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de Carvalho AA, da Silva Ferreira RL, de Oliveira Nascimento LS, Morais SC, de Araujo RF, de Almeida Costa M, Videira MN, Giese EG. A Gallbladder Ceratomyxidae (Myxozoa: Bivalvulida) Parasite Described In Pimelodella cristata (Müller & Troschel, 1848) From the Eastern Amazon. Acta Parasitol 2024:10.1007/s11686-024-00930-y. [PMID: 39388054 DOI: 10.1007/s11686-024-00930-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2024] [Accepted: 09/17/2024] [Indexed: 10/12/2024]
Abstract
PURPOSE The Myxozoa class is characterized by parasites that have valves joined by a suture line and polar capsules containing eversible spiral filamento and this class is considered an obligate parasite. The genus Ceratomyxa has approximately 300 species described in fish, both marine and freshwater fish, mainly infecting the gallbladder, but also occurring in the urinary bladder. This study describes a new species of Ceratomyxa in the Amazon region for Pimelodella cristata. METHODS For these analyses, the fish were desensitized by means of a medullary section with the aid of a sharp metallic instrument. With the fish desensitized, the entire body surface was examined under a binocular stereoscopic microscope. The gallbladder fragments were collected and fixed in Davidson for histological analyses and in ethanol for molecular analyses. RESULTS This parasite was found in the host's gallbladder, with elongated spores in a decreasing shape in sutural view, measuring 1.64 ± 0.6 μm in length and 17.13 ± 2.6 μm in width. The polar capsules had a spherical shape of equal size and measured 1.36 ± 0.17 μm in length and 0.9 ± 0.05 μm in width, and each polar capsule contained 4 to 5 turns. CONCLUSION Morphological and phylogenetic analyzes denote that this is a new species of the genus Ceratomyxa.
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Affiliation(s)
- Abthyllane Amaral de Carvalho
- Postgraduate Programme in the Biology of Infectious and Parasitic Agents (BAIP), Federal University of Pará (UFPA), State of Pará, Belém, Brazil
| | - Roger Leomar da Silva Ferreira
- Postgraduate Programme in the Biology of Infectious and Parasitic Agents (BAIP), Federal University of Pará (UFPA), State of Pará, Belém, Brazil
| | | | - Saturo Cardoso Morais
- Morphophysiology and Animal Health Laboratory, State University of Amapá, State of Amapá, Macapá, Brazil
| | - Rafaela Franco de Araujo
- Animal Histology and Embryology Laboratory, Federal Rural University of the Amazon (UFRA), State of Pará, Belém, Brazil
| | - Maylo de Almeida Costa
- Morphophysiology and Animal Health Laboratory, State University of Amapá, State of Amapá, Macapá, Brazil
| | - Marcela Nunes Videira
- Morphophysiology and Animal Health Laboratory, State University of Amapá, State of Amapá, Macapá, Brazil.
| | - Elane Guerreiro Giese
- Animal Histology and Embryology Laboratory, Federal Rural University of the Amazon (UFRA), State of Pará, Belém, Brazil
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Surendran S, Vijayagopal P, Sanil NK. Morphological and Molecular Characterization of Two New Species of Ceratomyxa Thélohan, 1892 (Cnidaria: Myxosporea) from the Marine Ornamental Fish Zanclus cornutus (Linnaeus, 1758) off Lakshadweep Islands, Arabian Sea. Acta Parasitol 2024; 69:681-690. [PMID: 38349602 DOI: 10.1007/s11686-023-00782-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 12/12/2023] [Indexed: 05/01/2024]
Abstract
PURPOSE The present study provides the complete morphological and molecular description of two new species of myxosporeans, Ceratomyxa zancli n. sp. and Ceratomyxa cornuti n. sp. infecting the gallbladder of Zanclus cornutus from the Lakshadweep Islands, Arabian Sea. METHODS Zanclus cornutus were screened for the presence of myxosporeans, and the recovered myxospores were morphologically characterized using Nomarski Differential Interference Contrast (DIC) optics. The sequences of SSU rDNA were employed for molecular and phylogenetic studies. RESULTS Both the parasites exhibited a prevalence of 21% each. C. zancli n. sp. is characterized by broadly cresentic myxospores with convex anterior and slightly concave to straight posterior margins and rounded ends. Spore valves two, unequal, measured 9.6 ± 0.7 μm × 25.2 ± 1.3 μm. Polar capsules two, unequal, spherical, measured 4 ± 0.6 μm × 3.5 ± 0.6 μm. Polar filament exceptionally long and arranged irregularly. Myxospores of C. cornuti n. sp. are elongated with convex anterior and slightly concave to straight posterior margins. Spore valves two, unequal, measured 7.00 ± 0.4 μm × 26.56 ± 1.8 μm. Polar capsules spherical, unequal, measured 3.52 ± 0.2 × 3.36 ± 0.35. Molecular analysis of C. zancli n. sp. (ON818297) and C. cornuti n. sp. (ON818298) resulted in 1469 and 1491 bp long SSU rDNA sequences, respectively. Molecularly C. zancli n. sp. is close to C. diplodae and C. barnesi with 91.39% similarity, while C. cornuti n. sp. appears closer to C. robertsthomsoni with 97.46% similarity. In phylogenetic analyses, C. zancli n. sp. branched separately within the Ceratomyxa clade while C. cornuti n. sp. clustered with C. robertsthomsoni and C. thalassomae. CONCLUSION Based on the differences in morphological, morphometric, molecular, and phylogenetic characteristics, as well as differences in the host and geographic location, the above two species of myxosporeans are considered novel. The study forms the first report of a species of Ceratomyxa from Z. cornutus.
