Fish microsporidia: Fine structural diversity and phylogeny

International Journal for Parasitology

Volumn 33, Issue 2, 2003, Pages 107-127

  Lom, Jiří ^a   Nilsen, Frank ^b  

^a INSTITUTE OF PARASITOLOGY   (Czech Republic)

^b INSTITUTE OF MARINE RESEARCH   (Norway)

Author keywords

Developmental cycle; Fish infecting microsporidia; Phylogeny; Small subunit rDNA analysis; Tentative classification; Ultrastructure; Xenomas

Indexed keywords

RIBOSOME DNA;

PARASITOLOGY; PHYLOGENY;

CELL DEATH; CELL ENCAPSULATION; CELL MEMBRANE; CELL ORGANELLE; CELL SURFACE; CELL WALL; CLADISTICS; CRUSTACEA; CYTOPLASM; DATA ANALYSIS; ENTEROCYTOZOON; FISH DISEASE; HOST CELL; HOST PARASITE INTERACTION; HYPERTROPHY; LIFE CYCLE; MICROSPORIDA; MICROSPORUM; MOLECULAR PHYLOGENY; NONHUMAN; PLEISTOPHORA; REVIEW; SPOROGENESIS;

CRUSTACEA; ENTEROCYTOZOON; ENTEROCYTOZOONIDAE; GLUGEA; GLUGEIDAE; HETEROSPORIS; ICHTHYOSPORIDIUM; KABATANA; LOMA; LOMA ACERINAE; MAMMALIA; MICROGEMMA; MICROSPORIDIA; MICROSPORIDIUM; MICROSPORIDIUM SERIOLAE; MYXOSPOREA; NUCLEOSPORA; OVIPLEISTOPHORA; PLEISTOPHORA; PLEISTOPHORIDAE; PSEUDOLOMA; SPRAGUEA; TETRAMICRA; TRACHIPLEISTOPHORA; TUZETIA; TUZETIA WEIDNERI; VAVRAIA;

EID: 0037292298     PISSN: 00207519     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0020-7519(02)00252-7     Document Type: Review

References (112)

