1
|
Yu Z, Zhu F, Tao X, Zhang L, Wu S, Dong C, Dong Y, Chen G, Zhou X, Fang Y, Xu K. Vogesella perlucida-induced bacteremia in an advanced-age patient: first case report. BMC Infect Dis 2020; 20:687. [PMID: 32948147 PMCID: PMC7501676 DOI: 10.1186/s12879-020-05420-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Accepted: 09/14/2020] [Indexed: 12/12/2022] Open
Abstract
Background Vogesella species are common aquatic, Gram-negative rod-shaped bacteria, originally described in 1997. Vogesella perlucida was first isolated from spring water in 2008. Furthermore, bacterial pathogenicity of Vogesella perlucida has never been reported. Here, we report the first case of rare Vogesella perlucida-induced bacteremia in an advanced-age patient with many basic diseases and history of dexamethasone abuse. Case presentation A 71-year-old female was admitted with inflamed upper and lower limbs, rubefaction, pain and fever (about 40 °C). She had been injured in a fall at a vegetable market and then touched river snails with her injury hands. A few days later, soft tissue infection of the patient developed and worsened. Non-pigmented colonies were isolated from blood cultures of the patient. Initially, Vogesella perlucida was wrongly identified as Sphingomonas paucimobilis by Vitek-2 system with GN card. Besides, we failed to obtain an acceptable identification by the MALDI-TOF analysis. Finally, the isolated strain was identified as Vogesella perlucida by 16S rRNA gene sequences. In addition, the patient recovered well after a continuous treatment of levofloxacin for 12 days. Conclusion Traditional microbiological testing system may be inadequate in the diagnosis of rare pathogenic bacteria. Applications of molecular diagnostics techniques have great advantages in clinical microbiology laboratory. By using 16S rRNA gene sequence analysis, we report the the first case of rare Vogesella perlucida-induced bacteremia.
Collapse
Affiliation(s)
- Zengxian Yu
- Clinical Laboratory Center, Wuyi First People's Hospital, Wuyi, Jinhua, 321200, Zhejiang, China
| | - Fang Zhu
- Wuyi First People's Hospital, Wuyi, Jinhua, 321200, Zhejiang, China
| | - Xinghe Tao
- Clinical Laboratory Center, Wuyi First People's Hospital, Wuyi, Jinhua, 321200, Zhejiang, China
| | - Lu Zhang
- Clinical Laboratory Center, Wuyi First People's Hospital, Wuyi, Jinhua, 321200, Zhejiang, China
| | - Suliu Wu
- Pathology department, Jinhua Central Hospital, Jinhua, 321000, Zhejiang, China
| | - Chunfu Dong
- Clinical Laboratory Center, Wuyi First People's Hospital, Wuyi, Jinhua, 321200, Zhejiang, China
| | - Yeqing Dong
- Clinical Laboratory Center, Wuyi First People's Hospital, Wuyi, Jinhua, 321200, Zhejiang, China
| | - Ge Chen
- Pathology department, Jinhua Central Hospital, Jinhua, 321000, Zhejiang, China
| | - Xinyang Zhou
- Pathology department, Jinhua Central Hospital, Jinhua, 321000, Zhejiang, China
| | - Yinfei Fang
- Wuyi First People's Hospital, Wuyi, Jinhua, 321200, Zhejiang, China
| | - Kechen Xu
- Clinical Laboratory Center, Wuyi First People's Hospital, Wuyi, Jinhua, 321200, Zhejiang, China.
| |
Collapse
|
2
|
An Experimental Brackish Aquaponic System Using Juvenile Gilthead Sea Bream (Sparus aurata) and Rock Samphire (Crithmum maritimum). SUSTAINABILITY 2019. [DOI: 10.3390/su11184820] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Brackish aquaponics using Mediterranean fish and plants provides an alternative opportunity for a combined production of high-quality food products with high commercial and nutritional value. This is the first study that investigates the effect of two different salinities (8 and 20 ppt) on growth and survival of Sparus aurata and Crithmum maritimum along with the cellular stress pathways using the activation of heat shock proteins (HSPs) and mitogen-activated protein kinase (MAPK) protein family members and the water bacterial abundance. In total, 156 fish were used (average initial weight of 2.55 g, length of 5.57 cm) and 36 plants (average initial height of 8.23 cm) in floating racks above the 135 L fish tanks. Survival rate for both organisms was 100%. C. crithmum grew better at 8 ppt (t-test, p < 0.05). The growth rate of S. aurata was similar for both treatments (p > 0.05). HSPs and MAPK were differentially expressed, showing tissue-specific responses. The average bacterial abundance at the end of the experiment was higher (p < 0.05) in the 20 ppt (18.6 ± 0.91 cells × 105/mL) compared to the 8 ppt (6.8 ± 1.9 cells × 105/mL). The results suggest that the combined culture of euryhaline fish and halophytes provides good quality products in brackish aquaponics systems.