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Affiliation(s)
- Sneha Surendran
- Central Marine Fisheries Research Institute, Ernakulam North P.O., PB No. 1603, Kochi, Kerala, 682018, India.
| | - P Vijayagopal
- Central Marine Fisheries Research Institute, Ernakulam North P.O., PB No. 1603, Kochi, Kerala, 682018, India
| | - N K Sanil
- Central Marine Fisheries Research Institute, Ernakulam North P.O., PB No. 1603, Kochi, Kerala, 682018, India
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Figueredo RTA, Muller MI, Arana S, Long PF, Adriano EA. Phylogenetic and host-parasite relationship analyses of Henneguya caquetaia sp. nov (Myxosporea: Myxobolidae) infecting an Amazonian cichlid fish. Microb Pathog 2023; 179:106116. [PMID: 37068618 DOI: 10.1016/j.micpath.2023.106116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 04/10/2023] [Accepted: 04/13/2023] [Indexed: 04/19/2023]
Abstract
The present study describes a new species of Henneguya infecting the ornamental fish Caquetaia spectabilis from the Brazilian Amazon. Fish specimens were collected where the Tapajós and Amazon rivers merge, municipality of Santarém in the State of Pará, Brazil. Infections were intense, with several plasmodia spread on the opercula, fins and eye. Phylogenetic characterization and host-parasite relationship studies of the new Henneguya species used a combination of small subunit ribosomal DNA (ssrDNA) and morphological (photonic and transmission electron microscopy) analyses. Plasmodia were white round to ellipsoidal measuring up to 1.8 mm. The myxospores body measured 20.5 ± 3.9 (15-27) in length, 7.9 μm (6.2-10.8) in width, 6.7 μm (6.0-7.6) in thickness, 20.5 μm (14.4-32.3) in caudal appendages length, and 40.6 μm (34.2-54.6) in total length. The two polar capsules were elongated and equal in size, measuring 4.3 μm (3.3-5.4) in length and 2.1 μm (1.3-2.8) in width. Histological analysis revealed the parasite development in connective tissues of the fins, eyes and opercula. The skin of the fins and opercula presented detachment of the epidermis, however, no inflamatory infiltrate was observed. In the eye were observed inflammatory infiltratate in the epithelium and stroma of the cornea. Ultrastructure analysis showed the connective tissue capsule composed by an inner cellular layer with fibroblasts and outer layer where collagen fibers arranged transversely yet interspersed by layers of fibers arranged longitudinally. Numerous invaginations and extensive pinocytotic channels were observed in the plasmodial membrane. A layer of microfilament-like microfilament-like material was observed in the ectoplasm area and along to the internal surface of the plasmodial membrane. Generative cells and early stages of sporogenesis were seen more internally. The ssrDNA based phylogeny showed the South American species grouped in two lineages and the new species arises in a well-sustained subclade as sister branch of the clade composed by Henneguya spp. parasites of cichlids fish.
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Affiliation(s)
- Rayline T A Figueredo
- Department of Animal Biology, Institute of Biology, University of Campinas, 13083-970, Campinas, SP, Brazil.
| | - Maria I Muller
- Department of Ecology and Evolutionary Biology, Federal University of São Paulo (UNIFESP), Diadema, SP, 09972-270, Brazil
| | - Sarah Arana
- Department of Biochemistry and Tissue Biology, University of Campinas, 13083-970, Campinas, SP, Brazil
| | - Paul F Long
- Faculty of Life Sciences & Medicine, King's College London, 150 Stamford Street, London, SE1 9NH, United Kingdom; Faculty of Pharmaceutical Sciences, University of São Paulo, 05508-000, São Paulo, SP, Brazil
| | - Edson A Adriano
- Department of Animal Biology, Institute of Biology, University of Campinas, 13083-970, Campinas, SP, Brazil; Department of Ecology and Evolutionary Biology, Federal University of São Paulo (UNIFESP), Diadema, SP, 09972-270, Brazil
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Rangel LF, Santos MJ, Rocha S. Synopsis of the species of Henneguya Thélohan, 1892 (Cnidaria: Myxosporea: Myxobolidae) described since 2012. Syst Parasitol 2023; 100:291-305. [PMID: 37020081 DOI: 10.1007/s11230-023-10088-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 03/20/2023] [Indexed: 04/07/2023]
Abstract
The genus Henneguya Thélohan, 1892 (Cnidaria: Myxosporea: Myxobolidae) encompasses a large number of species that mostly infect freshwater fish belonging to 71 families of Actinopterygii. A synopsis of Henneguya species described between 2012 and 2022 is herein presented. It includes 57 species described during the last decade, and one species missing from the previous synopses, adding to a total of 254 species that have been formally described within this genus. Biological characters and myxospore morphometry are presented for each species record.
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Affiliation(s)
- Luis F Rangel
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Matosinhos, Portugal.
- CIIMAR, Biology Department, Faculty of Sciences, University of Porto, Porto, Portugal.
