Intraabdominal infection of Mycobacterium syngnathidarum in an immunocompetent patient confirmed by whole-genome sequencing. Front Med (Lausanne) 2023; 10:1265594. [PMID: 37869158 PMCID: PMC10588666 DOI: 10.3389/fmed.2023.1265594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Accepted: 09/15/2023] [Indexed: 10/24/2023] Open
Abstract
Background The taxonomic group of non-tuberculous mycobacteria (NTM) encompasses more than 190 species and subspecies, some of which can cause pulmonary and extrapulmonary diseases across various age groups in humans. However, different subspecies exhibit differential drug sensitivities, and traditional detection techniques struggle to accurately classify NTM. Therefore, clinicians need more effective detection methods to identify NTM subtypes, thus providing personalized medication for patients. Case presentation We present the case of a 47-year-old female patient diagnosed with an intraabdominal infection caused by Mycobacterium syngnathidarum. Despite computed tomography of the chest suggesting potential tuberculosis, tuberculosis infection was ruled out due to negative TB-DNA results for ascites fluid and sputum and limited improvement of lung lesions after treatment. Additionally, acid-fast staining and Lowenstein-Jensen culture results revealed the presence of mycobacterium in ascites fluid. Subsequent whole-genome sequencing (WGS) confirmed the DNA sequences of Mycobacterium syngnathidarum in colonies isolated from the ascites fluid, which was further corroborated by polymerase chain reaction and Sanger sequencing. Ultimately, the patient achieved a complete recovery following the treatment regimen targeting Mycobacterium syngnathidarum, which involved clarithromycin, ethambutol hydrochloride, pyrazinamide, rifampicin, and isoniazid. Conclusion This is the first reported case of Mycobacterium syngnathidarum infection in humans. Mycobacterium syngnathidarum was detected by WGS in this case, suggesting that WGS may serve as a high-resolution assay for the diagnosis of different subtypes of mycobacterium infection.
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Affiliation(s)
- Hu Ge
- Changsha KingMed Center for Clinical Laboratory, Changsha, Hunan, China
| | - Xiongwei Liang
- Changsha KingMed Center for Clinical Laboratory, Changsha, Hunan, China
| | - Qiuran Lu
- Changsha KingMed Center for Clinical Laboratory, Changsha, Hunan, China
| | - Aixiang He
- Rucheng County People's Hospital, Rucheng, Hunan, China
| | - Peiwen Zhong
- Guangzhou KingCreate Biotechnology Company Limited, Guangzhou, Guangdong, China
| | - Jun Liu
- Guangzhou KingCreate Biotechnology Company Limited, Guangzhou, Guangdong, China
| | - Yan Yu
- Changsha KingMed Center for Clinical Laboratory, Changsha, Hunan, China
| | - Honglian Song
- Rucheng County People's Hospital, Rucheng, Hunan, China
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Burbick CR, Munson E, Lawhon SD, Zapp A, Villaflor M, Thelen E. An Update on Novel Taxa and Revised Taxonomic Status of Bacteria (Including Members of the Phylum Planctomycetota) Isolated from Aquatic Host Species Described in 2018 to 2021. J Clin Microbiol 2023; 61:e0142622. [PMID: 36719221 PMCID: PMC9945501 DOI: 10.1128/jcm.01426-22] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Increased interest in farmed aquatic species, aquatic conservation measures, and microbial metabolic end-product utilization have translated into a need for awareness and recognition of novel microbial species and revisions to bacterial taxonomy. Because this need has largely been unmet, through a 4-year literature review, we present lists of novel and revised bacterial species (including members of the phylum Planctomycetota) derived from aquatic hosts that can serve as a baseline for future biennial summaries of taxonomic revisions in this field. Most new and revised taxa were noted within oxidase-positive and/or nonglucose fermentative Gram-negative bacilli, including members of the Tenacibaculum, Flavobacterium, and Vibrio genera. Valid and effectively published novel members of the Streptococcus, Erysipelothrix, and Photobacterium genera are additionally described from disease pathogenesis perspectives.
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Affiliation(s)
- Claire R. Burbick
- Department of Veterinary Microbiology and Pathology, Washington State University, Pullman, Washington, USA
| | - 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
| | - 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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Clinical and Pathological Findings Associated with Mycobacteriosis in Captive Syngnathids. Animals (Basel) 2022; 12:ani12233259. [PMID: 36496780 PMCID: PMC9735937 DOI: 10.3390/ani12233259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/17/2022] [Accepted: 11/21/2022] [Indexed: 11/25/2022] Open
Abstract
Mycobacteriosis is an important disease that affects captive and wild aquatic fish. Syngnathids are susceptible to infection by non-tuberculous mycobacteria. The aim of this study was to describe clinical signs, and macroscopic and histological lesions in 25 syngnathids and the molecular characterization of the causative mycobacteria. Clinical presentation ranged from sudden death to non-specific signs, including anorexia, poor body condition, weight loss and marked dyspnea with increased respiratory effort and rate. Gross lesions were mostly ulcers on the tail and small white nodules in the liver, coelomic cavity and inside the eye. The most affected organs were gills, liver, intestine and coelomic mesentery. Microscopic lesions consisted of areas of multifocal to diffuse granulomatous inflammation and bacterial emboli with numerous intralesional acid-fast bacilli. Epithelioid cells, multinucleated giant cells, lymphocytes and fibrous connective tissue, which are commonly observed in granulomatous inflammation, were not observed here. In the real-time PCR, M. fortuitum, M. chelonae and M. marinum common primers, Mycobacterium spp. were detected in 4, 7 and 14 individuals, respectively. In addition, this is the first description of mycobacteriosis found in Syngnathus acus.