Collapse
|
3
|
de Alexandre Sebastião F, LaFrentz BR, Shelley JP, Stevens B, Marancik D, Dunker F, Reavill D, Soto E. Flavobacterium inkyongense isolated from ornamental cichlids. JOURNAL OF FISH DISEASES 2019; 42:1309-1313. [PMID: 31197833 DOI: 10.1111/jfd.13043] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 05/05/2019] [Accepted: 05/07/2019] [Indexed: 06/09/2023]
Affiliation(s)
| | | | - John P Shelley
- Aquatic Animal Health Research Unit, USDA-ARS, Auburn, Alabama
| | - Brittany Stevens
- Aquarium of the Pacific, Long Beach, California
- California Science Center, Los Angeles, California
| | - David Marancik
- Department of Pathobiology, School of Veterinary Medicine, St. George's University, True Blue, Grenada
| | - Freeland Dunker
- Steinhart Aquarium, California Academy of Science, San Francisco, California
| | - Drury Reavill
- Zoo/Exotic Pathology Service, Carmichael, California
| | - Esteban Soto
- Department of Medicine & Epidemiology, School of Veterinary Medicine, University of California, Davis, California
| |
Collapse
|
4
|
Lanzoni O, Sabaneyeva E, Modeo L, Castelli M, Lebedeva N, Verni F, Schrallhammer M, Potekhin A, Petroni G. Diversity and environmental distribution of the cosmopolitan endosymbiont "Candidatus Megaira". Sci Rep 2019; 9:1179. [PMID: 30718604 PMCID: PMC6362216 DOI: 10.1038/s41598-018-37629-w] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 12/11/2018] [Indexed: 02/08/2023] Open
Abstract
Members of the order Rickettsiales are often found in association with ciliated protists. An interesting case is the bacterial endosymbiont “Candidatus Megaira”, which is phylogenetically closely related to the pathogen Rickettsia. “Candidatus Megaira” was first described as an intracellular bacterium in several ciliate species. Since then it has been found in association with diverse evolutionary distantly-related hosts, among them other unicellular eukaryotes, and also algae, and metazoa, such as cnidarians. We provide the characterization of several new strains of the type species “Candidatus Megaira polyxenophila”, and the multidisciplinary description of a novel species, “Candidatus Megaira venefica”, presenting peculiar features, which highlight the diversity and variability of these widespread bacterial endosymbionts. Screening of the 16S rRNA gene short amplicon database and phylogenetic analysis of 16S rRNA gene hypervariable regions revealed the presence of further hidden lineages, and provided hints on the possibility that these bacteria may be horizontally transmitted among aquatic protists and metazoa. The phylogenetic reconstruction supports the existence of at least five different separate species-level clades of “Candidatus Megaira”, and we designed a set of specific probes allowing easy recognition of the four major clades of the genus.
Collapse
Affiliation(s)
| | - Elena Sabaneyeva
- Faculty of Biology, Saint Petersburg State University, Saint Petersburg, Russia
| | - Letizia Modeo
- Department of Biology, University of Pisa, Pisa, Italy
| | - Michele Castelli
- Centro Romeo ed Enrica Invernizzi Ricerca Pediatrica, Dipartimento di Bioscienze, Università degli studi di Milano, Milan, Italy
| | - Natalia Lebedeva
- Core Facilities Centre "Culture Collections of Microorganisms", Saint Petersburg State University, Saint Petersburg, Russia
| | - Franco Verni
- Department of Biology, University of Pisa, Pisa, Italy
| | | | - Alexey Potekhin
- Faculty of Biology, Saint Petersburg State University, Saint Petersburg, Russia
| | | |
Collapse
|
5
|
Troussellier M, Escalas A, Bouvier T, Mouillot D. Sustaining Rare Marine Microorganisms: Macroorganisms As Repositories and Dispersal Agents of Microbial Diversity. Front Microbiol 2017; 8:947. [PMID: 28611749 PMCID: PMC5447324 DOI: 10.3389/fmicb.2017.00947] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Accepted: 05/11/2017] [Indexed: 12/14/2022] Open
Abstract
Recent analyses revealed that most of the biodiversity observed in marine microbial communities is represented by organisms with low abundance but, nonetheless essential for ecosystem dynamics and processes across both temporal and spatial scales. Surprisingly, few studies have considered the effect of macroorganism–microbe interactions on the ecology and distribution dynamics of rare microbial taxa. In this review, we synthesize several lines of evidence that these relationships cannot be neglected any longer. First, we provide empirical support that the microbiota of macroorganisms represents a significant part of marine bacterial biodiversity and that host-microbe interactions benefit to certain microbial populations which are part of the rare biosphere (i.e., opportunistic copiotrophic organisms). Second, we reveal the major role that macroorganisms may have on the dispersal and the geographic distribution of microbes. Third, we introduce an innovative and integrated view of the interactions between microbes and macroorganisms, namely sustaining the rares, which suggests that macroorganisms favor the maintenance of marine microbial diversity and are involved in the regulation of its richness and dynamics. Finally, we show how this hypothesis complements existing theories in microbial ecology and offers new perspectives about the importance of macroorganisms for the microbial biosphere, particularly the rare members.