| | - Maria J Santos
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Matosinhos, Portugal
- CIIMAR, Biology Department, Faculty of Sciences, University of Porto, Porto, Portugal
| | - Sónia Rocha
- Instituto de Investigação e Inovação em Saúde (i3S), University of Porto, Porto, Portugal
- ICBAS - School of Medicine and Biomedical Sciences, University of Porto, Porto, Portugal
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Zatti SA, Marinho AMR, Adriano EA, Maia AAM. Integrative Taxonomy Reveals a Panmictic Population of Henneguya longisporoplasma n. sp. (Cnidaria: Myxozoa) in the Amazon Basin. Acta Parasitol 2022; 67:1644-1656. [DOI: 10.1007/s11686-022-00615-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 09/01/2022] [Indexed: 11/01/2022]
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Mathews PD, Mertins O, Milanin T, Aguiar JC, Gonzales-Flores APP, Tavares LER, Morandini AC. Ultrastructure, surface topography, morphology and histological observations of a new parasitic cnidarian of the marbled swamp eel from the world's largest tropical wetland area, Pantanal, Brazil. Tissue Cell 2022; 79:101909. [PMID: 36095932 DOI: 10.1016/j.tice.2022.101909] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Revised: 08/28/2022] [Accepted: 08/28/2022] [Indexed: 11/25/2022]
Abstract
Myxosporeans are a diverse group of microscopic cnidarians of wide distribution that evolved into a parasitic lifestyle. A new myxosporean species, Myxobolus sp., is herein described infecting the mandible of wild specimens of Synbranchus marmoratus, caught in the world's largest tropical wetland area, Pantanal, Brazil. Light, scanning, transmission electron microscopy and histological observations unveiled detailed taxonomic information of the new myxosporean cnidarian. Ultrastructural analysis revealed a detailed description of plasmodia structures which can be used for comparison with plasmodia from other species of myxobolids. Both histological and ultrastructural observations evidenced a connective tissue capsule surrounding the plasmodia of Myxobolus sp. as a histopathological host reaction to the infection of this parasitic cnidarian. Histology showed that tissue tropism of the new myxosporean occurs in a well-defined part of the mandible, with development of plasmodia occurring in the epidermis layer. Mature myxospores from the valvular view featured an ovoid shape and had a short prolongation of the spore valves in the posterior end. Myxospores measured 22.7 ± 1.2 µm (21.5-23.9 µm) in length, 12.5 ± 0.4 µm (12.1-12.9 µm) in width and 11.3 ± 0.5 (10.8-11.8 µm) in thickness. Polar capsules were pyriform equally-sized and measuring 4.6 ± 0.3 µm (3.9-4.3 µm) in length and 2.9 ± 0.1 µm in width (2.8-3.0 µm). Finally, this study substantiates the still hidden myxosporean diversity from South America.
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Affiliation(s)
- Patrick D Mathews
- Zoology Department, Institute of Biosciences, University of São Paulo, 05508-090 São Paulo, Brazil.
| | - Omar Mertins
- Laboratory of Nano Bio Materials, Department of Biophysics, Paulista Medical School, Federal University of Sao Paulo, 04023-062 São Paulo, Brazil
| | - Tiago Milanin
- Department of Basic Sciences, Faculty of Animal Science and Food Technology, University of São Paulo, 13635-900 Pirassununga, São Paulo, Brazil
| | - Julio C Aguiar
- Zoology Department, Institute of Biosciences, University of São Paulo, 05508-090 São Paulo, Brazil
| | - Anai P P Gonzales-Flores
- Research Institute of Peruvian Amazon (IIAP-AQUAREC), Puerto Maldonado, Madre de Dios 17000, Peru
| | - Luiz E R Tavares
- Department of Pathology, Institute of Bioscience, Federal University of Mato Grosso do Sul, 79070-900, Campo Grande, Brazil
| | - André C Morandini
- Zoology Department, Institute of Biosciences, University of São Paulo, 05508-090 São Paulo, Brazil; Centro de Biologia Marinha (CEBIMar), University of São Paulo, 11612-109, SãoSebastião, Brazil
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Woodyard ET, Rosser TG, Stilwell JM, Camus AC, Khoo LH, Waldbieser G, Lorenz WW, Griffin MJ. New data on Henneguya postexilis Minchew, 1977, a parasite of channel catfish Ictalurus punctatus, with notes on resolution of molecular markers for myxozoan phylogeny. Syst Parasitol 2022; 99:41-62. [PMID: 35028798 DOI: 10.1007/s11230-021-10015-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Accepted: 11/15/2021] [Indexed: 11/27/2022]
Abstract
Previous morphological and histological data are supplemented with molecular and ultrastructural data for a Henneguya sp. isolated from farm-raised channel catfish Ictalurus punctatus in Mississippi, USA. Myxospores were cryptic, encapsulated within a thin layer of epithelium in the gill lamellae with spore measurements consistent with the original description of Henneguya postexilis Minchew, 1977. Myxospores were 42.7-49.1 µm in total length with spore bodies 12.1-17.2 × 3.6-4.8 × 2.9-3 µm. Polar capsules were of unequal length, with the longer capsule being 4.4-6.7 × 1.1-1.6 µm and the shorter capsule being 4.4-6.4 × 1.1-1.6 µm. Polar tubules had 6-8 turns. Caudal processes were 25.7-38.1 µm in length. Spores were encapsulated in a thin layer of epithelium in the gill lamellae. Molecular data from the most commonly used markers for myxozoan identification and phylogeny, partial 18S small subunit ribosomal gene (SSU), partial 28S large subunit ribosomal gene (LSU), and elongation factor 2 (EF2) were generated for H. postexilis. Additionally, novel data for LSU and EF2 were generated for archived myxozoan specimens from farm-raised catfish (H. mississippiensis, H. ictaluri, H. exilis, H. adiposa, H. sutherlandi, H. bulbosus, Unicauda fimbrethilae), as well as archived specimens from wild fish (H. laseeae [from Pylodictis olivaris], Hennegoides flockae [from Aphredoderus sayanus], Myxobolus cloutmani [from Cycleptus elongatus]. These include the first EF2 sequence data for the genera Hennegoides and Unicauda. Phylogenetic analyses using these data placed H. postexilis in well supported clades with other ictalurid-infecting Henneguya species. Phylogenetic signal assessments on these analyses suggest that while SSU provided the greatest phylogenetic signal, LSU yielded comparable signal, supporting previous work implying this region may be underutilised in reconstructing myxobolid phylogenies.
