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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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Rangel LF, Elloumi A, Quilichini Y, Santos MJ, Bahri S. Morphological and molecular characterization of Chloromyxum dasyatidis n. sp. (Myxosporea: Chloromyxidae) in the common stingray Dasyatis pastinaca (Linnaeus) from Tunisian waters (Central Mediterranean Sea). Syst Parasitol 2023; 100:617-630. [PMID: 37689605 DOI: 10.1007/s11230-023-10111-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 08/18/2023] [Indexed: 09/11/2023]
Abstract
A new species of Chloromyxum Mingazzini, 1890, C. dasyatidis n. sp., is described from the gallbladder of the elasmobranch fish Dasyatis pastinaca (Linnaeus) from the Mediterranean coast off Tunisia. Mature myxospores were subspherical measuring 13.0 ± 0.3 (12.5-13.9) µm in length, 11.3 ± 0.5 (10.2-12.2) µm in width, and 11.8 ± 0.5 (11.4-12.7) µm in thickness. Four pyriform polar capsules 4.4 ± 0.3 (4.0-4.9) µm long and 3.5 ± 0.3 (3.0-3.8) µm wide. Valves were ornamented by 5 to 7 elevated surface ridges and displayed short caudal filaments. Chloromyxum dasyatidis n. sp. had an overall prevalence of infection of 38.5%, with significant seasonal variation, being more prevalent during summer (60.0%) and autumn (70.8%). Phylogenetically, this species grouped within the Chloromyxum sensu stricto lineage, forming a small clade together with the genetically more similar species C. acuminatum and C. myolibati, both from stingray hosts.
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Affiliation(s)
- Luis F Rangel
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), Laboratory of Animal Parasitology and Pathology, University of Porto, Matosinhos, Portugal.
- CIIMAR, Biology Department, Faculty of Sciences, University of Porto, Porto, Portugal.
| | - Amira Elloumi
- Research Laboratory of Biodiversity, Ecology and Parasitology of Aquatic Ecosystems, Faculty of Sciences of Tunis, University of Tunis El Manar, El Manar I, 2092, Tunis, Tunisia
| | - Yann Quilichini
- UMR SPE 6134 CNRS, University of Corsica Pascal Paoli, Corte, France
| | - Maria J Santos
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), Laboratory of Animal Parasitology and Pathology, University of Porto, Matosinhos, Portugal
- CIIMAR, Biology Department, Faculty of Sciences, University of Porto, Porto, Portugal
| | - Sihem Bahri
- Research Laboratory of Biodiversity, Ecology and Parasitology of Aquatic Ecosystems, Faculty of Sciences of Tunis, University of Tunis El Manar, El Manar I, 2092, Tunis, Tunisia
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Rocha S, Filipe Rangel L, Casal G, Severino R, Soares F, Rodrigues P, Santos MJ. Occurrence of two myxosporean parasites in the gall bladder of white seabream Diplodus sargus (L.) (Teleostei, Sparidae), with the morphological and molecular description of Ceratomyxa sargus n. sp. PeerJ 2023; 11:e14599. [PMID: 36655052 PMCID: PMC9841901 DOI: 10.7717/peerj.14599] [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: 04/08/2022] [Accepted: 11/29/2022] [Indexed: 01/15/2023] Open
Abstract
Myxosporeans are widespread cnidarian parasites that usually parasitize fish as part of their complex life cycle, thus constituting a potential threat for the aquaculture industry. White seabream Diplodus sargus (L.) is a commercially valuable sparid fish reared in Southern European aquacultures. Nonetheless, knowledge on myxosporean infections potentially harming the sustainable production of this fish is extremely limited. In this study, a myxosporean survey was conducted on D. sargus specimens reared in two Southern Portuguese fish farms. Two coelozoic myxosporeans were detected infecting the gall bladder, and are herein reported based on microscopic and molecular procedures: Ceratomyxa sargus n. sp. and Zschokkella auratis Rocha et al., 2013, previously described from reared stocks of gilthead seabream Sparus aurata in the same geographic locality. Ceratomyxa sargus n. sp. is the 12th species of the genus to be reported from Southern European sparids, reinforcing a substantial radiation of Ceratomyxa within this fish family and geographic region. SSU rRNA-based Bayesian inference and maximum likelihood analyses revealed C. sargus n. sp. positioned separately from other sparid-infecting Ceratomyxa spp. reported from Southern European countries, demonstrating that this species does not share a more immediate common ancestor with its closest relatives based on host affinity and geography. The recognition of a novel sparid-infecting lineage within the Ceratomyxa clade strengthens the contention that this genus entered sparid fish multiple times, namely in the Southern European region. The identification of Zschokkella auratis infections in D. sargus demonstrates that host shift has occurred among sparids reared in the Southern Portuguese coast. This agrees with the broad host specificity that is usually attributed to this genus, and that may be suggested to be the outcome of the capacity of the Zschokkella morphotype to undergo host shift/switch based on our findings and the limited molecular data available for this genus. Thus, a better understanding of Zschokkella host-associated diversification and dispersal mechanisms requires the increasing availability of molecular data from infections of the same species occurring in multiple hosts and geographical locations.