1. Avery S.W., Undeen A.H. Horizontal transmission of Parathelohania anophelis to the copepod, Microcyclops varicans, and the mosquito, Anopheles quadrimaculatus. J. Invertebr. Pathol. 56:1990;98-105.
2. Baker M.D., Vossbrinck C.R., Didier E.S., Maddox J.V., Shadduck J.A. Small subunit ribosomal DNA phylogeny of various microsporidia with emphasis on AIDS-related forms. J. Eukaryot. Microbiol. 42:1995;564-570.
3. Baker M.D., Vossbrinck C.R., Becnel J.J., Andreadis T.G. Phylogeny of Amblyospora (Microsporida: Amblyosporidae) and related genera based on small subunit ribosomal DNA data: A possible example of host parasite cospeciation. J. Invertebr. Pathol. 71:1998;199-206.
4. Barlough J.E., McDowell T.S., Bigornia L., Slemenda S.B., Pieniazek N.J., Hedrick R.P. Nested polymerase chain reaction for detection of Enterocytozoon salmonis genomic DNA in chinook salmon Oncorhynchus tschawytscha. Dis. Aquat. Org. 29:1995;17-23.
5. Baxa-Antonio D., Groff J.M., Hedrick R.P. Experimental horizontal transmission of Enterocytozoon salmonis to Chinook salmon, Oncorhynchus tschawytscha. J. Protozool. 39:1992;699-702.
6. Becnel J.J. Horizontal transmission and subsequent development of Amblyospora californica (Microsporidia/ Amblyosporidae) in the intermediate and definitive host. Dis. Aquat. Org. 13:1992;17-28.
7. Becnel J. Life-cycles and host-parasite relationships of microsporidia in culicine mosquitoes. Folia Parasitol. 41:1994;91-96.
8. Bekhti M. Contribution à l'étude des microsporidioses parasites des poissons des côtes méditérannéens: les genres Loma et Glugea, biologie et relations hôte-parasite. Thesis. 1984;Univ. Sci. Tech. Languedoc, Montpellier.
9. Bekhti M., Bouix G. Sur l'évolution des xénomes et le double role des polynucléaires neutrophiles dans la microsporidiose à Glugea stephani (Hagenmüller, 1899) chez le flet Platichthys flesus (Linn, 1785). Ann. Paras. Hum. Comp. 60:1985;509-522.
10. Bell A.S., Yokoyama H., Aoki T., Takahashi M., Maruyama K. Single and nested polymerase chain reaction assays for the detection of Microsporidium seriolae (Microspora), the causative agent of 'Beko' disease in yellowtail Seriola quinqueradiata. Dis. Aquat. Org. 37:1999;127-134.
11. Bell A.S., Aoki T., Yokoyama H. Phylogenetic relationships among microsporidia based on rDNA sequence data, with particular reference to fish-infecting Microsporidium Balbiani, 1884 species. J. Eukaryot. Microbiol. 48:2001;258-265.
12. Berrebi P. Etude ultrastructurale de Glugea atherinae n.sp., microsporidie de l'athérine, Atherina boyeri Risso, 1810 (Poisson, Téléostéen) dans les lagunes du Languedoc et de Provence. Z. Parasitenk. 60:1979;105-122.
13. Cali A., Takvorian P.M. Developmental morphology and life cycles of the Microsporidia. Wittner M., Weiss L.M. The Microsporidia and Microsporidiosis. 1999;85-128 American Society for Microbiology Press, Washington DC.
14. Canning E.U. Phylum Microspora. Margulis L., Corliss J.O., Melkonian M., Chapman D.J. Handbook of Protoctista. 1990;53-72 Jones and Bartlett, Boston, MA.
15. Canning E.U., Hazard E.I. Genus Pleistophora Gurley, 1893, an assemblage of at least three genera. J. Protozool. 29:1982;39-49.
16. Canning E.U., Lom J. The Microsporidia of Vertebrates. 1986;Academic Press, London.
17. Canning E.U., Nicholas J.P. Genus Pleistophora (Phylum Microspora): redescription of the type species, Pleistophora typicalis Gurley, 1893 and ultrastructural characterisation of the genus. J. Fish Dis. 3:1980;317-338.
18. Canning E.U., Hazard E.I., Nicholas J.P. Light and electron microscopy of Pleistophora sp. from skeletal muscle of Blennius pholis. Protistologica. 15:1979;317-332.
