First record of myxozoan parasites from fresh water fishes of Jammu and Kashmir and their pathogenecity

Dar, Shoaib Ali; Kaur, Harpreet; Chishti, M. Z.

doi:10.1016/j.micpath.2017.02.027

Cited by 12 publications

(7 citation statements)

References 27 publications

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“…A large number of myxozoan species have been described infecting freshwater fishes in wetlands and aquaculture in Punjab (Singh and Kaur 2012a, b, c, d;Singh and Kaur 2014;Kaur 2014;Kaur et al 2014a, b;Kaur and Katoch 2014: Kaur and Gupta 2015Dar et al 2017). In the present study, two new species belonging to the genus Myxobolus Butschli infecting gill lamellae and gill filaments of Cirrhinus mrigala (Ham.)…”

Section: Introductionmentioning

confidence: 58%

A report on two new myxozoan parasites infecting gills of fingerlings of Indian major carps cultured in nursery ponds in Punjab (India)

Kaur

Ahmad

2017

J Parasit Dis

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This paper presents the morphological characteristics of two new species belonging to the genus viz n. sp. and n. sp., parasites infecting gill lamellae and gill filaments of fingerlings of (Ham.) and (Ham.) respectively collected from nursery ponds located in the village Fagan Majra, District Fatehgarh Sahib, Punjab (India). A total of 90 fingerlings were examined (40 and 50 ). Out of which, 32 and 19 fishes were found infected. The total prevalence rate was recorded as 56.66%. The age of the fish was recorded as 2-3 months and length of the fish ranged 4-4.5 cm. The plasmodia of n. sp. were round to irregular, 0.6-1.0 mm in diameter. Myxospores oval to spherical, pot-shaped in frontal view with a prominent knob at anterior end, measured 5.83 × 4.29 µm in size. Polar capsules were equal, broadly pyriform, 1.95 × 1.70 µm in size having 3-4 polar filament coils. The plasmodia of n. sp. were round to oval, 0.8-1.5 µm in diameter. Myxospores egg-shaped in frontal view also having prominent knob at the anterior end, measured 8.58 × 5.2 µm in size. Polar capsules were equal, pyriform, 3.47 × 1.80 µm in size having 5-6 polar filament coils. Gill plasmodium index showed heavy infection in both of the species. This is the first report of myxobolid infection in the fingerlings of Indian major carps in nursery ponds in Punjab (India).

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Section: Introductionmentioning

confidence: 58%

A report on two new myxozoan parasites infecting gills of fingerlings of Indian major carps cultured in nursery ponds in Punjab (India)

Kaur

Ahmad

2017

J Parasit Dis

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“…Kaur & Katoch (2016) revealed that cysts of Myxobolus in the secondary gill lamellae induce hypertrophy and in ammation of secondary lamellae, leading to asphyxia in the host. Dar et al (2017) reported inactivation of infected gill lamellae due to intra-lamellar vascular (LV3) type infection causing necrosis, hypertrophy and hyperplasia of the calciform cells. Marcotegui & Martorelli (2017) observed that cysts of M. saladensis infecting the gill epithelium of M. liza may interfere with the respiratory function of the host.…”

Section: Discussionmentioning

confidence: 99%

Morphological and molecular description of a new species of Myxobolus (Myxosporea: Myxobolidae) infecting Planiliza macrolepis (Smith, 1846) from India

2021

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The present paper describes a novel species of Myxobolus parasitizing the gill laments of the largescale mullet, Planiliza macrolepis from Cochin backwaters, Kerala, India. The parasite develops in the gill laments; plasmodia elongated, milky white, measured 1.37 -2.18 (1.78 ± 0.35) mm x 0.07-0.12 (0.10 ± 0.02) mm in size. Mature myxospores ovoid in valvular view, biconvex in sutural view with smooth shell valves and measured 6.24 -7.02 (6.63 ± 0.23) × 5.01 -6.18 (5.68 ± 0.25) μm in size. Polar capsules equal, oval with pointed anterior ends, 3.07 -3.58 (3.33 ± 0.12) × 1.68 -2.42 (2.09 ± 0.18) μm in size. Polar laments with 4 coils, measured 29.61 ± 4.75 μm in length when extruded. Sporoplasm binucleate with a rudimentary nucleus and a vacuole. A comparison with related Myxobolus species revealed signi cant morphological & morphometric differences. In BLASTN and genetic distance analysis, the present parasite showed high divergence with other myxosporean sequences, indicating its molecular uniqueness. In Maximum Likelihood and Bayesian Interference analysis, the present species stands out with M. ramadus as sister branch within the Myxobolus clade. In infected gill laments, the plasmodia caused swelling/deformation, compression of lamellae and reduction in respiratory surface area. Three of 222 P. macrolepis screened were infected, indicating a prevalence of 1.3%. Considering the morphological, morphometric, molecular and phylogenetic differences with the previously described species of myxosporeans, along with the dissimilarities in host and geographical locations, the present parasite is treated as a new species and the name Myxobolus cochinensis n. sp. is proposed.

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“…Initially, identification with spore morphology was used for the basis of identification of myxozoan species. In the early 1990s, phenotypic features such as hosts, organs, and tissue specificity were used as important characteristics for specific identification [40,41,42]. Then,…”

Section: Molecular Detectionmentioning

confidence: 99%

Molecular Detection, Histopathology, and Scanning Electron Microscopy of Myxobolus koi Infecting Cyprinus carpio Koi

Soelistyoadi

Yanuhar

Maftuch

2019

JELS

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Myxobolus koi is a type of parasite that infects many freshwater fish through myxospores, resulting in a disease called myxobolosis. This research aimed is to investigate the clinical symptoms that occur in the gills of infected Koi carp (C. carpio). The utilized methods in this study are molecular detection, histopathology, and Scanning Electron Microscopy (SEM). Koi carp samples that are suspected to be infected with Myxobolus koi show several clinical signs, such as swollen and pale-colored gills and gill covers (opercula) that do not close completely, as well as white spots that appear on the edge of the lamella. The results of this study showed that through histological observations, there were changes characterized by hyperplasia of the primary lamella cartilage that envelops parasitic cysts and the encapsulation process that surrounds the cysts by gill cartilage in infected fish; SEM showed oval and elongated spores of a size of ± 12 µm (800x). The DNA template from gill tissues in clinically infected and uninfected fish was examined by PCR testing with primers ERB 1 (Forward) and ERB 10 (Reverse); the results of electrophoresis in infected fish were detected at 2000 bp.

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First record of myxozoan parasites from fresh water fishes of Jammu and Kashmir and their pathogenecity

Cited by 12 publications

References 27 publications

A report on two new myxozoan parasites infecting gills of fingerlings of Indian major carps cultured in nursery ponds in Punjab (India)

A report on two new myxozoan parasites infecting gills of fingerlings of Indian major carps cultured in nursery ponds in Punjab (India)

Morphological and molecular description of a new species of Myxobolus (Myxosporea: Myxobolidae) infecting Planiliza macrolepis (Smith, 1846) from India

Molecular Detection, Histopathology, and Scanning Electron Microscopy of Myxobolus koi Infecting Cyprinus carpio Koi

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