1
|
Inoue K, Kasai A, Li YC, Zhang JY, Sato H. Kudoa tanakai n. sp. (Myxozoa: Myxosporea: Multivalvulida), a new kudoid species with spheroid myxospores from the scalpel sawtail (Actinopterygii: Prionurus scalparum) from western Japan. Syst Parasitol 2024; 101:13. [PMID: 38193985 DOI: 10.1007/s11230-023-10137-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Accepted: 11/16/2023] [Indexed: 01/10/2024]
Abstract
We describe a new kudoid species, Kudoa tanakai n. sp., in the scalpel sawfish, Prionurus scalprum (Actinopterygii: Acanthuriformes: Acanthuridae), from the natural water around western Japan. The plasmodia were filamentous, localized in pseudocysts in the myofibers of the trunk muscles. The occurrence of plasmodia in the trunk muscle showed no site preference. Its myxospores were spheroid, measuring 6.6-7.6 (7.0) µm by 5.8-6.9 (6.3) µm in apical view (width) and 5.7-6.6 (6.2) in length (n = 30), with four shell valves and a corresponding number of spheroid polar capsules. Shell valves lacked apical protrusions, but scanning electron microscopy revealed that one of the four shell valves had two semi-lunar flaps at its apical terminus. Nucleotide sequencing of the small and large subunit ribosomal RNA genes of the present isolate showed phylogenetic affinities to kudoid species characterized by spheroid myxospores, such as K. musculoliquefaciens, K. hemiscylli, and K. carcharhini, but was molecularly and morphometrically distinct from these and other kudoid species. For direct comparison, Kudoa hemiscylli was collected from the Pacific spadenose shark, Scoliodon macrorhynchos (Elasmobranchii: Carcharhiniformes: Carcharhinidae), in the South China Sea off Guangdong Province, China, and the myxospore surface of the species was observed using scanning electron microscopy. Our study describes the new host and distribution record of this kudoid species originally described from a variety of elasmobranchs in the Australian Coral Sea.
Collapse
Affiliation(s)
- Ken Inoue
- Laboratory of Parasitology, Joint Graduate School of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi, 753-8515, Japan
| | - Akihiro Kasai
- Laboratory of Parasitology, Joint Graduate School of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi, 753-8515, Japan
| | - Ying-Chun Li
- Faculty of Agricultural Science, Guangdong Ocean University, Mazhang, Zhanjiang, 524088, Guangdong Province, China
| | - Jin-Yong Zhang
- Laboratory of Aquatic Parasitology, School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, 266237, Shandong Province, China
| | - Hiroshi Sato
- Laboratory of Parasitology, Joint Graduate School of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi, 753-8515, Japan.
- Division of Veterinary Parasitology, Department of Veterinary Science, Faculty of Veterinary Medicine, Universitas Airlangga, Kampus C, Mulyorejo, Surabaya, 60115, Indonesia.
| |
Collapse
|
2
|
Eiras JC, Barman GD, Chanda S, Panigrahi AK. An update of the species of Myxosporea (Cnidaria, Myxozoa) described from Indian fish. J Parasit Dis 2023; 47:12-36. [PMID: 36910326 PMCID: PMC9998824 DOI: 10.1007/s12639-022-01558-3] [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: 08/10/2022] [Accepted: 11/27/2022] [Indexed: 12/23/2022] Open
Abstract
A synopsis of Myxosporea (Cnidaria, Myxozoa) species described in about the last 14 years in Indian fish is provided. The synopsis include a total of 97 new species, and 18 species redescribed including significant new data, namely molecular characterization, distributed by 19 genera. For each species are indicated, in tabulated format, the morphological characteristics and the Gen Bank Accession Number whenever possible. Data about the type host and type locality are included also, and a complete list of references is provided. The information presented, combined with former synopsis, allow an update general view about these parasites infecting Indian fish hosts.