19. Canning E.U., Lom J., Nicholas J.P. Genus Glugea Thélohan, 1891 (Phylum Microspora): redescription of the type species Glugea anomala (Moniez, 1887) and recognition of its sporogonic development within sporophorous vesicles (pansporoblastic membranes). Protistologica. 18:1982;193-210.
20. Canning E.U., Curry A., Overstreet R.M. Ultrastructure of Tuzetia weidneri sp. n. (Microsporidia: Tuzetiidae) in skeletal muscle of Litopenaeus setiferus and Farfantepenaeus aztecus (Crustacea: Decapoda) and new data on Perezia nelsoni (Microsporidia: Pereziidae) in L. setiferus. Acta Protozool. 41:2002;63-77.
21. Cavalier-Smith T. Kingdom Protozoa and its 18 phyla. Microbiol. Rev. 57:1993;953-994.
22. Cavalier-Smith T. A revised six-kingdom system of life. Biol. Rev. 73:1998;203-266.
23. Cépède C. Mrazekia piscicola n.sp. microsporidie parasite du Merlan (Gadus merlangus). Bull. Soc. Zool. France. 49:1924;109-113.
24. Chatton E., Courier R. Formation d'un complexe xénoparasitaire géant avec bordure en brosse, sous l'influence d'une microsporidie, dans le testicule de Cottus bubalis. C.R. Soc. Biol. Paris. 89:1923;579-583.
25. Cheney S.A., Lafranchi-Tristem N.J., Canning E.U. Phylogenetic relationships of Pleistophora-like microsporidia based on small subunit ribosomal DNA sequences and implications for the source of Trachipleistophora hominis infections. J. Eukaryot. Microbiol. 47:2000;280-287.
26. Cheney S.A., Lafranchi-Tristem N.J., Bourges D., Canning E.U. Relationships of microsporidian genera, with emphasis on the polysporous genera, revealed by sequences of the largest subunit of RNA polymerase II (RPB1). J. Eukaryot. Microbiol. 48:2001;111-117.
27. Chilmonczyk S., Cox W.T., Hedrick R.P. Enterocytozoon salmonis n.sp.: an intranuclear microsporidian from salmonid fish. J. Protozool. 38:1991;264-269.
28. Coste F., Bouix G. Heterosporis cichlidarum n.sp. (Microspora), a parasite of the ornamental cichlid fish Hemichromis bimaculatus Gill, 1862. Bull. Eur. Assoc. Fish Pathol. 18:1998;157-161.
29. Desportes-Livage I., Chilmonczyk S., Hedrick R., Ombrouck C., Monge D., Maiga I., Gentilini M. Comparative development of two microsporidian species: Enterocytozoon bieneusi and Enterocytozoon salmonis, reported from AIDS patients and salmonid fish, respectively. J. Eukaryot. Microbiol. 49:1996;49-60.
30. Docker M.F., Kent M.L., Hervio D.M.L., Khattra J.S., Weiss L.M., Cali A., Devlin R.H. Ribosomal DNA sequence of Nucleospora salmonis Hedrick, Groff and Baxa, 1991 (Microsporea: Enterocytozoonidae): implications for phylogeny and nomenclature. J. Eukaryot. Microbiol. 44:1996;55-60.
31. Docker M.F., Devlin R.H., Richard J., Khattra J., Kent M.L. Sensitive and specific polymerase chain reaction assay for detection of Loma salmonae (Microsporea). Dis. Aquat. Org. 29:1997;41-48.
32. Eckert J., Kutzer E., Rommel M., Bürger H.-J., Körting W. Veterinärmedizinische Parasitologie. 1992;Paul Parey, Hamburg.
33. Faye A. Microsporidies des poissons des côtes sénégalaises: faunistique, biologie, ultrastructure. Thesis. 1992;University of Montpellier II, Montpellier.
34. Faye A., Toguebaye B.S., Bouix G. Ultrastructure and development of Pleistophora senegalensis sp. nov. from the gilt-head sea bream, Sparus aurata L. (Teleost, Sparidae) from the coast of Senegal. J. Fish Dis. 3:1990;179-192.
35. Faye N., Toguebaye B.S., Bouix G. Microfilum lutjani n.g. n.sp. (Protozoa Microsporida), a gill parasite of the golden African snapper Lutjanus fulgens (Valenciennes, 1830) (Teleostei, Lutjanidae): developmental cycle and ultrastructure. J. Protozool. 38:1991;30-40.
36. Faye N., Toguebaye B.S., Bouix G. Nosemoides syacii n. sp., a microsporidian parasite of the West African turbot Syacium micrurum Ranzani, 1840. Syst. Parasitol. 29:1994;43-50.