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Fogelson SB, Camus AC, Lorenz WW, Vasireddy R, Vasireddy S, Smith T, Brown-Elliott BA, Wallace RJ, Hasan NA, Reischl U, Sanchez S. Variation among human, veterinary and environmental Mycobacterium chelonae-abscessus complex isolates observed using core genome phylogenomic analysis, targeted gene comparison, and anti-microbial susceptibility patterns. PLoS One 2019; 14:e0214274. [PMID: 30908517 PMCID: PMC6433289 DOI: 10.1371/journal.pone.0214274] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 03/11/2019] [Indexed: 12/24/2022] Open
Abstract
Mycobacterium chelonae is a member of the Mycobacterium chelonae-abscessus complex and a cause of opportunistic disease in fish, reptiles, birds, and mammals including humans. Isolates in the complex are often difficult to identify and have differing antimicrobial susceptibilities. Thirty-one previously identified rapidly-growing, non-tuberculous Mycobacterium sp. isolates cultured from biofilms, fish, reptiles, mammals, including humans, and three ATCC reference strains were evaluated with nine M. chelonae-abscessus complex whole genome sequences from GenBank by phylogenomic analysis, targeted gene comparisons, and in-vitro antimicrobial susceptibility patterns to assess strain variation among isolates from different sources. Results revealed minimal genetic variation among the M. chelonae strains. However, the core genomic alignment and SNP pattern of the complete 16S rRNA sequence clearly separated the turtle type strain ATCC 35752T from the clinical isolates and human reference strain “M. chelonae chemovar niacinogenes” ATCC 19237, providing evidence of two distinct subspecies. Concatenation of the partial rpoB (752 bp) and complete hsp65 (1,626 bp) sequence produced the same species/subspecies delineations as the core phylogeny. Partial rpoB and hsp65 sequences identified all the clinical isolates to the appropriate species level when respective cut-offs of 98% and 98.4% identity to the M. chelonae type strain ATCC 35752T were employed. The human strain, ATCC19237, was the most representative strain for the evaluated human, veterinary, and environmental strains. Additionally, two isolates were identified as Mycobacterium saopaulense, its first identification in a non-fish or non-human host.
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Affiliation(s)
- Susan B. Fogelson
- University of Georgia, College of Veterinary Medicine, Department of Pathology, Athens, GA, United States of America
- * E-mail:
| | - Alvin C. Camus
- University of Georgia, College of Veterinary Medicine, Department of Pathology, Athens, GA, United States of America
| | - W. Walter Lorenz
- University of Georgia, Institute of Bioinformatics, Athens, GA, United States of America
| | - Ravikiran Vasireddy
- University of Texas Health Science Center at Tyler, Mycobacteria/Nocardia Research Laboratory, Department of Microbiology, Tyler, TX, United States of America
| | - Sruthi Vasireddy
- University of Texas Health Science Center at Tyler, Mycobacteria/Nocardia Research Laboratory, Department of Microbiology, Tyler, TX, United States of America
| | - Terry Smith
- University of Texas Health Science Center at Tyler, Mycobacteria/Nocardia Research Laboratory, Department of Microbiology, Tyler, TX, United States of America
| | - Barbara A. Brown-Elliott
- University of Texas Health Science Center at Tyler, Mycobacteria/Nocardia Research Laboratory, Department of Microbiology, Tyler, TX, United States of America
| | - Richard J. Wallace
- University of Texas Health Science Center at Tyler, Mycobacteria/Nocardia Research Laboratory, Department of Microbiology, Tyler, TX, United States of America
| | - Nabeeh A. Hasan
- Center for Genes, Environment and Health, National Jewish Health, Denver, CO, United States of America
| | - Udo Reischl
- Institute of Clinical Microbiology and Hygiene, University Hospital of Regensburg, Regensburg, Germany
| | - Susan Sanchez
- University of Georgia, College of Veterinary Medicine, Department of Infectious Diseases, Athens, GA, United States of America
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Turenne CY. Nontuberculous mycobacteria: Insights on taxonomy and evolution. INFECTION GENETICS AND EVOLUTION 2019; 72:159-168. [PMID: 30654178 DOI: 10.1016/j.meegid.2019.01.017] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 01/09/2019] [Accepted: 01/13/2019] [Indexed: 12/14/2022]
Abstract
Seventy years have passed since Ernest H. Runyon presented a phenotypic classification approach for nontuberculous mycobacteria (NTM), primarily as a starting point in trying to understand their clinical relevance. From numerical taxonomy (biochemical testing) to 16S rRNA gene sequencing to whole genome sequencing (WGS), our understanding of NTM has also evolved. Novel species are described at a rapid pace, while taxonomical relationships are re-defined in large part due to the accessibility of WGS. The evolutionary course of clonal complexes within species is better known for some NTM and less for others. In contrast with M. tuberculosis, much is left to learn about NTM as a whole.
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Affiliation(s)
- Christine Y Turenne
- Department of Medical Microbiology and Infectious Diseases, Max Rady College of Medicine, University of Manitoba, Winnipeg, MB, Canada; Shared Health - Diagnostic Services, Winnipeg, MB, Canada.
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