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Affiliation(s)
- Ethan T Woodyard
- Department of Pathobiology and Population Medicine, College of Veterinary Medicine, Mississippi State University, Mississippi State, MS, 39759, USA.
| | - Thomas G Rosser
- Department of Comparative Biomedical Sciences, College of Veterinary Medicine, Mississippi State University, Mississippi State, MS, 39759, USA
| | - Justin M Stilwell
- Department of Pathology, College of Veterinary Medicine, University of Georgia, Athens, GA, 30602, USA
| | - Alvin C Camus
- Department of Pathology, College of Veterinary Medicine, University of Georgia, Athens, GA, 30602, USA
| | - Lester H Khoo
- Department of Pathobiology and Population Medicine, College of Veterinary Medicine, Mississippi State University, Mississippi State, MS, 39759, USA
| | - Geoffrey Waldbieser
- USDA-ARS Warmwater Aquaculture Research Unit, Thad Cochran National Warmwater Aquaculture Center, Stoneville, MS, 38776, USA
| | - W Walter Lorenz
- Georgia Genomics and Bioinformatics Core, University of Georgia, Athens, GA, 30602, USA
| | - Matt J Griffin
- Department of Pathobiology and Population Medicine, College of Veterinary Medicine, Mississippi State University, Mississippi State, MS, 39759, USA
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Azevedo C, Casal G, Soares EC, Oliveira E, Rocha S, Hine M, Silva TJ. Hemagglutination in gill capillaries of sheepshead, Archosargus probatocephalus (Perciformes: Sparidae), infected by a myxosporidean. REVISTA BRASILEIRA DE PARASITOLOGIA VETERINARIA = BRAZILIAN JOURNAL OF VETERINARY PARASITOLOGY : ORGAO OFICIAL DO COLEGIO BRASILEIRO DE PARASITOLOGIA VETERINARIA 2022; 31:e018121. [PMID: 35043873 PMCID: PMC9901868 DOI: 10.1590/s1984-29612022001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 12/06/2021] [Indexed: 11/22/2022]
Abstract
During a survey Myxozoa, four specimens of the sheepshead (18 ± 1.5 cm and 59 ± 2.5 g) (Archosargus probatocephalus) were collected in the Ipioquinha river (Maceió/AL). Transmission electron microscopy observations revealed erythrocyte agglutinations in gill capillaries located near spherical cysts containing myxospores of the genus Henneguya. This hemagglutination partially or totally obstructed the gill capillaries. Erythrocytes occurred in close adherence to each other, with a closed intercellular space. A few lysed erythrocytes were observed among agglutinated cells. The reduced lumen of the capillaries was partially filled with amorphous dense homogenous material adhering to the erythrocytes. In addition, heterogeneous masses of irregular lower electron density were observed in the reduced channel of the capillary. The agglutinated erythrocytes appeared dense and homogenous, lacking cytoplasmic organelles. The nuclei had the appearance of normal condensed chromatin masses, generally without visible nucleoli. This occurrence of hemagglutination only in the capillaries located in close proximity to the developing myxozoan cysts suggests that parasite development may be a factor triggering erythrocyte agglutination. This is supported by previous experimental studies that showed a probable correlation between parasitic infections and hemagglutination. Nonetheless, further studies are necessary in order to better understand the physicochemical processes involved in this phenomenon.
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Affiliation(s)
- Carlos Azevedo
- Laboratory of Cell Biology, Institute of Biomedical Sciences - ICBAS, Universidade do Porto - UP, Porto, Portugal.,Laboratory of Animal Pathology, Interdisciplinary Centre of Marine and Environmental Research - CIIMAR, University of Porto - UP, Matosinhos, Portugal
| | - Graça Casal
- Laboratory of Cell Biology, Institute of Biomedical Sciences - ICBAS, Universidade do Porto - UP, Porto, Portugal.,Toxicology Research Unit - TOXRUN, University Institute of Health Sciences, Cooperativa de Ensino Superior Politécnico e Universitário - CESPU, Gandra, Portugal
| | - Emerson Carlos Soares
- Laboratório de Aquicultura e Análise de Água - LAQUA, Universidade Federal de Alagoas - UFAL, Campus de Engenharias e Ciências Agrárias - CECA, Rio Largo, AL, Brasil
| | - Elsa Oliveira
- Laboratory of Cell Biology, Institute of Biomedical Sciences - ICBAS, Universidade do Porto - UP, Porto, Portugal
| | - Sónia Rocha
- Laboratory of Cell Biology, Institute of Biomedical Sciences - ICBAS, Universidade do Porto - UP, Porto, Portugal.,Instituto de Investigação e Inovação em Saúde, i3S Universidade do Porto, Porto, Portugal
| | | | - Themis Jesus Silva
- Laboratório de Aquicultura e Análise de Água - LAQUA, Universidade Federal de Alagoas - UFAL, Campus de Engenharias e Ciências Agrárias - CECA, Rio Largo, AL, Brasil
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Pereira CMB, de Matos Guerreiro SL, da Silva DT, de Azevedo RK, Matos ER, Hamoy IG. Morphology and molecular phylogeny of Hoferellus jutubensis n. sp. (Cnidaria: Myxozoa) found parasitising Ageneiosus inermis (Siluriformes: Auchenipteridae), in the Brazilian Amazon region. Parasitol Int 2021; 86:102445. [PMID: 34481082 DOI: 10.1016/j.parint.2021.102445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 08/04/2021] [Accepted: 08/25/2021] [Indexed: 11/26/2022]
Abstract
The present study describes Hoferellus jutubensis n. sp., a myxozoan parasite found in the urinary bladder of the driftwood catfish Ageneiosus inermis, captured on Jutuba Island in the state of Pará, northern Brazil. A total of 30 A. inermis specimens were examined, of which 26 (86.7%) had myxospores and polysporic plasmodia of varying shapes and sizes dispersed in the lumen of the urinary bladder, either floating freely or attached to the epithelium. In the apical view, the myxospores of Hoferellus jutubensis n. sp. are rounded, 6.1 ± 0.2 (5.7-6.3) μm long and 5.5 ± 0.3 (5.2-6.0) μm wide, with two sub-spherical polar capsules, equal in size and shape, 2.5 ± 0.2 (2.3-2.7) μm long and 1.7 ± 0.2 (1.4-2.2) μm wide. The phylogenetic analysis of a partial sequence of the SSU rDNA gene, indicated that the new species is the sister taxon of Hoferellus azevedoi, with these two species forming a Brazilian lineage of Hoferellus. The comparison of the morphological and molecular data with those of the existing members of the genus confirmed the species status of Hoferellus jutubensis n. sp., which adds one further Hoferellus taxon to the known myxosporean diversity of the Amazon basin.