37. Faye A., Toguebaye B.S., Bouix G. On the cytology and development of Loma boopsi sp. n. (Microspora/ Glugeidae) parasite of Boops boops (Pisces, Teleostei, Sparidae) from the coasts of Senegal. Arch. Protistenkd. 146:1995;85-93.
38. Faye N., Toguebaye S., Bouix G. Ultrastructure and development of Neonosemoides tilapiae (Sakiti and Bouix, 1987) n. g., n. comb. (Protozoa, Microspora) from African cichlid fish. Eur. J. Protistol. 32:1996;320-326.
39. Figueras A., Novoa B., Santarem M., Martinez E., Alvarez J.M., Toranzo A.E., Dyková I. Tetramicra brevifilum, a potential threat to farmed turbot Scophthalmus maximus. Dis. Aquat. Org. 14:1992;127-135.
40. Fomena A., Coste F., Bouix G. Loma camerounensis sp. nov. (Protozoa: Microsporida) a parasite of Oreochromis niloticus Linnaeus, 1757 (Teleostei, Cichlidae) in fish-rearing ponds in Melen, Yaoundé, Cameroon. Parasitol. Res. 78:1992;201-208.
41. Germot A., Philippe H., Le Guyader H. Evidence for loss of mitochondria in Microsporidia from a mitochondrial-type HSP70 in Nosema locustae. Mol. Biochem. Parasitol. 87:1997;159-168.
42. Gresoviac S.J., Khattra J.S., Nadler S.A., Kent M.L., Devlin R.H., Vivarès C.P., DeLaFuente E., Hedrick R.P. Comparison of small subunit ribosomal RNA gene and internal transcribed spacer sequences among isolates of the intranuclear microsporidian Nucleospora salmonis. J. Eukaryot. Microbiol. 47:2000;379-387.
43. Hirt R.P., Healy B., Vossbrinck C.R., Canning E.U., Embley T.M. Identification of a mitochondrial HSP70 homologue in Vairimorpha necatrix: molecular evidence that microsporidia once contained mitochondria. Curr. Biol. 7:1997;1-4.
44. Hirt R.P., Logsdon J.M., Healy B., Dorey M.W., Doolittle W.F., Embley T.M. Microsporidia are related to fungi: evidence from the largest subunit of RNA polymerase II and other proteins. Proc. Nat. Acad. Sci. USA. 96:1999;580-585.
45. Issi I.V. Microsporidia as a phylum of parasitic protozoa. 136 Beyer T.V., Issi I.V. 136 Protozoology. Vol. 10:1986;6-136 Nauka, Leningrad.
46. Karlsbakk E., Askeland J., Plarre H. Microsporidian infections in two Norwegian wrasse species (Labridae), Symphodus melops (L.) and Labrus bergylta Ascanus. 10th International Conference of the EAFP, Trinity College, Dublin, 9-14 September. 2001.
47. Katinka M.D., Duprat S., Cornillot E., Metenier G., Thomarat F., Prensier G., Barbe V., Peyretaillade E., Brottier P., Wincker P., Delbac F., El Alaoui H., Peyret P., Saurin W., Gouy M., Weissenbach J., Vivarès C.P. Genome sequence and gene compaction of the eukaryote parasite Encephalitozoon cuniculi. Nature. 414:2001;450-453.
48. Kent M.L., Docker M., Khattra J., Vossbrinck C.R., Speare D.J., Devlin R.H. A new Microsporidium sp. (Microsporidia) from the musculature of the mountain whitefish Prosopium williamsoni from British Columbia: morphology and phylogeny. J. Parasitol. 85:1999;1114-1119.
49. Larsson J.I.R. Ultrastructure, function and classification of microsporidia. Corliss J.O., Patterson D.J. Progress in Protistology. Vol. 1:1986;325-390 Biopress, Bristol.
50. Larsson J.I.R. Identification of Microsporidia. Acta Protozool. 38:1999;161-197.
51. Leiro J., Ortega M., Iglesias R., Estevez J., Sanmartin M.L. Pleistophora finisterrensis n. sp., a microsporidian parasite of blue whiting Micromesistius poutassou. Syst. Parasitol. 34:1996;163-170.
52. Leiro J., Paramá A., Ortega M., Santamarina M.T., Sanmartin M.L. Redescription of Glugea caulleryi, a microsporidian parasite of the greater sand-eel, Hyperoplus lanceolatus (Le Sauvage), (Teleostei: Ammodytidae), as Microgemma caulleryi comb. nov. J. Fish Dis. 2:1999;101-110.
