Abstract:
:This study increases the known biodiversity of cnidarian parasites in neotropical bryconid fishes. Two novel Myxobolus species are described based on morphology, ultrastructure and small subunit ribosomal DNA (ssrDNA) sequencing: Myxobolus vetuschicanus n. sp. infecting fins of Salminus franciscanus and Myxobolus mineirus n. sp. infecting the mesentery of Brycon orthotaenia from the São Francisco River basin, Minas Gerais State, Brazil. Ultrastructural analysis of the two species revealed an asynchronous sporogenesis process, with germinative cells and young developmental stages of myxospores in the periphery of the plasmodia. In M. vetuschicanus n. sp., the plasmodia were surrounded by a layer of fibroblasts and in M. mineirus n. sp., the plasmodial membrane had direct contact with the host tissue. The phylogenetic analysis based on the ssrDNA of Henneguya/Myxobolus species showed that the two novel Myxobolus species grouped in subclades together with other parasite species of bryconid fishes.
journal_name
Parasitol Resjournal_title
Parasitology researchauthors
Naldoni J,Carriero MM,Moreira GSA,da Silva MRM,Maia AAM,Adriano EAdoi
10.1007/s00436-020-06863-5subject
Has Abstractpub_date
2020-11-01 00:00:00pages
3627-3637issue
11eissn
0932-0113issn
1432-1955pii
10.1007/s00436-020-06863-5journal_volume
119pub_type
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