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Affiliation(s)
- Sónia Rocha
- Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal,Instituto de Investigação e Inovação em Saúde (i3S), University of Porto, Porto, Portugal
| | - Luís Filipe Rangel
- Laboratory of Animal Pathology, Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Porto, Portugal,Department of Biology, Faculty of Sciences (FCUP), University of Porto, Porto, Portugal
| | - Graça Casal
- Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal,TOXRUN – Toxicology Research Unit, University Institute of Health Sciences, CESPU, CRL, Gandra, Portugal
| | - Ricardo Severino
- Laboratory of Animal Pathology, Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Porto, Portugal
| | | | - Pedro Rodrigues
- Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal,Instituto de Investigação e Inovação em Saúde (i3S), University of Porto, Porto, Portugal
| | - Maria João Santos
- Laboratory of Animal Pathology, Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Porto, Portugal,Department of Biology, Faculty of Sciences (FCUP), University of Porto, Porto, Portugal
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Elloumi A, Rangel LF, Santos MJ, Bahri S. Myxidium tunisiensis n. sp. (Myxosporea: Myxidiidae) infecting the rough skate Raja radula Delaroche, 1908 (Rajiformes: Rajidae) from North East Tunisia. Parasitol Res 2023; 122:19-33. [PMID: 34494121 DOI: 10.1007/s00436-021-07306-5] [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: 01/29/2021] [Accepted: 08/29/2021] [Indexed: 01/10/2023]
Abstract
A new marine myxosporean, Myxidium tunisiensis n. sp. (Myxosporea: Myxidiidae), is described infecting the gallbladder of the rough skate Raja radula Delaroche, 1908 (Chondrichthyes: Rajidae) harvested from the Bay of Bizerte, Tunisia. Observed stages of the parasite were floating free in the bile. Plasmodia, disporic or polysporic, contain disporic pansporoblasts measuring 23.0-27.2 μm in maximum diameter and 21.0-25.5 μm in minimum diameter. Mature myxospores, which are elongated, typically fusiform measured 18.6 ± 1.7 (17.2-22.0) μm in length, 8.6 ± 1.2 (7.2-11.2) μm in width and 8.2 ± 0.9 (6.4-10.1) in thickness. Myxospore valves are symmetrical with 9-10 longitudinal striations. Two polar capsules, pyriform, were equal in size, measuring 5.8 ± 0.4 (5.2-6.7) μm in length and 3.1 ± 0.2 (3.0-3.2) μm in width, with 5-6 polar filament turns. The infection was prevalent throughout the year with the highest prevalence in autumn (81.8%) and the lowest in winter (32.3%). The seasonal prevalence of M. tunisiensis n. sp. in the Bay of Bizerte appeared to fluctuate according to seawater temperature. The morphological and morphometrical differences with all Myxidium spp. described so far, complemented by molecular data, prove clearly that the present species is a new member of the genus Myxidium. The SSU rDNA phylogenetic analyses revealed that Myxidium tunisiensis n. sp. clustered within the oligochaete-gallbladder clade in a basal position to the marine subclade of Myxidium baueri and Myxidium coryphaenoideum. While the new species branching pattern is stable in the ML and the BI analyses, it changed in the MP analysis. This is the first molecular study of a Myxidium species infecting an elasmobranch host inhabiting the Mediterranean Sea.
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Affiliation(s)
- Amira Elloumi
- Research Laboratory of Biodiversity, Parasitology and Ecology of Aquatic Ecosystems, Faculty of Sciences of Tunis, University of Tunis El Manar, El Manar I, 2092, Tunis, Tunisia.
| | - Luis F Rangel
- Laboratory of Animal Pathology, Department of Biology, Faculty of Sciences, University of Porto, Porto, Portugal.,Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Matosinhos, Portugal
| | - Maria J Santos
- Laboratory of Animal Pathology, Department of Biology, Faculty of Sciences, University of Porto, Porto, Portugal.,Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Matosinhos, Portugal
| | - Sihem Bahri
- Research Laboratory of Biodiversity, Parasitology and Ecology of Aquatic Ecosystems, Faculty of Sciences of Tunis, University of Tunis El Manar, El Manar I, 2092, Tunis, Tunisia
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5
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Mirandola Dias Vieira DH, Bravin Narciso R, da Silva RJ. Diversity of myxozoans parasitizing the catfish Rhamdia quelen (Siluriformes: Heptapteridae), in southeastern Brazil, based on morphological and molecular evidence. Sci Rep 2022; 12:17596. [PMID: 36266420 PMCID: PMC9585194 DOI: 10.1038/s41598-022-22418-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 10/14/2022] [Indexed: 01/13/2023] Open
Abstract
Rhamdia quelen is a commercially important fish in South America. During the survey of myxozoan infections in fishes from Pardo River, Paranapanema River basin, São Paulo State, Brazil, we describe three new species of Henneguya found parasitizing gills of R. quelen: Henneguya bagre n. sp., Henneguya breviscauda n. sp and Henneguya novaerae n. sp. The descriptions were based on myxospores morphology and small subunit ribosomal DNA partial sequences. Phylogenetic analysis showed a clade formed by species that parasitize Siluriformes, with Henneguya jundiai as a sister species of Henneguya bagre n. sp., Henneguya breviscauda n. sp and Henneguya novaerae n. sp. Our study indicates that the parasites infecting R. quelen belong to a lineage of myxozoans infecting Heptapteridae fishes. Using molecular and morphological characterization, the species were identified as new species for the genus Henneguya. Based on our analysis we recommend monitoring the presence of these parasites in farmed fishes, to analyze possible pathologies caused by them.
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Affiliation(s)
- Diego Henrique Mirandola Dias Vieira
- grid.410543.70000 0001 2188 478XInstitute of Biosciences, Division of Parasitology, São Paulo State University (Unesp), Botucatu, SP 18618-689 Brazil
| | - Rodrigo Bravin Narciso
- grid.410543.70000 0001 2188 478XInstitute of Biosciences, Division of Parasitology, São Paulo State University (Unesp), Botucatu, SP 18618-689 Brazil
| | - Reinaldo José da Silva
- grid.410543.70000 0001 2188 478XInstitute of Biosciences, Division of Parasitology, São Paulo State University (Unesp), Botucatu, SP 18618-689 Brazil
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6
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Description of two new species of Ceratomyxa Thélohan, 1892 (Cnidaria: Myxosporea) infecting the gallbladder of Epinephelinae fishes from Tunisian waters using morphological and molecular data. Parasitol Res 2022; 121:1317-1328. [DOI: 10.1007/s00436-022-07473-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 02/17/2022] [Indexed: 11/25/2022]
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7
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Chen W, Zhang D, Whipps CM, Yang C, Zhao Y. Description of Myxidium pseudocuneiforme n. sp. (Myxosporea: Myxidiidae) from Cyprinus carpio in China, with the Resolution on a Taxonomic Dilemma of Myxidium cuneiforme. J Eukaryot Microbiol 2021; 68:e12859. [PMID: 34022088 DOI: 10.1111/jeu.12859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Investigations on myxozoan parasites of fish from Chongqing in China, revealed two Myxidium cuneiforme-like myxosporeans infecting the gallbladder of Cyprinus carpio carpio and Carassius auratus. We researched their myxospore morphology, and analyzed their genetic similarity and phylogenic relationships to other myxozoans based on small subunit ribosomal DNA (18S rDNA) sequences. Although both parasites recovered were morphologically similar, the myxosporean isolated from C. auratus was consistent in morphology to Myxidium cuneiforme, which was described from this host species. The parasite isolated from C. c. carpio had overlapping myxospore dimensions to M. cuneiforme, but on average, the polar capsules were not as long. More importantly, this parasite was genetically distinct from M. cuneiforme with 96.3% and 96.5% similarity in two sequences of 18S rDNA, and we propose the name Myxidium pseudocuneiforme n. sp. for this myxozoan from common carp. Its mature myxospores are ellipsoidal and asymmetric with pointed ends in valvular view, arc-shaped or fusiform in sutural view. The pyriform polar capsules are equal in size, and polar filament with 5-6 coils. This study highlights that molecular characteristics and host specificity are indispensable for myxozoan species identification when presented with the taxonomic dilemma of whether we are observing one species that exhibits slight morphological differences or multiple, but similar, species in different hosts.