53. Lom J., Corliss J.O.C. Ultrastructural observations on the development of the microsporidian protozoon Plistophora hyphessobryconis Schäperclaus. J. Protozool. 14:1967;141-152.
54. Lom J., Dyková I. Ultrastructure of Nucleospora secunda n.sp. (Microsporidia), parasite of enterocytes of Nothobranchius rubripinnis. Eur. J. Protistol. 38:2002;19-27.
55. Lom J., Pekkarinen M. Ultrastructural observations on Loma acerinae (Jírovec, 1930) comb. nov. (Phylum Microsporidia). Acta Protozool. 38:1999;61-74.
56. Lom J., Weiser J. Surface pattern of some microsporidian spores as seen in the scanning electron microscope. Folia Parasitol. 19:1972;359-363.
57. Lom J., Dyková I., Körting W., Klinger H. Heterosporis schuberti n. sp., a new microsporidian parasite of auqarium fish. Eur. J. Protistol. 25:1989;129-135.
58. Lom J., Noga E.J., Dyková I. Occurrence of a microsporean with characteristics of Glugea anomala in ornamental fish of the family Cyprinodontidae. Dis. Aquat. Org. 95:1995;239-242.
59. Lom J., Dyková I., Tonguthai K. Kabataia gen. n., a new genus proposed for Microsporidium spp. infecting trunk muscles of fishes. Dis. Aquat. Org. 38:1999;39-46.
60. Lom J., Dyková I., Tonguthai K. Kabatana gen.n., new name for the microsporidian genus Kabataia Lom, Dyková et Tonguthai, 1999. Folia Parasitol. 47:2000;78.
61. Lom J., Dyková I., Wang C.H., Lo C.F., Kou G.H. Ultrastructural justification of the transfer of Pleistophora angillarum Hoshina, 1959 to the genus Heterosporis Schubert, 1969. Dis. Aquat. Org. 43:2000;225-231.
62. Lom J., Nilsen F., Dyková I. Thelohania contejeani Henneguy, 1892: dimorphic life cycle and taxonomic affinities, as indicated by ultrastructural and molecular study. Parasitol. Res. 87:2001;860-872.
63. Loubès C. Ultrastructure, sexualité, dimorphisme sporogonique des microsporidies (Protozoaires). Thesis. 1979;Univ. Sci. Tech. Languedoc, Montpellier.
64. Loubès C., Maurand J., Ormières R. Étude ultrastructurale de Spraguea lophii (Doflein, 1989) microsporidie parasite de la Baudroie: essai d'interpretation du dimorphism sporal. Protistologica. 15:1979;43-54.
65. Loubès C., Maurand J., Gasc C., de Buron I., Barral J. Étude ultrastructurale de Loma dimorpha n. sp., microsporidie parasite de poissons Gobiidae languedociens. Protistologica. 20:1984;579-589.
66. Maíllo P.A., Amigó J.M., Baena R., Salvadó H., Gracia M.P. Tetramicra brevifilum (Matthews and Matthews, 1980) (Microsporida: Tetramicridae) in a new fish host, Lophius budegassa (Spinola, 1807) in Spain. Parasitol. Res. 84:1998;208-212.
67. Matthews R.A., Matthews B.F. Cell and tissue reactions of turbot Scophthalmus maximus (L.) to Tetramicra brevifilum gen.n., sp.n. (Microspora). J. Fish Dis. 3:1980;495-515.
68. Matthews J.L., Brown A.M.V., Larison K., Bishop-Stewart J.K., Rogers P., Kent M.L. Pseudoloma neurophilia n. g., n. sp., a new microsporidium from the central nervous system of the zebrafish (Danio rerio). J. Eukaryot. Microbiol. 48:2001;227-233.
69. Mehlhorn H., Hartley W.J., Heydorn A.O. A comparative ultrastructural study of the cyst wall of 13 Sarcocystis species. Protistologica. 12:1976;451-467.
70. McVicar A.H. Infection of plaice Pleuronectes platessa L. with Glugea (Nosema) stephani (Hagenmüller, 1899) (Protozoa: Microsporidia) in a fishfarm and under experimental conditions. J. Fish Biol. 7:1975;611-619.
71. Micieli M.V., Garcia J.J., Becnel J.J. Life cycle and description of Amblyospora camposi n. sp. (Microsporidia: Amblyosporidae) in the mosquito Culex renatoi (Diptera, Culicidae) and the copepod Paracyclops fimbriatus fimbriatus (Copepoda, Cyclopidae). J. Eukaryot. Microbiol. 47:2000;575-580.
