Systemic infection by Spencermartinsiella sp. in a Nile crocodile (Crocodylus niloticus)

  • Tatiane Furtado de Carvalho Universidade Federal de Minas Gerais, Escola de Veterinária
  • Herlandes Penha Tinoco Fundação Zoo-Botânica de Belo Horizonte, Departamento de Jardim Zoológico
  • Marcelo Cordeiro Campos Malta Fundação Zoo-Botânica de Belo Horizonte, Departamento de Jardim Zoológico
  • Angela Tinoco Pessanha Fundação Zoo-Botânica de Belo Horizonte, Departamento de Jardim Zoológico
  • Thelma Tirone Silvério Matos Universidade Federal de Minas Gerais, Instituto de Ciências Biológicas
  • Cláudia Emanuela Rocha Universidade Federal de Minas Gerais, Instituto de Ciências Biológicas
  • Priscilla Parreira Rocha Gomes Universidade Federal de Minas Gerais, Escola de Veterinária
  • Luize Néli Nunes Garcia Universidade Federal de Minas Gerais, Escola de Veterinária
  • Daniella Noronha Frois Universidade Federal de Minas Gerais, Escola de Veterinária
  • Marianna de Paula Martins Pereira Universidade Federal de Minas Gerais, Escola de Veterinária
  • Susana Johann Universidade Federal de Minas Gerais, Instituto de Ciências Biológicas
  • Carlos Augusto Rosa Universidade Federal de Minas Gerais, Instituto de Ciências Biológicas
  • Tatiane Alves da Paixão Universidade Federal de Minas Gerais, Instituto de Ciências Biológicas
  • Renato Lima Santos Universidade Federal de Minas Gerais, Escola de Veterinária
Keywords: Crocodile, Crocodylus niloticus, Candidiasis, Spencermartinsiella sp

Abstract

A male adult crocodile (Crocodylus niloticus) was diagnosed with systemic yeast infection. Histologically, there were extensive areas of necrosis in the lung, which were associated with a diffuse severe lympho-plasmo-histiocytic inflammatory infiltrate, with numerous multinucleated giant cells, and myriads of intralesional pseudo-hyphae and yeast like organisms within distended foveolae. Necrotic foci were also observed in the mucosa of the digestive tract, trachea, tunica intima of arteries, liver, and heart, with a marked inflammatory lympho-histiocytic infiltrate, with large numbers of epithelioid macrophages and giant cells, and intralesional and intravascular pseudo-hyphae and yeast-like organisms. Oval yeast structures with 4 to 6 μm in diameter and 5 to 8 μm thick paralleled-wall pseudo-hyphae were observed in PAS or GMS stained sections. PCR with DNA template extracted from paraffin embedded tissues amplified the D1/D2 domains of the large subunit rRNA gene, which was sequenced and found to be identical to sequences of a new species, isolated from rotting wood in Brazil, of the genus Spencermartinsiella, which its closest relative is Spencermartinsiella cellulosicola

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Published
2017-01-04
How to Cite
Carvalho, T., Tinoco, H., Malta, M., Pessanha, A., Matos, T., Rocha, C., Gomes, P., Garcia, L., Frois, D., Pereira, M., Johann, S., Rosa, C., Paixão, T., & Santos, R. (2017). Systemic infection by Spencermartinsiella sp. in a Nile crocodile (Crocodylus niloticus). Brazilian Journal of Veterinary Research and Animal Science, 53(3), 1-7. https://doi.org/10.11606/issn.1678-4456.bjvras.2016.109058