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Affiliation(s)
- Wei Chen
- Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), School of Life Sciences, Southwest University, Chongqing, China.,Chongqing Key Laboratory of Animal Biology, College of Life Sciences, Chongqing Normal University, Chongqing, China
| | - Diaodiao Zhang
- Chongqing Key Laboratory of Animal Biology, College of Life Sciences, Chongqing Normal University, Chongqing, China
| | - Christopher M Whipps
- College of Environmental Science and Forestry Biology, State University of New York (SUNY-ESF), Syracuse, NY, USA
| | - Chengzhong Yang
- Chongqing Key Laboratory of Animal Biology, College of Life Sciences, Chongqing Normal University, Chongqing, China
| | - Yuanjun Zhao
- Chongqing Key Laboratory of Animal Biology, College of Life Sciences, Chongqing Normal University, Chongqing, China
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8
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Azizi R, Yemmen C, Rangel LF, Santos MJ, Bahri S. Morphology, seasonality and molecular characterization of Ceratomyxa draconis n. sp. parasite of Trachinus draco (L.) from the Bay of Bizerte, Tunisia. Parasitol Res 2020; 119:2431-2438. [PMID: 32394002 DOI: 10.1007/s00436-020-06664-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Accepted: 03/15/2020] [Indexed: 10/24/2022]
Abstract
The specimens of Trachinus draco collected from the Bay of Bizerte were found to be infected with a new Ceratomyxa species described as Ceratomyxa draconis n. sp. The sequence of small subunit ribosomal RNA gene obtained in this study differs from other Ceratomyxa sequences available in GenBank. Mature spores of this species were elongated and crescent-shaped in sutural view, measuring 7.4 ± 0.77 (6.4-8.0) μm in thickness and 30.8 ± 1.65 (28.8-32.8) μm in width. The polar capsules were spherical, equal in size, and measuring 3.3 ± 0.2 (3.6-4.0) μm in diameter. The Ceratomyxa draconis n. sp. showed a clearly seasonal variation of prevalence with highest prevalence noted during summer months.
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Affiliation(s)
- Ramla Azizi
- Laboratory of Biodiversity, Parasitology and Ecology of Aquatic Ecosystems, Faculty of Sciences of Tunis, University of Tunis El Manar, 2092, Tunis, Tunisia
| | - Chiraz Yemmen
- Laboratory of Biodiversity, Parasitology and Ecology of Aquatic Ecosystems, Faculty of Sciences of Tunis, University of Tunis El Manar, 2092, Tunis, Tunisia.
| | - Luís F Rangel
- Laboratory of Animal Pathology, Department of Biology, Faculty of Sciences, University of Porto, Porto, Portugal.,Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Porto, Portugal
| | - Maria J Santos
- Laboratory of Animal Pathology, Department of Biology, Faculty of Sciences, University of Porto, Porto, Portugal.,Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Porto, Portugal
| | - Sihem Bahri
- Laboratory of Biodiversity, Parasitology and Ecology of Aquatic Ecosystems, Faculty of Sciences of Tunis, University of Tunis El Manar, 2092, Tunis, Tunisia
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9
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da Silva MF, de Carvalho AEFB, Hamoy I, Matos ER. Coelozoic parasite of the family Ceratomyxidae (Myxozoa, Bivalvulida) described from motile vermiform plasmodia found in Hemiodus unimaculatus Bloch, 1794. Parasitol Res 2020; 119:871-878. [PMID: 31897794 DOI: 10.1007/s00436-019-06505-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Accepted: 10/11/2019] [Indexed: 01/20/2023]
Abstract
Myxozoans of the family Ceratomyxidae are common coelozoic parasites of marine, anadromous, and freshwater fish, and may also be found, less frequently, parasitizing the tissue of these hosts. The diversity and ecology of the freshwater species of the genus Ceratomyxa have been poorly investigated, leading to a knowledge gap that restricts the understanding of the distribution and prevalence of this group of parasites. In the present study, parasites were found inside vermiform plasmodia, characterised by oscillatory movements in the characiform species Hemiodus unimaculatus. The crescent-shaped and elongated spores, perpendicular to the suture line, have a mean length of 28.9 ± 2.7 μm and width of 2.6 ± 0.1 μm, with two symmetrical oval polar capsules, 1.9 ± 0.3 μm in length and 1.7 ± 0.2 μm in width, containing polar filaments with three or four coils, located near the central suture, with symmetrical lateral elongations 14.3 ± 1.1 μm in length and binucleate amoeboid sporoplasm. The integrated comparative analysis of the morphological characteristics and partial SSU rRNA sequences supported the identification of a new species of coelozoic Ceratomyxa, found in the gallbladder of H. unimaculatus, from the Tocantins basin, in the municipalities of Estreito and Imperatriz in eastern Brazilian Amazonia.The new species was denominated Ceratomyxa fonsecai n. sp.
