Occurrence of two novel actinospore types (Cnidaria: Myxozoa) in fish farms in Mato Grosso do Sul state, Brazil

Autor(es)

Milanin, Tiago ^[1] ; Atkinson, Stephen D. ^[2] ; Silva, Marcia R. M. ^[1] ; Alves, Roberto G. ^[3] ; Tavares, Luiz Eduardo R. ^[4] ; Ribeiro, Amanda M. ^[1] ; Maia, Antonio A. M. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Dept Med Vet, Fac Zootecnia & Engn Alimentos, Rua Duque Caxias Norte 225, BR-13635900 Pirassununga, SP - Brazil

^[2] Oregon State Univ, Dept Microbiol, 226 Nash Hall, Corvallis, OR 97331 - USA

^[3] Univ Fed Juiz de Fora, Inst Ciencias Biol, Campus Univ, BR-36036330 Juiz De Fora, MG - Brazil

^[4] Univ Fed Mato Grosso do Sul, Inst Biociencias, Cidade Univ, BR-79070900 Campo Grande, MS - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Parasitology Research; v. 117, n. 6, p. 1757-1764, JUN 2018.
• Citações Web of Science: 1

Resumo

We investigated the involvement of oligochaetes in the life cycles of fresh water myxozoan parasites in Brazil. In a fish farm in the State of Mato Grosso do Sul, we examined 192 oligochaetes and found that two (1%) released Aurantiactinomyxon type actinospores. We identified infected oligochaetes by morphology: both were Pristina synclites, from family Naididae. This is the first report of the involvement of this species in the life cycle of myxozoans. Small-subunit ribosomal DNA sequences of Aurantiactinomyxon type 1 (1882 nt) and Aurantiactinomyxon type 2 (1900 nt) did not match any previously sequenced myxozoan in the NCBI database, with the highest BLAST search similarities of 83% with Myxobolus batalhensis MF361090 and 93% with Henneguya maculosus KF296344, respectively, and the two aurantiactinomyxons were only 75% similar to each other (over similar to 1900 bases). Phylogenetic analyses showed that Aurantiactinomyxon type 1 had closest affinities with myxozoans from fish hosts in Order Characiformes, and Aurantiactinomyxon type 2 had affinities with myxozoans from fish of Order Siluriformes. (AU)

• Processo FAPESP: 15/18807-3 - Detecção de mixosporídeos em oligoquetas de sistemas de criação de pintado híbrido (Pseudoplatystoma corruscans x Pseudoplatystoma reticulatum) no Estado de Mato Grosso do Sul, Brasil
• Beneficiário: Tiago Milanin
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado