Volume 17, Number 9—September 2011
Dispatch
Tubulinosema sp. Microsporidian Myositis in Immunosuppressed Patient
Maria M. Choudhary
, Maureen G. Metcalfe, Kathryn Arrambide, Caryn Bern, Govinda S. Visvesvara, Norman J. Pieniazek, Rebecca D. Bandea, Marlene DeLeon-Carnes, Patricia Adem, Moaz M. Choudhary, Sherif R. Zaki, and Musab U. Saeed
, Maureen G. Metcalfe, Kathryn Arrambide, Caryn Bern, Govinda S. Visvesvara, Norman J. Pieniazek, Rebecca D. Bandea, Marlene DeLeon-Carnes, Patricia Adem, Moaz M. Choudhary, Sherif R. Zaki, and Musab U. SaeedTable
Comparison of various Tubulinosema spp. with organism isolated from a 67-year old woman in 2009*
| Characteristics | Tu. ratisbonensis | Tu. kingi | Tu. acridophagus | 2009 isolate |
|---|---|---|---|---|
| First described | 2005 | 1962 | 1967 | NA |
| Previously named | NA | Nosema kingi | Visvesvaria acridophagus, Nosema acridophagus | NA |
| Host in which identified | Drosophila melanogaster fruit fly (Diptera) | D. willistoni fruit fly | Schistocerca Americana grasshopper (Orthoptera) | Human (skeletal muscle) |
| Known human infections | None | None | None | None |
| Microtubules on plasma lemma | Present | Present | Present | Not seen |
| Spore shape | Pear shaped | Oval | Oval | Round-to-pear shaped |
| Meronts nuclei | 1, 2, or 4 | 1, 2, or 4 | 1, 2, or 4 | Meronts not seen |
| Sporonts nuclei | 2–4 | 2–4 | 2–4 | Sporonts not seen |
| Polar tube | 9–14 | 13 | 10–12 | 11 |
| Coils/rows | Single | Single/ double (anterior) | Single | Single |
| Polar filament arrangement | Anisofilar | Isofilar | Isofilar | Anisofilar |
*NA, not applicable.