Collapse
Affiliation(s)
- Marc Troussellier
- MARBEC, UMR IRD-CNRS-UM-IFREMER 9190, Université MontpellierMontpellier, France
| | - Arthur Escalas
- Institute for Environmental Genomics, Department of Microbiology and Plant Biology, University of Oklahoma, NormanOK, United States
| | - Thierry Bouvier
- MARBEC, UMR IRD-CNRS-UM-IFREMER 9190, Université MontpellierMontpellier, France
| | - David Mouillot
- MARBEC, UMR IRD-CNRS-UM-IFREMER 9190, Université MontpellierMontpellier, France.,Australian Research Council Centre of Excellence for Coral Reef Studies, James Cook University, TownsvilleQLD, Australia
| |
Collapse
|
6
|
Zaila KE, Doak TG, Ellerbrock H, Tung CH, Martins ML, Kolbin D, Yao MC, Cassidy-Hanley DM, Clark TG, Chang WJ. Diversity and Universality of Endosymbiotic Rickettsia in the Fish Parasite Ichthyophthirius multifiliis. Front Microbiol 2017; 8:189. [PMID: 28232825 PMCID: PMC5299013 DOI: 10.3389/fmicb.2017.00189] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 01/25/2017] [Indexed: 01/04/2023] Open
Abstract
Although the presence of endosymbiotic rickettsial bacteria, specifically Candidatus Megaira, has been reported in diverse habitats and a wide range of eukaryotic hosts, it remains unclear how broadly Ca. Megaira are distributed in a single host species. In this study we seek to address whether Ca. Megaira are present in most, if not all isolates, of the parasitic ciliate Ichthyophthirius multifiliis. Conserved regions of bacterial 16S rRNA genes were either PCR amplified, or assembled from deep sequencing data, from 18 isolates/populations of I. multifiliis sampled worldwide (Brazil, Taiwan, and USA). We found that rickettsial rRNA sequences belonging to three out of four Ca. Megaira subclades could be consistently detected in all I. multifiliis samples. I. multifiliis collected from local fish farms tend to be inhabited by the same subclade of Ca. Megaira, whereas those derived from pet fish are often inhabited by more than one subclade of Ca. Megaira. Distributions of Ca. Megaira in I. multifiliis thus better reflect the travel history, but not the phylogeny, of I. multifiliis. In summary, our results suggest that I. multifiliis may be dependent on this endosymbiotic relationship, and the association between Ca. Megaira and I. multifiliis is more diverse than previously thought.