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Affiliation(s)
- Marcelo Francisco da Silva
- Postgraduate Programme in the Biology of Infectious and Parasitic Agents (BAIP), Federal University of Pará (UFPA), Belem, Brazil
- State University of the Tocantina Region of Maranhão-UEMASUL, Imperatriz, Maranhão, Brazil
| | | | - Igor Hamoy
- Laboratory of Applied Genetics-LGA, Federal Rural University of Amazonia-UFRA, Belem, Pará, Brazil
| | - Edilson R Matos
- Carlos Azevedo Research Laboratory, Federal Rural University of the Amazon (UFRA), Avenida Presidente Tancredo Neves, 2501, Montese, Belém, Pará, 66077-901, Brazil.
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10
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Thabet A, Abdel-Baki AAS, Harrath AH, Mansour L. Morphological and molecular aspects of Ceratomyxa ghannouchensis n. sp. and C. pallida Thélohan 1894 infecting the bogue, Boops boops (l.). J NAT HIST 2019. [DOI: 10.1080/00222933.2019.1597202] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Aouatef Thabet
- Laboratoire de Biodiversité, Parasitologie et Ecologie des Écosystèmes Aquatiques, Département de Biologie, Faculté des Sciences de Tunis, Université De Tunis El Manar, Tunis, Tunisia
| | - Abdel-Azeem S. Abdel-Baki
- Zoology Department, College of Science, King Saud University, Riyadh, Saudi Arabia
- Zoology Department, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt
| | - Abdel Halim Harrath
- Zoology Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Lamjed Mansour
- Laboratoire de Biodiversité, Parasitologie et Ecologie des Écosystèmes Aquatiques, Département de Biologie, Faculté des Sciences de Tunis, Université De Tunis El Manar, Tunis, Tunisia
- Zoology Department, College of Science, King Saud University, Riyadh, Saudi Arabia
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11
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Garbouj M, Rangel LF, Santos MJ, Bahri S. Ceratomyxa gouletti n. sp. (Myxosporea: Ceratomyxidae), a parasite of the red scorpionfish Scorpaena scrofa (L.) from Tunisian waters. Parasitol Res 2018; 117:1933-1939. [PMID: 29713903 DOI: 10.1007/s00436-018-5888-5] [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: 01/12/2018] [Accepted: 04/19/2018] [Indexed: 10/17/2022]
Abstract
Ceratomyxa gouletti n. sp. is a new parasite described from the gallbladder of the red scorpionfish Scorpaena scrofa (Scorpaeniformes: Scorpaenidae) collected from La Goulette in the Northeast of Tunisia. The parasite develops disporic plasmodia, elliptical to ovoid in shape, measuring up to 33.1 ± 3.6 (28.0-38.2) μm in length and 12.5 ± 2.1 (11.3-14.0) μm in width. Mature spores are elongated transversely and crescent-shaped with rounded ends and unequal shell valves, measuring 8.1 ± 1.27 (7.2-9.0) μm in length and 32.0 ± 2.5 (27.0-38.2) μm in thickness. Sutural line is straight and visible between valves. Polar capsules are subspherical with 3.15 ± 0.63 (2.7-3.6) μm long and 1.9 ± 0.14 (1.8-2.0) μm wide. Posterior spore angle is slightly concave 160°-175°. Molecular analysis based on the small subunit 18S rDNA sequence shows that C. gouletti n. sp. is different from all other ceratomyxid species DNA sequences in GenBank. Phylogenetic trees clustered the new species with long-branching Ceratomyxa species, and it was closely related to the species Ceratomyxa longipes from two gadid fish hosts with 89% bootstrap support.
