Another Chloromyxid Lineage: Molecular Phylogeny and Redescription of Chloromyxum careni from the Asian Horned frog Megophrys nasuta

0358342 - BC 2012 RIV US eng J - Journal Article
Jirků, Miloslav - Bartošová, Pavla - Lӧvy, Alena - Mutschmann, F.
Another Chloromyxid Lineage: Molecular Phylogeny and Redescription of Chloromyxum careni from the Asian Horned frog Megophrys nasuta.
Journal of Eukaryotic Microbiology. Roč. 58, č. 1 (2011), s. 50-59. ISSN 1066-5234. E-ISSN 1550-7408
R&D Projects: GA ČR GAP506/10/2330
Institutional research plan: CEZ:AV0Z60220518
Keywords : Amphibia * Anura * Chloromyxum careni * LSU rDNA * Megophrys nasuta * molecular phylogeny * Myxozoa * redescription * SSU rDNA * ultrastructure
Subject RIV: EG - Zoology
Impact factor: 2.659, year: 2011

Infection with Chloromyxum careni Mutschmann, 1999 was found in the Asian horned frog Megophrys nasuta from Malaysia and Indonesia. Kidney was the only organ infected. Coelozoic plasmodia up to 300 mm were localized in Bowman's space, embracing the glomerulus from all sides, or rarely in lumina of renal tubules. Plasmodia are polysporic, containing disporic pansporoblasts. Myxospores observed by light microscopy are colorless, variable in shape and size, composed of two symmetrical valves joined by a meridian suture, containing four pyriform polar capsules 3.0-4.0 x 2.5-3.0 micro m and a single sporoplasm. Each valve possesses 14-24 (median 21) fine longitudinal ridges clearly visible only in scanning electron microscopy. Rarely, atypical spores with a markedly pointed posterior pole and only 6-10 surface ridges are present in plasmodia together with typical spores. Both small subunit (SSU) and large subunit (LSU) rRNA gene sequences possess extremely long GU-rich inserts.
Permanent Link: http://hdl.handle.net/11104/0196418