Collapse
Affiliation(s)
- Jorge C. Eiras
- Centro Interdisciplinar de Investigação Marinha E Ambiental (CIIMAR/CIMAR), Terminal de Cruzeiros Do Porto de Leixões, Matosinhos, Portugal
- Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Porto, Portugal
| | - Gyan Deb Barman
- Ecotoxicology, Fish and Fisheries, Aquaculture Extension Laboratory, Department of Zoology, University of Kalyani, Kalyani, 741235 India
- Department of Zoology, Kalimpong College, Kalimpong, 734301 West Bengal India
| | - Sukanya Chanda
- Ecotoxicology, Fish and Fisheries, Aquaculture Extension Laboratory, Department of Zoology, University of Kalyani, Kalyani, 741235 India
| | - Ashis Kumar Panigrahi
- Ecotoxicology, Fish and Fisheries, Aquaculture Extension Laboratory, Department of Zoology, University of Kalyani, Kalyani, 741235 India
| |
Collapse
|
3
|
Chinh NN, Van Ha N, Doanh PN, Violetta Y, Yoshinaga T, Shirakashi S, Hallett SL, Whipps CM. Morphological and molecular characterization of Ceratomyxa binhthuanensis n. sp. (Myxosporea: Ceratomyxidae) from the gall bladder of blacktip grouper Epinephelus fasciatus (Perciformes: Serranidae) in the East Sea of Vietnam. Parasitol Res 2022; 121:613-621. [PMID: 35018489 DOI: 10.1007/s00436-021-07419-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 12/23/2021] [Indexed: 11/25/2022]
Abstract
A new myxozoan species, Ceratomyxa binhthuanensis n. sp. (Myxosporea: Ceratomyxidae), was found in the gall bladder of blacktip grouper Epinephelus fasciatus (Perciformes: Serranidae) in the East Sea of Vietnam. Myxospores were observed floating free in the gall bladder of 3 out of 20 fish examined (15%). Mature myxospores were elongate and slightly crescent-shaped and measured 12.2 ± 1.3 (10.8-16.0) μm in thickness and 5.8 ± 0.6 (4.8-6.9) μm in length, with two smooth equal shell valves. The two polar capsules were spherical and equal in size, measuring 2.6 ± 0.3 (2.3-2.9) μm in diameter. The posterior angle was slightly concave, 153.7° ± 5.6° (148.9°-166.0°). Molecular analysis of SSU rDNA sequence showed that Ceratomyxa binhthuanensis n. sp. differs from other Ceratomyxa spp. available in GenBank. Phylogenetic analysis indicated that C. binhthuanensis n. sp. was closely related to three species, Ceratomyxa nolani, Ceratomyxa yokoyamai, and Ceratomyxa cutmorei, which also infect fish hosts of the genus Epinephelus.
Collapse
Affiliation(s)
- Nguyen Ngoc Chinh
- Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet St., Cau Giay Dist., Hanoi, Vietnam.
| | - Nguyen Van Ha
- Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet St., Cau Giay Dist., Hanoi, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet St., Cau Giay Dist., Hanoi, Vietnam
| | - Pham Ngoc Doanh
- Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet St., Cau Giay Dist., Hanoi, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet St., Cau Giay Dist., Hanoi, Vietnam
| | - Yurakhno Violetta
- A. O. Kovalevsky Institute of Biology of the Southern Seas of Russian Academy of Sciences, 2 Nakhimov Ave., 299011, Sevastopol, Russian Federation
| | - Tomoyoshi Yoshinaga
- Laboratory of Fish Diseases, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-Ku, Tokyo, 112-8657, Japan
| | - Sho Shirakashi
- Aquaculture Research Institute, Kindai University, 3153 Shirahama, Nishimuro, Wakayama, 649-2211, Japan
| | - Sascha L Hallett
- Department of Microbiology, Oregon State University, Nash Hall 226, Corvallis, OR, 97331, USA
| | - Christopher M Whipps
- SUNY-ESF, State University of New York College of Environmental Science and Forestry, Environmental and Forest Biology, 1 Forestry Drive, Syracuse, NY, 13210, USA
| |
Collapse
|