Collapse
Affiliation(s)
| | - Thomas G. Doak
- Department of Biology, Indiana University, BloomingtonIN, USA
- National Center for Genome Analysis Support, Indiana University, BloomingtonIN, USA
| | | | - Che-Huang Tung
- Department of Aquatic Biosciences, National Chyai UniversityChyai City, Taiwan
| | - Mauricio L. Martins
- Departamento de Aquicultura, Centro de Ciências Agrárias, Universidade Federal de Santa CatarinaFlorianópolis, Brazil
| | - Daniel Kolbin
- Department of Microbiology and Immunology, College of Veterinary Medicine, Cornell University, IthacaNY, USA
| | - Meng-Chao Yao
- Institute of Molecular Biology, Academia SinicaTaipei, Taiwan
| | - Donna M. Cassidy-Hanley
- Department of Microbiology and Immunology, College of Veterinary Medicine, Cornell University, IthacaNY, USA
| | - Theodore G. Clark
- Department of Microbiology and Immunology, College of Veterinary Medicine, Cornell University, IthacaNY, USA
| | - Wei-Jen Chang
- Department of Biology, Hamilton College, ClintonNY, USA
- Institute of Molecular Biology, Academia SinicaTaipei, Taiwan
| |
Collapse
|
7
|
Carr SV, Martin PA, Keyes SL, Tong LJ, Talbot JJ, Muscatello G, Barrs VR. Nasofacial infection in a cat due to a novel bacterium in Neisseriaceae. JFMS Open Rep 2015; 1:2055116915597240. [PMID: 28491379 PMCID: PMC5362016 DOI: 10.1177/2055116915597240] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/16/2015] [Indexed: 11/21/2022] Open
Abstract
Case summary A 2-year-old female spayed domestic shorthair cat was presented for a progressive subcutaneous nasofacial swelling. Histology of biopsy tissue revealed pyogranulomatous inflammation and large numbers of gram-negative capsulated bacterial coccobacilli within macrophages. The isolate was fastidious and grew after 6 days under microaerophilic conditions in a candle jar. The molecular identity of the isolate, from comparative sequence analysis of the 16s rRNA gene, is an as yet to be classified bacterial species within a novel genus of Neisseria. Infection resolved after 7 months of antimicrobial therapy with doxycycline and trimethoprim sulfamethoxazole. There has been no further recurrence of clinical signs in a 3 year follow-up period. Relevance and novel information Cats are susceptible to nasofacial infections as a result of traumatic inoculation of environmental bacteria, fungi and protozoa. We report a novel pathogen in the Neisseriaceae family, identified by 16 sRNA comparative sequence analysis, as a cause of nasofacial infection in a cat, and its subsequent successful treatment with combination antimicrobial therapy.
Collapse
Affiliation(s)
- Susan V Carr
- Faculty of Veterinary Science, University of Sydney, NSW, Australia
| | | | - Samantha L Keyes
- Faculty of Veterinary Science, University of Sydney, NSW, Australia
| | - Lydia J Tong
- Faculty of Veterinary Science, University of Sydney, NSW, Australia
| | - Jessica J Talbot
- Faculty of Veterinary Science, University of Sydney, NSW, Australia
| | - Gary Muscatello
- Faculty of Veterinary Science, University of Sydney, NSW, Australia
| | - Vanessa R Barrs
- Faculty of Veterinary Science, University of Sydney, NSW, Australia
| |
Collapse
|
8
|
Vlahos N, Vasilopoulos M, Mente E, Hotos G, Katselis G, Vidalis K. Yolk-sac larval development of the substrate-brooding cichlid Archocentrus nigrofasciatus in relation to temperature. Integr Zool 2015. [PMID: 26201370 DOI: 10.1111/1749-4877.12152] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In order to conserve and culture the cichlid fish Archocentrus nigrofasciatus, more information about its reproductive biology and its larval behavior and morphogenesis is necessary. Currently, temperatures ranging from 21 to 27 °C are used in ornamental aquaculture hatcheries. Lower temperatures are preferred to reduce the costs of water heating, and 23 °C is usually the selected temperature. However, there is limited information on culturing protocols for ornamental species and most of the information generated on this topic remains scarce. Thus, the present study examines the morphological development of Archocentrus nigrofasciatus during the yolk-sac period up to the age of 100 h post-hatching in relation to 2 temperature regimes used in ornamental aquaculture: a temperature of 27 °C (thermal optimum) and a decreased temperature of 23 °C (thermal tolerance). The results of this study suggest that the 27 °C temperature generates intense morphological changes in yolk-sac development in a shorter period. This has advantages as it reduces the time of yolk-sac larval development, and, thus, minimizes the transition phase to exogenous feeding and maximizes the efficiency at which yolk is converted into body tissues. The present paper provides necessary information to produce freshwater ornamental fish with better practices so as to increase larval survival and capitalize on time for growth.