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Affiliation(s)
- Camila Maria Barbosa Pereira
- Carlos Azevedo Research Laboratory, Institute of Animal Health and Production, Federal Rural University of Amazonia, Belém, Pará 66.077-901, Brazil
| | - Sávio Lucas de Matos Guerreiro
- Laboratory of Applied Genetics, Socio-Environmental and Water Resources Institute, Federal Rural University of Amazonia, Belém, Pará 66.077-901, Brazil
| | - Diehgo Tuloza da Silva
- Carlos Azevedo Research Laboratory, Institute of Animal Health and Production, Federal Rural University of Amazonia, Belém, Pará 66.077-901, Brazil
| | | | - Edilson R Matos
- Carlos Azevedo Research Laboratory, Institute of Animal Health and Production, Federal Rural University of Amazonia, Belém, Pará 66.077-901, Brazil.
| | - Igor G Hamoy
- Laboratory of Applied Genetics, Socio-Environmental and Water Resources Institute, Federal Rural University of Amazonia, Belém, Pará 66.077-901, Brazil
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Ferreira RLDS, Silva DTD, Araújo PGD, Hamoy I, Matos E, Videira MN. Henneguya sacacaensis n. sp. (Myxozoa: Myxosporea) parasitizing gills of the acará bicudo Satanoperca jurupari (Osteichthyes: Cichlidae) in eastern Amazon. REVISTA BRASILEIRA DE PARASITOLOGIA VETERINARIA = BRAZILIAN JOURNAL OF VETERINARY PARASITOLOGY : ORGAO OFICIAL DO COLEGIO BRASILEIRO DE PARASITOLOGIA VETERINARIA 2020; 29:e000620. [PMID: 32609239 DOI: 10.1590/s1984-29612020030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 04/16/2020] [Indexed: 11/21/2022]
Abstract
This study describes Henneguya sacacaensis n. sp. in specimens of the Osteichthyes Satanoperca jurupari (Heckel, 1840), collected in the Rio Curiaú Environmental Protection Area in the city of Macapá, state of Amapá Brazil. Using optical microscopy and molecular analysis, these cyst-shaped parasites were analyzed. The gills of 57.14% of the analyzed S. jurupari contained hundreds of spores. The cysts found on the gill lamellae were oval-shaped and whitish. The Henneguya spores had an average length of 46.5 (41.3-56.92) µm. The fusiform body of the Henneguya measured 16.5 (13.16-20.01) µm long and 5.1 (3.91-6.12) µm in width, the two polar capsules had a taper of 3.83 (3.4-4.32) µm and a width of 1.68 (1.4-1.99) µm, and the tail measured 30 (22.47-41.67) µm in length, containing a polar filament coiled seven to nine times. Morphogical and phylogenetic analysis allowed the preposition of a new species, Henneguya sacacaensis n. sp, that belongs to the family Myxobolidae and the genus Henneguya.
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Affiliation(s)
| | - Diehgo Tuloza da Silva
- Laboratório de Pesquisa Carlos Azevedo, Universidade Federal Rural da Amazônia - UFRA, Belém, PA, Brasil
| | - Priscila Gomes de Araújo
- Laboratório de Morfofisiologia e Sanidade Animal, Universidade do Estado do Amapá - UEAP, Macapá, AP, Brasil
| | - Igor Hamoy
- Laboratório de Genética Aplicada, Universidade Federal Rural da Amazônia - UFRA, Belém, PA, Brasil
| | - Edilson Matos
- Laboratório de Pesquisa Carlos Azevedo, Universidade Federal Rural da Amazônia - UFRA, Belém, PA, Brasil
| | - Marcela Nunes Videira
- Laboratório de Morfofisiologia e Sanidade Animal, Universidade do Estado do Amapá - UEAP, Macapá, AP, Brasil
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Mathews PD, Mertins O, Espinoza LL, Milanin T, Alama-Bermejo G, Audebert F, Morandini AC. Taxonomy and 18S rDNA-based phylogeny of Henneguya multiradiatus n. sp. (Cnidaria: Myxobolidae) a parasite of Brochis multiradiatus from Peruvian Amazon. Microb Pathog 2020; 147:104372. [PMID: 32652114 DOI: 10.1016/j.micpath.2020.104372] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 06/30/2020] [Accepted: 07/01/2020] [Indexed: 01/04/2023]
Abstract
A new myxozoan species belonging to the genus Henneguya was isolated from the serous membrane of the visceral cavity of the hognosed catfish Brochis multiradiatus from Peruvian Amazon. Whitish plasmodia, macroscopically visible, were found in four of the thirty examined fishes. Mature myxospores were ellipsoidal in shape in frontal view and had a total length of 44.5 ± 0.6 μm (43.9-45.1), spore body measured 18.7 ± 0.9 μm (16.8-19.6) in length, 7.1 ± 0.2 μm (6.6-7.4) in width and 5.5 ± 0.3 μm (4.9-5.6) in thickness. The two polar capsules were elongated and equal in size, measuring 9.1 ± 0.1 μm (8.8-9.4) in length and 1.7 ± 0.1 μm (1.6-1.8) in width, occupying half of the myxospore body. Polar tubules coiled in 10-11 turns perpendicular to the long axis of the polar capsule. The caudal appendage was not bifurcated and measured 25.8 ± 0.6 μm (24.7-26.5) in length. The sequencing of the 18S rDNA gene resulted in 1400 bp and this sequence did not match any of the myxozoans available in GenBank. Phylogenetic analysis placed the new species in a well-supported subclade of Henneguya spp. infecting callichthyid fishes, with Henneguya loretoensis being the closest species. This study is the first description of a myxozoan species, Henneguya multiradiatus n. sp. from a fish of the genus Brochis.