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Affiliation(s)
- Myriam Garbouj
- Research Unit of Integrative Biology, Evolutionary and Functional Ecology of Aquatic Systems, Faculty of Sciences of Tunis, University of Tunis El Manar, 2092, Tunis, Tunisia.
| | - Luís F Rangel
- Laboratory of Animal Pathology, Department of Biology, Faculty of Sciences, University of Porto, Porto, Portugal.,Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Porto, Portugal
| | - Maria J Santos
- Laboratory of Animal Pathology, Department of Biology, Faculty of Sciences, University of Porto, Porto, Portugal.,Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Porto, Portugal
| | - Sihem Bahri
- Research Unit of Integrative Biology, Evolutionary and Functional Ecology of Aquatic Systems, Faculty of Sciences of Tunis, University of Tunis El Manar, 2092, Tunis, Tunisia
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12
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Synopsis of the species of Ceratomyxa Thélohan, 1892 (Cnidaria, Myxosporea, Ceratomyxidae) described between 2007 and 2017. Syst Parasitol 2018; 95:427-446. [PMID: 29594910 DOI: 10.1007/s11230-018-9791-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2017] [Accepted: 01/13/2018] [Indexed: 10/17/2022]
Abstract
A synopsis of the species of Ceratomyxa Thélohan, 1892 (Cnidaria, Myxosporea, Ceratomyxidae) described between 2007 and 2017 is presented, including 83 nominal species. For each species, the most important morphological and morphometric features are indicated in tabulated format. Included are also the site of infection within the host, and geographical location, plus a full bibliography of the original records of species. Molecular data (GenBank accession numbers) are also provided whenever possible.
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Abdel-Baki AAS, Al-Qahtani HA, Almalki E, Al-Quraishy S, Al Ghamdi A, Mansour L. Morphometeric criteria and partial sequence of the 18S rRNA gene of Ceratomyxa sultani n. sp. from the gallbladder of Upeneus margarethae in the Arabian Gulf, with a note on its seasonal prevalence. Saudi J Biol Sci 2017; 25:597-603. [PMID: 29686524 PMCID: PMC5910637 DOI: 10.1016/j.sjbs.2017.12.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 11/22/2017] [Accepted: 12/03/2017] [Indexed: 01/03/2023] Open
Abstract
This paper describes a new coelozoic myxosporean parasite named Ceratomyxa sultani n. sp. isolated from the gallbladder of Upeneus margarethae sourced from the Arabian Gulf off Saudi Arabia. Of 104 U. margarethae specimens examined, 27 (26%) were infected, with the highest prevalence in winter and lowest in autumn. The pseudoplasmodia were disporous and irregularly elliptical in shape, with an average size of 22 × 17 μm. Mature spores were mostly elliptical with symmetrical valves and equal spherical polar capsules. Spores were 9 µm in length and 25 µm in thickness, while polar capsules were 4 µm wide with four filament coils. The paper further provides a morphological comparison with closely related Ceratomyxa spp. together with phylogenetic analysis based on the partial 18S rRNA sequence, which revealed that C. sultani n. sp. clustered within a robust clade of Ceratomyxa species from the Arabian Gulf and Red Sea or nearby geographic regions.
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Affiliation(s)
- Abdel-Azeem S. Abdel-Baki
- Zoology Department, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
- Zoology Department, Faculty of Science, Beni-Suef University, Egypt
- Corresponding author at: Zoology Department, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia.