Collapse
Affiliation(s)
- Nikolaos Vlahos
- Department of Aquaculture and Fisheries, Technological Educational Institution of Western Greece, Mesollonghi, Greece.,Department of Ichthyology and Aquatic Environment, School of Agricultural Sciences, University of Thessaly, Volos, Greece
| | - Michael Vasilopoulos
- Department of Aquaculture and Fisheries, Technological Educational Institution of Western Greece, Mesollonghi, Greece
| | - Eleni Mente
- Department of Ichthyology and Aquatic Environment, School of Agricultural Sciences, University of Thessaly, Volos, Greece
| | - George Hotos
- Department of Aquaculture and Fisheries, Technological Educational Institution of Western Greece, Mesollonghi, Greece
| | - George Katselis
- Department of Aquaculture and Fisheries, Technological Educational Institution of Western Greece, Mesollonghi, Greece
| | - Kosmas Vidalis
- Department of Aquaculture and Fisheries, Technological Educational Institution of Western Greece, Mesollonghi, Greece
| |
Collapse
|
9
|
Inoue H, Fujimura R, Agata K, Ohta H. Molecular characterization of viable Legionella spp. in cooling tower water samples by combined use of ethidium monoazide and PCR. Microbes Environ 2015; 30:108-12. [PMID: 25736979 PMCID: PMC4356457 DOI: 10.1264/jsme2.me14115] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Viable Legionella spp. in environmental water samples were characterized phylogenetically by a clone library analysis combining the use of ethidium monoazide and quantitative PCR. To examine the diversity of Legionella spp., six cooling tower water samples and three bath water samples were collected and analyzed. A total of 617 clones were analyzed for their 16S rRNA gene sequences and classified into 99 operational taxonomic units (OTUs). The majority of OTUs were not clustered with currently described Legionella spp., suggesting the wide diversity of not-yet-cultured Legionella groups harbored in cooling tower water environments.
Collapse
Affiliation(s)
- Hiroaki Inoue
- Tsukuba Research Laboratories, Aquas Corporation, 4–4 Midorigahara, Tsukuba, Ibaraki 300–2646, Japan; Ibaraki University College of Agriculture, 3–21–1 Chuou, Ami-machi, Ibaraki 300–0393, Japan
| | | | | | | |
Collapse
|
10
|
Schrallhammer M, Ferrantini F, Vannini C, Galati S, Schweikert M, Görtz HD, Verni F, Petroni G. 'Candidatus Megaira polyxenophila' gen. nov., sp. nov.: considerations on evolutionary history, host range and shift of early divergent rickettsiae. PLoS One 2013; 8:e72581. [PMID: 23977321 PMCID: PMC3748036 DOI: 10.1371/journal.pone.0072581] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2011] [Accepted: 07/10/2013] [Indexed: 01/23/2023] Open
Abstract
"Neglected Rickettsiaceae" (i.e. those harboured by non-hematophagous eukaryotic hosts) display greater phylogenetic variability and more widespread dispersal than pathogenic ones; yet, the knowledge about their actual host range and host shift mechanism is scarce. The present work reports the characterization following the full-cycle rRNA approach (SSU rRNA sequence, specific in situ hybridization, and ultrastructure) of a novel rickettsial bacterium, herewith proposed as 'Candidatus Megaira polyxenophila' gen. nov., sp. nov. We found it in association with four different free-living ciliates (Diophrys oligothrix, Euplotes octocarinatus, Paramecium caudatum, and Spirostomum sp., all belonging to Alveolata, Ciliophora); furthermore it was recently observed as intracellular occurring in Carteria cerasiformis and Pleodorina japonica (Chlorophyceae, Chlorophyta). Phylogenetic analyses demonstrated the belonging of the candidate new genus to the family Rickettsiaceae (Alphaproteobacteria, Rickettsiales) as a sister group of the genus Rickettsia. In situ observations revealed the ability of the candidate new species to colonize either nuclear or cytoplasmic compartments, depending on the host organism. The presence of the same bacterial species within different, evolutionary distant, hosts indicates that 'Candidatus Megaira polyxenophila' recently underwent several distinct host shifts, thus suggesting the existence of horizontal transmission pathways. We consider these findings as indicative of an unexpected spread of rickettsial infections in aquatic communities, possibly by means of trophic interactions, and hence propose a new interpretation of the origin and phylogenetic diversification of rickettsial bacteria.
Collapse
Affiliation(s)
- Martina Schrallhammer
- Dipartimento di Biologia, Università di Pisa, Pisa, Italy
- Biologisches Institut, Universität Stuttgart, Stuttgart, Germany
- Institut für Hydrobiologie, Technische Universität Dresden, Dresden, Germany
- * E-mail: (GP); (MS)
| | | | | | - Stefano Galati
- Dipartimento di Biologia, Università di Pisa, Pisa, Italy
| | | | | | - Franco Verni
- Dipartimento di Biologia, Università di Pisa, Pisa, Italy
| | - Giulio Petroni
- Dipartimento di Biologia, Università di Pisa, Pisa, Italy
- * E-mail: (GP); (MS)
| |
Collapse
|