, Volume 47, Issue 2, pp 104-113
Date: 18 Nov 2010

In vitro growth of microsporidia Anncaliia algerae in cell lines from warm water fish

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Anncaliia algerae is an aquatic microsporidium that most commonly infects mosquitoes but can be grown on the rabbit kidney cell line, RK-13. Spores were purified from RK-13 cultures and added to cell lines from warm water fish and from an insect. The cell lines were GFSK-S1 and GFB3C-W1 from goldfish skin and brain respectively, ZEB2J from zebrafish embryos, FHMT-W1 from fathead minnow testis, and Sf9 from ovaries of a fall armyworm moth. All cultures were maintained at 27°C. Infection was judged to have taken place by the appearance of sporonts and/or spores in cells and occurred in all cell lines. Spores were also isolated from ZEB2J cultures and used to successfully infect new cultures of ZEB2J, RK-13 and Sf9. These results suggest that cells of a wide range of vertebrates support A. algerae growth in vitro and fish cells can produce spores infectious to cells of mammals, fish, and insects

Editor: J. Denry Sato