| | - Hussain A. Al-Qahtani
- Zoology Department, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Esam Almalki
- Department of Medical Laboratory, College of Applied Medical Sciences, Majmaah University, Saudi Arabia
| | - Saleh Al-Quraishy
- Zoology Department, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Ali Al Ghamdi
- Biology Department, College of Science, Al Baha University, Al Baha, Saudi Arabia
| | - Lamjed Mansour
- Zoology Department, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
- Unité de Recherche de Biologie intégrative et Écologie évolutive et Fonctionnelle des Milieux Aquatiques, Département de Biologie, Faculté des Sciences de Tunis, Université De Tunis El Manar, Tunisia
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Zhang B, Zhai Y, Liu Y, Gu Z. Myxobolus pseudowulii sp. n. (Myxozoa: Myxosporea), a new skin parasite of yellow catfish Tachysurus fulvidraco (Richardson) and redescription of Myxobolus voremkhai (Akhmerov, 1960). Folia Parasitol (Praha) 2017; 64. [DOI: 10.14411/fp.2017.030] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2016] [Accepted: 08/18/2017] [Indexed: 11/19/2022]
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Ceratomyxa azevedoi n. sp. (Myxozoa: Myxosporea) parasitizing the gallbladder of Lutjanus ehrenbergii in the Arabian Gulf. Parasitol Res 2017; 116:2757-2763. [PMID: 28842807 DOI: 10.1007/s00436-017-5586-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2017] [Accepted: 08/07/2017] [Indexed: 02/01/2023]
Abstract
A novel myxosporean species, Ceratomyxa azevedoi sp. n. is described from the gallbladder of the blackspot snapper, Lutjanus ehrenbergii (Peters), captured from the Arabian Gulf off Saudi Arabia. A total of 45 (26.8%) out of 168 fish specimens were found to be infected with Ceratomyxa azevedoi sp. n., the highest prevalence being observed in winter (42.9%, 18/42) and the lowest in autumn (11.9%, 5/42). Mature spores appeared as crescent to slightly elliptical-shaped, measuring 5-7 (6) μm in length and 12 (10-14) μm in thickness, with spherical polar capsules containing three polar filament coils. The morphometric and morphological comparison with similar species revealed the taxonomic novelty of this form, suggesting that it should be considered as new species. The phylogenetic analysis of C. azevedoi sp. n., based on partial SSU rDNA sequences, revealed close genetic relatedness to C. buri with 91.3% homogeneity and to C. hamour, with 90.1% homogeneity.
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Morphological description and phylogeny of Ceratomyxa scorpaeni n. sp. (Myxosporea: Ceratomyxidae) infecting the gallbladder of Scorpaena porcus (L.) (Scorpaeniformes: Scorpaenidae) from the bay of Bizerte in Tunisia. Parasitol Res 2016; 115:4495-4502. [PMID: 27637223 DOI: 10.1007/s00436-016-5236-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Accepted: 08/26/2016] [Indexed: 10/21/2022]
Abstract
A new marine myxosporean species Ceratomyxa scorpaeni n. sp. is described using morphological characteristics and small subunit ribosomal DNA (rDNA) sequence data. The parasite was found infecting the gallbladder of Scorpaena porcus Linnaeus, 1758 collected from the Bay of Bizerte. Mature plasmodia were disporous free floating in the bile. Spores were transversely elongated and crescent-shaped with unequal shell valves and measured 7.6 ± 0.2 (7.2-8.0) μm in length and 32.8 ± 0.3 (21.6-44.0) μm in thickness. Two sub-spherical polar capsules equal in size, situated at the same level and measured 3.0 ± 0.2 (3.0-3.2) μm in length and 2.4 ± 0.3 (2.3-3.3) μm in width. The infection with C. scorpaeni n. sp. was prevalent throughout the year with a maximum prevalence of infection during spring and summer. Molecular analysis of the SSU rRNA gene confirmed the parasite as a new member of the genus Ceratomyxa and showed close relationship with the species of Ceratomyxa infecting the gallbladders of Sparidae from the Mediterranean Sea. This is the first report of Ceratomyxa species from the gallbladder of S. porcus in Tunisian coastal waters.
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Mathews PD, Naldoni J, Maia AA, Adriano EA. Morphology and small subunit rDNA-based phylogeny of Ceratomyxa amazonensis n. sp. parasite of Symphysodon discus, an ornamental freshwater fish from Amazon. Parasitol Res 2016; 115:4021-5. [DOI: 10.1007/s00436-016-5173-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Accepted: 06/08/2016] [Indexed: 11/24/2022]
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Thabet A, Tlig-Zouari S, Al Omar SY, Mansour L. Molecular and morphological characterisation of two species of the genus Ellipsomyxa Køie, 2003 (Ceratomyxidae) from the gall-bladder of Liza saliens (Risso) off Tunisian coasts of the Mediterranean. Syst Parasitol 2016; 93:601-11. [DOI: 10.1007/s11230-016-9647-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2016] [Accepted: 05/15/2016] [Indexed: 11/27/2022]
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