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Molecular Phylogeny of the Sand-dwelling Dinoflagellates Amphidiniopsis hirsuta and A. swedmarkii (Peridiniales, Dinophyceae)

100%

Gómez F., López-Medina L., Moreira D.

Acta Protozoologica

2011

vol. 50

issue 3

Amphidiniopsis is one of the most specious genera of sand-dwelling dinoflagellates. However, its systematic position and the affinities to other genera remain unresolved. We obtained the first SSU rDNA sequences of two species of Amphidiniopsis, A. hirsuta and A. swedmarkii collected from the French coasts of the English Channel. In the corresponding SSU rDNA phylogeny, the sand-dwelling Amphidiniopsis spp., Thecadinium dragescoi, Herdmania litoralis and the planktonic Archaeperidinium (= Protoperidinium) minutum formed a strongly supported clade (100% bootstrap support), with a Scrippsiella-like species occupying a basal position. This clade branched close to families of Peridiniales such as Calciodinellaceae (Scripssiella), Podolampadaceae (Podolampas, Roscoffia), Heterocapsaceae (Heterocapsa) and other peridinioids. The members of the clade of Amphidiniopsis are placed in the family Amphidiniopsidaceae, within the Peridiniales.

First Report of a Case of Prostatitis Due to Acanthamoeba in a Dog

52%

Lorenzo-Morales J., Valladares M., Sancho J., Reyes-Batllé M., Martín-Navarro C. M., López-Arencibia A., González A. C., López-Medina L., Piñero J. E., Martínez-Carretero E., Valladares B.

Acta Protozoologica

2013

vol. 52

issue 4

The first case of prostatitis in a ten year old mixed breed dog due to Acanthamoeba genotype T4 is reported. The dog was suffering from kidney dysfunction and was admitted for exploration of its organs by echography. All organs were in normal conditions with the exception of the prostate which showed signs of inflammation. An ultrasound-guided puncture was thus performed for further cytological and microbiological study. When the obtained fluid was observed under the microscope, Acanthamoeba trophozoites were detected in a high number. No other pathogens were isolated. Both culture and PCR were positive for Acanthamoeba genus and the isolate was later identified as genotype T4. Unfortunately at this stage, the dog’s owner decided to reject any kind of treatment or therapy. To the best of our knowledge, this is the first report of prostatitis in a dog due to Acanthamoeba genus.

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2 Acta Protozoologica

1 2013

1 2011

2 López-Medina L.

1 González A. C.

1 Gómez F.

1 Lorenzo-Morales J.

1 López-Arencibia A.

1 Martín-Navarro C. M.

1 Martínez-Carretero E.

1 Moreira D.

1 Piñero J. E.

1 Reyes-Batllé M.

1 Sancho J.

1 Valladares B.

1 Valladares M.

Search results

Molecular Phylogeny of the Sand-dwelling Dinoflagellates Amphidiniopsis hirsuta and A. swedmarkii (Peridiniales, Dinophyceae)

First Report of a Case of Prostatitis Due to Acanthamoeba in a Dog