72. Morrison C.M., Hoffman G.L., Sprague V., et al. Glugea pimephales (Fantham, 1941) n. comb. (Microsporidia, Glugeidae) in the fathead minnow Pimephales promelas. Can. J. Zool. 63:1985;380-391.
73. Morrison C.M., Sprague V. Electron microscope study of a new genus and new species of microsporidia in the gill of Atlantic cod Gadus morhua L. J. Fish Dis. 4:1981;15-32.
74. Morrison C.M., Sprague V. Light and electron microscopic study of microsporidia in the gill of haddock, Melanogrammus aeglefinus (L.). J. Fish Dis. 4:1981;179-184.
75. Morrison C.M., Sprague V. Loma salmonae (Putz, Hoffman and Dunbar, 1965) in the rainbow trout, Salmo gairdneri Richardson, and L. fontinalis sp. nov. (Microsporidia) in the brook trout, Salvelinus fontinalis (Mitchill). J. Fish Dis. 6:1983;345-394.
76. Morrison C.M., Marryat V., Gray B. Structure of Pleistophora hippoglossoideos Bosanquet in the American plaice Hippoglossoideos platessoides (Fabricius). J. Parasitol. 70:1984;412-421.
77. Moser B.A., Becnel J.J., Maruniak J., Patterson R.S. Analysis of the ribosomal DNA sequences of the microsporidia Thelohania and Vairimorpha of fire ants. J. Invertebr. Pathol. 72:1998;154-159.
78. Mrázek A. Sporozoenstudien II. Glugea lophii Doflein. Sitzungsber. Böhm. Ges. Wiss. Math.-Naturwiss. Classe. 1899;1-8.
79. Nilsen F. Microsporidian phylogeny - A molecular approach. Dr. scient. thesis. 1998;University of Bergen, Bergen.
80. Nilsen F. Small subunit ribosomal DNA phylogeny of microsporidia with particular reference to genera that infect fish. J. Parasitol. 86:2000;128-133.
81. Nilsen F., Chen W.J. rDNA phylogeny of Intrapredatorus barri (Microsporida: Amblyosporidae) parasitic to Culex fuscanus Wiedemann (Diptera: Culicidae). Parasitology. 122:2001;617-623.
82. Nilsen F., Ness A., Nylund A. Observations on an intranuclear microsporidian in lymphoblasts from farmed Atlantic halibut larvae (Hippoglossus hippoglossus L.). J. Eukaryot. Microbiol. 42:1995;131-135.
83. Nilsen F., Endresen C., Hordvick I. Molecular phylogeny of microsporidians with particular reference to species that infect the muscles of fish. J. Eukaryot. Microbiol. 45:1998;535-543.
84. Olson R.E. Laboratory and field studies on Glugea stephani (Hagenmüller), a microsporidan parasite of pleuronectid flatfishes. J. Protozool. 23:1976;158-164.
85. Pekkarinen M. Ultrastructure of the wall of the sporophorous vesicle during sporogony of Pleistophora mirandellae (Protozoa: Microspora). Parasitol. Res. 82:1996;740-742.
86. Pekkarinen M., Lom J. Early xenomas of Loma acerinae (Microspora) raised experimentally in intestines of Gymnocephalus cernuus. Proceedings of the 5th International Symposium on Fish Parasites, Institute of Parasitology, ASCR, 9-13 August, České Budějovice, Czech Republic. 1999.
87. Pekkarinen M., Lom J., Nilsen F. Ovipleistophora gen. n., a new genus for Pleistophora mirandellae-like microsporidia. Dis. Aquat. Org. 48:2002;133-142.
88. Peyretaillade E., Biderre C., Peyret P., Duffieux F., Metenier G., Gouy M., Michot B., Vivarès C.P. Microsporidian Encephalitozoon cuniculi, a unicellular eukaryote with an unusual chromosomal dispersion of ribosomal genes and a LSU rRNA reduced to the universal core. Nucleic Acids Res. 26:1998;3513-3520.
89. Peyretaillade E., Broussolle P., Peyret P., Metenier G., Gouy M., Vivarès C.P. Microsporidia, amitochondrial protists, possess a 70-kDa heat shock protein gene of mitochondrial evolutionary origin. Mol. Biochem. Parasitol. 15:1998;683-689.
90. Ralphs J.R., Matthews R.A. Hepatic microsporidiosis due to Microgemma hepaticus n.g., n.sp. in juvenile grey mullet Chelon labrosus. J. Fish Dis. 9:1986;225-242.
