The development of Myxobolus pavlovskii (Myxozoa: Myxobolidae) includes an echinactinomyxon-type actinospore

Title:

The development of Myxobolus pavlovskii (Myxozoa: Myxobolidae) includes an echinactinomyxon-type actinospore

Creator:

Marton, Szilvia and Eszterbauer, Edit

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:28ee52b4-839e-4714-af38-07cc5b521f87
uuid:28ee52b4-839e-4714-af38-07cc5b521f87
doi:10.14411/fp.2011.015

Subject:

Myxosporea, life cycle, silver carp, Hypophthalmichthys molitrix, 18S rDNA, histology, and infection experiment

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

Echinactinomyxon-type actinospores were found in a mixed-species oligochaete culture originating from the Temperate Water Fish Hatchery near Budapest, Hungary. On the basis of DNA sequence analysis, the actinospores were identified as Myxobolus pavlovskii (Akhmerov, 1954), the 18S rDNA sequence from myxospores of which is available in GenBank. Silver carp Hypophthalmichthys molitrix (Valenciennes) fry specimens were successfully infected by cohabitation with the echinactinomyxon-releasing oligochaetes, which confirmed the molecular data congruence. The echinactinomyxons and the myxospores that developed in the gills of exposed fish fry were analysed morphologically and on DNA basis. The infected gill tissue was examined histologically. As typical characters of M. pavlovskii, numerous small plasmodia were observed in the epithelia of gill lamellae. Plasmodia contained thousands of myxospores with polar capsules unequal in size and with large intercapsular processes. The 18S rDNA sequence from actinospores and those from myxospores originating from the experimentally infected fish were identical. The oligochaete species releasing actinospores was morphologically determined as Limnodrilus sp. This is the first record of an echinactinomyxon as an alternate stage within the genus Myxobolus.

Language:

English

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Coverage:

157-163

Source:

Folia parasitologica | 2011 Volume:58 | Number:2

Harvested from:

CDK

Metadata only:

false