Surendran, Sneha and Chandran, Archana and Vijayagopal, P and Sanil, N K (2021) Morphological and molecular characterization of Ceratomyxa xanthopteri n. sp. (Myxosporea: Ceratomyxidae) from the marine ornamental fish Acanthurus xanthopterus Valenciennes 1835 (Acanthuridae) off Vizhinjam coast, Kerala. Parasitology Research. pp. 1-9.
![[img]](http://eprints.cmfri.org.in/style/images/fileicons/text.png) |
Text
Parasitology Research_2021_Sanil N K_Ceratomyxaxanthopteri.pdf Restricted to Registered users only Download (882kB) | Please mail the copy request to cmfrilibrary@gmail.com |
Abstract
A new species of Ceratomyxa infecting the gallbladder of the marine ornamental fish Acanthurus xanthopterus collected from the Vizhinjam coast of Kerala is described. The parasite exhibited a prevalence of 100%. Mature spores recovered from the gallbladder were slightly crescentic with rounded lateral extremities and possessed convex anterior and slightly concave to straight posterior margins. Spore valves two, equal, joined by a straight and prominent suture. Myxospores measured 5.5 ± 0.6 μm in length and 15.9 ± 2.3 μm in thickness. Polar capsules two, equal, spherical, positioned anteriorly on either sides of the suture, 2.3 ± 0.2 μm long and 2.2 ± 0.2 μm wide. Polar filament with four to five coils, 21.2 ± 0.6 μm when extruded. Posterior angle 173.6 ± 5.2°. Early sporogonic stages and monosporic, disporic, and multisporic plasmodial stages were spherical to irregular in shape, with or without filopodia. Histopathologic analysis revealed that spores and developing stages were attached to the gallbladder wall as well as found free in the lumen. Morphologic and morphometric comparison of the present parasite with known species of Ceratomyxa indicated significant differences. In molecular and phylogenetic analyses, the present myxosporean revealed high divergence with related forms and occupied an independent position within the Ceratomyxa clade with high nodal support. Considering the morphological, morphometric, molecular, and phylogenetic dissimilarities with the previously described species of Ceratomyxa and the differences in host and geographic locations, the present species of myxosporean is treated as new and is named Ceratomyxa xanthopteri n. sp.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Ceratomyxa xanthopteri n. sp.; Marine ornamentals; Gallbladder; Myxosporeans; Myxospores; Molecular phylogeny |
| Subjects: | Fish and Fisheries > Fish Disease Invertebrates Aquaculture > Ornamental Fishes |
| Divisions: | CMFRI-Kochi > Marine Biotechnology, Fish Nutrition and Health Division Subject Area > CMFRI > CMFRI-Kochi > Marine Biotechnology, Fish Nutrition and Health Division CMFRI-Kochi > Marine Biotechnology, Fish Nutrition and Health Division Subject Area > CMFRI-Kochi > Marine Biotechnology, Fish Nutrition and Health Division |
| Depositing User: | Arun Surendran |
| Date Deposited: | 26 Oct 2021 10:33 |
| Last Modified: | 14 Jul 2022 05:49 |
| URI: | http://eprints.cmfri.org.in/id/eprint/15435 |
Actions (login required)
 |
View Item |