91. Schmahl G., Mehlhorn H. Treatment of fish parasites. 6. Effects of sym-triazinone (Toltrazuril) on developmental stages of Glugea anomala Moniez, 1887 (Microsporidia): a light and electron microscopic study. Eur. J. Protistol. 24:1989;252-259.
92. Schubert G. Ultracytologische Untersuchungen an der Spore der Mikrosporidienart, Heterosporis finki gen.n., sp.n. Z. Parasitenk. 32:1969;59-79.
93. Schubert G. Elektronenmikroskopische Untersuchungen zur Sporonten und Sporenentwicklung der Mikrosporidienart Heterosporis finki. Z. Parasitenk. 32:1969;80-92.
94. Shaw R.W., Kent M.L. Fish Microsporidia. Wittner M., Weiss L.M. The Microsporidia and Microsporidiosis. 1999;418-446 American Society of Microbiology, Washington, DC.
95. Shaw R.W., Kent M.L., Docker M.F., Brown A.M.V., Devlin R.H., Adamson M.L. A new species of Loma (Microsporea) in shiner perch (Cymatogaster aggregata). J. Parasitol. 83:1997;296-301.
96. Shaw R.W., Kent M.L., Adamson M.L. Modes of transmission of Loma salmonae (Microsporidia). Dis. Aquat. Org. 33:1998;151-156.
97. Sogin M.L., Silberman J.D. Evolution of the protists and protistan parasites from the perspective of molecular systematics. Int. J. Parasitol. 28:1998;11-20.
98. Sprague V., Vernick S.H. Light and electron microscope study of a new species of Glugea (Microsporida, Nosematidae) in the 4-spined stickleback, Apeltes quadracus. J. Protozool. 15:1968;547-571.
99. Sprague V., Vernick S.H. Fine structure of the cyst and some sporulation stages of Ichthyosporidium (Microsporida). J. Protozool. 21:1974;667-677.
100. Sprague V., Becnel J.J., Hazard E.I. Taxonomy of the phylum Microspora. Crit. Rev. Microbiol. 18:1992;285-395.
101. Swofford D.L. PAUP*. Phylogenetic Analysis Using Parsimony (*and Other Methods). Version 4.0b8. 2000;Sinauer Associates, Sunderland, MA.
102. Takvorian P.M., Cali A. Appendages associated with Glugea stephani, a microsporidian found in flounder. J. Protozool. 30:1983;251-256.
103. Takvorian P.M., Cali A. The ultrastructure of spores (Protozoa: Microsporida) from Lophius americanus, the angler fish. J. Protozool. 33:1986;570-575.
104. Toguebaye B.S., Marchand B., Faye A. Preliminary observations on a microsporidian parasite of Chloroscombrus chrysurus Linnaeus, 1776 (teleost fish). Ann. Parasitol. Hum. Comp. 64:1989;157-160.
105. Van de Peer Y., Baldauf S.L., Doolittle W.F., Meyer A. An updated and comprehensive rRNA phylogeny of (crown) eukaryotes based on rate calibrated evolutionary distances. J. Mol. Evol. 51:2000;565-576.
106. Van de Peer Y., BenAli A., Meyer A. Microsporidia: accumulating molecular evidence that a group of amitochondriate and suspectedly primitive eukaryotes are just curious fungi. Gene. 246:2000;1-8.
107. Vinckier D. Nosemoides gen.n., N. vivieri (Vinckier, Devauchelle and Prensier, 1970) comb. nov (Microsporidie): étude de la differenciation sporoblastique et génèse des différentes structures de la spore. J. Protozool. 22:1975;170-184.
108. Vossbrinck C.R., Maddox J.V., Friedman S., Debrunner-Vossbrinck B.A., Woese C.R. Ribosomal RNA sequence suggests microsporidia are extremely ancient Eukaryotes. Nature. 326:1987;411-414.
109. Weidner E. Ultrastructure of the peripheral zone of a Glugea-induced xenoma. J. Protozool. 23:1976;234-238.
110. Weiss L.M. Microsporidia: emerging pathogenic protists. Acta Trop. 78:2001;89-102.
111. Weissenberg R. Intracellular development of the microsporidian Glugea anomala Moniez in hypertrophying migratory cells of the fish Gasterosteus aculeatus L., an example of the formation of 'xenoma tumours'. J. Protozool. 15:1968;44-57.
112. Woese C.R. Bacterial evolution. Microbiol. Rev. 51:1987;221-271.