Dinoflagellates Amyloodinium and Ichthyodinium (Dinophyceae), parasites of marine fishes in the South Atlantic Ocean.
Dis Aquat Organ
; 131(1): 29-37, 2018 10 16.
Article
em En
| MEDLINE
| ID: mdl-30324912
ABSTRACT
The morphology and molecular phylogeny of the parasitic dinoflagellates Ichthyodinium chabelardi and Amyloodinium ocellatum was investigated off Brazil (South Atlantic Ocean). This is the first record of Ichthyodinium and the first molecular data of both parasites from the southern hemisphere. I. chabelardi infected the yolk of eggs of wild populations of Argentine anchovy Engraulis anchoita (Engraulidae) and Brazilian sardinella Sardinella brasiliensis (Clupeidae) in different seasons. The small subunit (SSU) rRNA and internal transcribed spacer (ITS) gene sequences were identical and confirmed Ichthyodinium as a host generalist. The new sequences clustered with the type species I. chabelardi from the North Atlantic and environmental sequences from the Pacific Ocean. A second species from the western Pacific remains undescribed. A. ocellatum was isolated from the gills of a cultured cobia Rachycentron canadum after causing mortality. The SSU rRNA gene sequence of the Brazilian isolate was almost identical to those from the northern hemisphere. This suggests a single species with a widespread distribution, although it is uncertain whether the species has a natural pantropical distribution or is the result of artificial distribution due to human-induced fish transport.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Contexto em Saúde:
3_ND
Problema de saúde:
3_zoonosis
Assunto principal:
Doenças Parasitárias em Animais
/
Dinoflagellida
/
Doenças dos Peixes
/
Peixes
Limite:
Animals
Idioma:
En
Revista:
Dis Aquat Organ
Assunto da revista:
BIOLOGIA
/
MEDICINA VETERINARIA
/
MICROBIOLOGIA
Ano de publicação:
2018
Tipo de documento:
Article
País de afiliação:
Espanha