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Affiliation(s)
- Patrick D Mathews
- Department of Zoology, Institute of Biosciences, University of São Paulo, 05508-090, São Paulo, Brazil; Unité de Biologie des Organismes et Écosystèmes Aquatiques, Museum National de d'Histoire Naturelle, Sorbonne Université, CNRS, IRD, UCA, CP 26, 75005, Paris, France.
| | - Omar Mertins
- Department of Biophysics, Paulista Medical Scholl, Federal University of São Paulo, 04023-062, São Paulo, Brazil
| | - Luis L Espinoza
- Laboratory of Biology and Molecular Genetics, Faculty of Veterinary Medicine, National University of San Marcos, 2800, San Borja, Lima, Peru
| | - Tiago Milanin
- Department of Basic Sciences, Faculty of Animal Science and Food Technology, University of São Paulo, 13635-900, São Paulo, Brazil
| | - Gema Alama-Bermejo
- Institute of Parasitology, Biology Centre of the Czech Academy of Sciences, 37005, České Budějovice, Czech Republic
| | - Fabienne Audebert
- Unité de Biologie des Organismes et Écosystèmes Aquatiques, Museum National de d'Histoire Naturelle, Sorbonne Université, CNRS, IRD, UCA, CP 26, 75005, Paris, France
| | - André C Morandini
- Department of Zoology, Institute of Biosciences, University of São Paulo, 05508-090, São Paulo, Brazil; Marine Biology Center, University of São Paulo, 11612-109, São Sebastião, Brazil
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Henneguyosis in gills of Metynnis hypsauchen: an Amazon freshwater fish. J Parasit Dis 2019; 44:213-220. [PMID: 32174727 DOI: 10.1007/s12639-019-01183-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Accepted: 11/22/2019] [Indexed: 10/25/2022] Open
Abstract
This study describes aspects of infection caused by Myxozoa of the genus Henneguya sp. in gills of fish belonging to the species Metynnis hypsauchen. Two sampling were made in the Capim river, close to the Ribeira community, in the municipality of Ipixuna do Pará, State of Pará, Brazil, during the months of August 2018 and March 2019. The animals were captured and transported live to the Laboratório de Pesquisa Carlos Azevedo, at the Universidade Federal Rural da Amazônia (UFRA), in Belém, Pará, Brazil. The animals were examined, and after parasitism was confirmed, Differential Interference Contrast Microscopes were used, to evaluate the parasite spores. Ziehl-Neelsen stain techniques were used in histology. Necroscopic analyses of Metynnis hypsauchen specimens found parasites in 80% of the hosts (16/20), with whitish-colored cysts in the branchial filaments, containing mature spores of the genus Henneguya. The histopathological analysis indicated large areas with cystic lesions with associated ischemic necrosis. The descriptions from this study indicate that the parasite drastically compromises the host's respiratory system. Additionally, it is worth noting that parasite fauna studies of fishes in the Capim river are still a vast topic for research; this is the first record of infection by Henneguya sp. in Metynnis hypsauchen, captured in the Capim river in Ipixuna do Pará.
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Molecular and morphological analysis of Henneguya jundiai n. sp. (Cnidaria: Myxosporea), a new parasite of the gills of Rhamdia quelen in Brazil. Acta Trop 2019; 197:105053. [PMID: 31173737 DOI: 10.1016/j.actatropica.2019.105053] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 05/13/2019] [Accepted: 06/02/2019] [Indexed: 11/22/2022]
Abstract
Plasmodia containing spores of a new species of myxozoan, Henneguya jundiai n. sp., were found in the gill arches of Rhamdia quelen catfish. The present study describes H. jundiai n. sp. based on morphological and molecular analysis. The mature spores were elongated and measured 26.9 ± 1.9 (22.9-29.2) μm in total spore length, 9.5 ± 0.4 (8.8-10.0) μm in spore body length, 4.6 ± 0.4 (4.1-5.5) μm in spore body width, 17.3 ± 1.8 (14.1-19.8) μm in tail length, 4.9 ± 0.3 (4.6-5.5) μm in polar capsule length and 1.4 ± 0.2 (1.2-1.7) μm in polar capsule width. The polar filaments had 6-7 coils. Histological analysis revealed the formation of a large plasmodium connected to the gill arch through the epithelial tissue. Ultrastructural analysis revealed the presence of a binucleated sporoplasm, as well as the polar capsules and the coils of the polar filament. Phylogenetic analysis found that H. jundiai n. sp. is located within a subclade formed by species of Henneguya which parasitize siluriform fish from Brazil. Henneguya jundiai n. sp. appears as a sister species of H. quelen. The results of the analyzes clearly indicated the existence of a new species, H. jundiai.
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FERREIRA MAKSONM, PASSADOR RAFAELJ, TAVARES-DIAS MARCOS. Community ecology of parasites in four species of Corydoras (Callichthyidae), ornamental fish endemic to the eastern Amazon (Brazil). ACTA ACUST UNITED AC 2019; 91:e20170926. [DOI: 10.1590/0001-3765201920170926] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Accepted: 06/11/2018] [Indexed: 11/22/2022]
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Morphology and 18S rDNA sequencing of Henneguya peruviensis n. sp. (Cnidaria: Myxosporea), a parasite of the Amazonian ornamental fish Hyphessobrycon loretoensis from Peru: A myxosporean dispersal approach. Acta Trop 2018; 187:207-213. [PMID: 30107151 DOI: 10.1016/j.actatropica.2018.08.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Revised: 07/21/2018] [Accepted: 08/10/2018] [Indexed: 11/23/2022]
Abstract
Myxosporean are endoparasitic cnidarians of wide distribution and responsible for important economic losses in fisheries and aquaculture. A new myxosporean species, Henneguya peruviensis n. sp., is herein described as obtained from the gill filaments of Hyphessobrycon loretoensis caught in the Nanay River, Department of Loreto, Peru. The parasite was found in 37 of 45 (82.2%) examined H. loretoensis. The new species was characterized based on morphological features and 18S rDNA gene sequence data. The sequencing of the 18S rDNA gene from the spores of H. peruviensis n. sp. resulted in 1632 nucleotides and this sequence did not match any of the myxozoan available in the GenBank. Phylogenetic analysis showed that H. peruviensis n. sp. closed together with H. leporinicola. Nonetheless, the 18S rDNA sequences of H. peruviensis n. sp. and H. leporinicola have only 82% similarity. This is the first description and molecular study of a Myxozoa parasitizing fish of the genus Hyphessobrycon in the Amazon basin. Given the importance of the ornamental fish industry in translocation of aquatic organisms worldwide, the international movement of myxosporeans in infected fish is discussed in terms of disease outbreaks and the need for preventative action.
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A new species of Myxosporea, Henneguya quelen, from silver catfish Rhamdia quelen (Siluriforme: Pimelodidae) in the Amazonian region. Parasitol Res 2018; 117:3809-3820. [PMID: 30255237 DOI: 10.1007/s00436-018-6086-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Accepted: 09/11/2018] [Indexed: 10/28/2022]
Abstract
Henneguya quelen n. sp. (Myxosporea) is described from the kidney of the silver catfish, Rhamdia quelen (Quoy & Gaimard, 1824), from Marajó Island. In all, 40% of the 57 silver catfish collected from the Paracauari River in the municipality of Salvaterra presented cysts in the kidney. The cysts were whitish, spherical, and 0.45 mm in diameter. The histological analyses revealed tubular renal compression and cellular degeneration in the area adjacent to the xenomas. The spores are ellipsoid, with well-marked valves, caudal projection, and two elongated polar capsules of equal size. The mature spores measure approximately 15.6 μm in length, with the caudal appendage split posteriorly; 24.3 μm in length, for a total spore length of 40.0 μm; and a width of 4.1 μm. The polar capsules are pyriform, 5.5 μm long and 1.7 μm wide. A phylogenetic analysis based on Bayesian inference confirmed that the specimens represented a new species, which was denominated Henneguya quelen n. sp.
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Ellipsomyxa arariensis n. sp. (Myxozoa: Ceratomyxidae), a new myxozoan parasite of Pygocentrus nattereri Kner, 1858 (Teleostei: Characidae) and Pimelodus ornatus Kner, 1858 (Teleostei: Pimelodidae) from Marajó Island, in the Brazilian Amazon region. Parasitol Res 2018; 117:3537-3545. [DOI: 10.1007/s00436-018-6051-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Accepted: 08/09/2018] [Indexed: 11/25/2022]
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Milanin T, Mathews PD, Mertins O, Tavares LER, Silva MRM, Maia AAM. Molecular phylogeny of the gill parasite Henneguya (Myxosporea: Myxobolidae) infecting Astyanax lacustris (Teleostei: Characidae) from fish farm in Brazil. Microb Pathog 2018; 123:372-376. [PMID: 30055245 DOI: 10.1016/j.micpath.2018.07.037] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 07/24/2018] [Accepted: 07/24/2018] [Indexed: 11/28/2022]
Abstract
Molecular data of Henneguya chydadea Barassa, Cordeiro and Arana, 2003, found in the gill filaments of Astyanax lacustris bred in fish farm in the State of Mato Grosso do Sul, Brazil was obtained in order to estimate their phylogenetic position among other platysporines myxosporean. The prevalence of the parasite was 28.1% and the range intensity was 1-3 plasmodia per fish. The shape and measurements of mature myxospores were consistent with the characteristics previously defined to H. chydadea. The SSU rDNA sequence of the myxospores of H. chydadea resulted in a total of 1405 nucleotides, and this sequence did not match any of the myxozoan available in the GenBank. Phylogenetic analysis showed H. chydadea within the clade of histozoic myxosporeans and closed together with Henneguya rotunda and Myxobolus pantanalis reported in the gill arch and fins and gill filaments of Salminus brasiliensis respectively. Nonetheless, the SSU rDNA sequences of H. chydadea, H. rotunda and M. pantanalis have only 85.2% and 84.4% similarity, respectively. This is the first molecular study of a Henneguya species that parasitizes a fish belonging to the genus Astyanax in South America. The importance of myxosporeans introduction to new locations along with infected cultured host is emphasized.
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Affiliation(s)
- Tiago Milanin
- Department of Basic Sciences, Faculty of Animal Science and Food Technology, University of São Paulo, 13635-900, Pirassununga, SP, Brazil
| | - Patrick D Mathews
- Department of Zoology, Institute of Bioscience, University of São Paulo, 05508-090, São Paulo, Brazil.
| | - Omar Mertins
- Department of Biophysics, Paulista School of Medicine, Federal University of São Paulo, 04023-062, São Paulo, Brazil
| | - Luiz E R Tavares
- Laboratory of Animal Parasitology, Federal University of Mato Grosso do Sul, 79070-900, Campo Grande, Brazil
| | - Marcia R M Silva
- Department of Basic Sciences, Faculty of Animal Science and Food Technology, University of São Paulo, 13635-900, Pirassununga, SP, Brazil
| | - Antonio A M Maia
- Department of Basic Sciences, Faculty of Animal Science and Food Technology, University of São Paulo, 13635-900, Pirassununga, SP, Brazil
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Morphological features and molecular phylogeny of Hoferellus azevedoi n. sp. (Myxozoa: Myxobilatidae) found in Chaetobranchus flavescens Heckel, 1840 (Teleostei: Cichlidae) from Marajó Island, northern Brazil. Parasitol Res 2018; 117:1087-1093. [PMID: 29435717 DOI: 10.1007/s00436-018-5785-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 01/24/2018] [Indexed: 10/18/2022]
Abstract
Hoferellus azevedoi n. sp. was found in the urinary bladder of Chaetobranchus flavescens Heckel, 1840 from the Arari River on Marajó Island in Pará, Brazil. This is the first record of a species of the genus Hoferellus in a host from the Brazilian Amazon region. The new species has disporous and polysporous plasmodia, which vary in size and shape, with some being found adhered to the epithelium of the urinary bladder, and others floating in the liquid. The mature spores are sub-spherical in the sutural view, with a number of peripheral projections around the whole surface of the spore. In the sutural view, the spores are 5.3 ± 0.2 (5.2-5.6) μm in length and 7.0 ± 0.7 (6.3-7.7) μm in width, with two piriform polar capsules of equal size, 2.5 ± 0.2 (2.3-2.8) μm long and 1.8 ± 0.2 (1.6-2.0) μm wide. Based on a partial (1312 bps) sequence of the SSU rDNA gene, Hoferellus azevedoi n. sp. was distinguished from all the other myxozoan species deposited in GenBank. Phylogenetically, based on Bayesian inference and p-distances, the new species was allocated to the "Freshwater Urinary-Bladder" clade, together with other myxozoan parasites of the excretory system. Based on the morphological data, supported by the partial sequence of the SSU rDNA gene, we describe a new species of myxozoan, Hoferellus azevedoi n. sp.
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Novel Henneguya spp. (Cnidaria: Myxozoa) from cichlid fish in the Amazon basin cluster by geographic origin. Parasitol Res 2018; 117:849-859. [DOI: 10.1007/s00436-018-5762-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 01/11/2018] [Indexed: 12/28/2022]
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Mathews PD, Naldoni J, Adriano EA. Morphology and small subunit rDNA-based phylogeny of a new Henneguya species, infecting the ornamental fish Corydoras leucomelas from the Peruvian Amazon. Acta Trop 2017; 176:51-57. [PMID: 28754253 DOI: 10.1016/j.actatropica.2017.07.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Revised: 07/16/2017] [Accepted: 07/18/2017] [Indexed: 11/16/2022]
Abstract
A new species of Myxosporea, Henneguya loreotoensis n. sp. is described parasitizing the gill filaments from 17 of 35 specimens (48.5%) of Corydoras leucomelas (Siluriformes: Callichthyidae) caught in the Nanay River, near village Ninarumi, in the Loreto state, Peru. Mature spores were ellipsoidal in shape from the frontal view, measuring 36.2±0.1μm (36.1-36.3) in total length, 14.3±0.1μm (14.2-14.4) in body length, 5.1±0.1μm (4.9-5.3) in width and 21.9±0.1μm (21.8-22.0) in the caudal process. The two polar capsules were symmetrical and elongated, measuring 5.1±0.1μm (4.9-5.3) in length and 2.4±0.2μm (2.1-2.7) in width, containing a polar filament with five coils arranged obliquely to the longitudinal axis. The sporoplasm was binucleate. Partial sequencing of the ssu-rDNA of H. loretoensis n. sp. resulted in a total of 1676 nucleotides, and this sequence did not match any of the myxozoan available in the GenBank. The phylogenetic analysis shows H. loretoensis n. sp. as a sister species of Henneguya paraensis, another amazonian myxozoan parasite of Cichla temensis (Perciformes: Cichlidae).
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Affiliation(s)
- Patrick D Mathews
- Department of Animal Biology, Institute of Biology, University of Campinas- UNICAMP, Avenida Bertrand Russel, s/n, Cx. 6109, 13083-970 Campinas, SP, Brazil.
| | - Juliana Naldoni
- Department of Ecology and Evolutionary Biology, Federal University of São Paulo-UNIFESP, Rua Professor Arthur Riedel, 275, Jardim Eldorado, 09972-270 Diadema, SP, Brazil
| | - Edson A Adriano
- Department of Animal Biology, Institute of Biology, University of Campinas- UNICAMP, Avenida Bertrand Russel, s/n, Cx. 6109, 13083-970 Campinas, SP, Brazil; Department of Ecology and Evolutionary Biology, Federal University of São Paulo-UNIFESP, Rua Professor Arthur Riedel, 275, Jardim Eldorado, 09972-270 Diadema, SP, Brazil.
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