Ultrastructure of Myxidium trachinorum sp. nov. from the gallbladder of the lesser weever fish Echiichthys vipera
Myxidium trachinorum sp. nov. is described from the gallbladder of the lesser weever fish Echiichthys vipera. Pseudoplasmodia attach themselves to the gallbladder epithelium by filose processes, which are inserted between host cells. Pseudoplasmodia undergo endogenous cell formation at the secondary...
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| Veröffentlicht in: | Parasitology research (1987) 1999-11, Vol.85 (11), p.910-919 |
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| container_title | Parasitology research (1987) |
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| creator | CANNING, E. U CURRY, A ANDERSON, C. L OKAMURA, B |
| description | Myxidium trachinorum sp. nov. is described from the gallbladder of the lesser weever fish Echiichthys vipera. Pseudoplasmodia attach themselves to the gallbladder epithelium by filose processes, which are inserted between host cells. Pseudoplasmodia undergo endogenous cell formation at the secondary and tertiary levels. In the proliferative cycle, primary and endogenous cells are packed with digestive vacuoles formed by phagocytosis. In the sporogonic cycle the pseudoplasmodium becomes a pericyte enclosing two secondary cells (lacking digestive vacuoles) in a vacuole. These give rise to five cells each two valvogenic, two capsulogenic and a binucleate sporoplasm, which mature into spores. Comparison of the disporic M. trachinorum with polysporic species of Myxidium revealed significant differences in plasmodial ultrastructure, especially their attachments to host cells, surface characteristics and mode of nutrition, and in formation of generative cells. These suggest that the genus Myxidium may require revision. |
| doi_str_mv | 10.1007/s004360050657 |
| format | Article |
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Comparison of the disporic M. trachinorum with polysporic species of Myxidium revealed significant differences in plasmodial ultrastructure, especially their attachments to host cells, surface characteristics and mode of nutrition, and in formation of generative cells. These suggest that the genus Myxidium may require revision.</description><identifier>ISSN: 0932-0113</identifier><identifier>EISSN: 1432-1955</identifier><identifier>DOI: 10.1007/s004360050657</identifier><identifier>PMID: 10540952</identifier><identifier>CODEN: PARREZ</identifier><language>eng</language><publisher>Berlin: Springer</publisher><subject>Animals ; Biological and medical sciences ; Eukaryota - classification ; Eukaryota - ultrastructure ; Fish Diseases - parasitology ; Fishes - parasitology ; Fundamental and applied biological sciences. 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L</creatorcontrib><creatorcontrib>OKAMURA, B</creatorcontrib><title>Ultrastructure of Myxidium trachinorum sp. nov. from the gallbladder of the lesser weever fish Echiichthys vipera</title><title>Parasitology research (1987)</title><addtitle>Parasitol Res</addtitle><description>Myxidium trachinorum sp. nov. is described from the gallbladder of the lesser weever fish Echiichthys vipera. Pseudoplasmodia attach themselves to the gallbladder epithelium by filose processes, which are inserted between host cells. Pseudoplasmodia undergo endogenous cell formation at the secondary and tertiary levels. In the proliferative cycle, primary and endogenous cells are packed with digestive vacuoles formed by phagocytosis. In the sporogonic cycle the pseudoplasmodium becomes a pericyte enclosing two secondary cells (lacking digestive vacuoles) in a vacuole. These give rise to five cells each two valvogenic, two capsulogenic and a binucleate sporoplasm, which mature into spores. Comparison of the disporic M. trachinorum with polysporic species of Myxidium revealed significant differences in plasmodial ultrastructure, especially their attachments to host cells, surface characteristics and mode of nutrition, and in formation of generative cells. These suggest that the genus Myxidium may require revision.</description><subject>Animals</subject><subject>Biological and medical sciences</subject><subject>Eukaryota - classification</subject><subject>Eukaryota - ultrastructure</subject><subject>Fish Diseases - parasitology</subject><subject>Fishes - parasitology</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Gallbladder - parasitology</subject><subject>Gallbladder Diseases - parasitology</subject><subject>Gallbladder Diseases - veterinary</subject><subject>Microscopy, Electron</subject><subject>Protozoa</subject><subject>Protozoan Infections, Animal - parasitology</subject><subject>Systematics. Geographical distribution. 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L ; OKAMURA, B</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c318t-98a5fa03d0717c537333484517dc6e95f397954f00c9749bc2cfd5cb281f23a63</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1999</creationdate><topic>Animals</topic><topic>Biological and medical sciences</topic><topic>Eukaryota - classification</topic><topic>Eukaryota - ultrastructure</topic><topic>Fish Diseases - parasitology</topic><topic>Fishes - parasitology</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Gallbladder - parasitology</topic><topic>Gallbladder Diseases - parasitology</topic><topic>Gallbladder Diseases - veterinary</topic><topic>Microscopy, Electron</topic><topic>Protozoa</topic><topic>Protozoan Infections, Animal - parasitology</topic><topic>Systematics. Geographical distribution. Morphology. Cytology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>CANNING, E. U</creatorcontrib><creatorcontrib>CURRY, A</creatorcontrib><creatorcontrib>ANDERSON, C. L</creatorcontrib><creatorcontrib>OKAMURA, B</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Parasitology research (1987)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>CANNING, E. U</au><au>CURRY, A</au><au>ANDERSON, C. L</au><au>OKAMURA, B</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Ultrastructure of Myxidium trachinorum sp. nov. from the gallbladder of the lesser weever fish Echiichthys vipera</atitle><jtitle>Parasitology research (1987)</jtitle><addtitle>Parasitol Res</addtitle><date>1999-11-01</date><risdate>1999</risdate><volume>85</volume><issue>11</issue><spage>910</spage><epage>919</epage><pages>910-919</pages><issn>0932-0113</issn><eissn>1432-1955</eissn><coden>PARREZ</coden><abstract>Myxidium trachinorum sp. nov. is described from the gallbladder of the lesser weever fish Echiichthys vipera. Pseudoplasmodia attach themselves to the gallbladder epithelium by filose processes, which are inserted between host cells. Pseudoplasmodia undergo endogenous cell formation at the secondary and tertiary levels. In the proliferative cycle, primary and endogenous cells are packed with digestive vacuoles formed by phagocytosis. In the sporogonic cycle the pseudoplasmodium becomes a pericyte enclosing two secondary cells (lacking digestive vacuoles) in a vacuole. These give rise to five cells each two valvogenic, two capsulogenic and a binucleate sporoplasm, which mature into spores. Comparison of the disporic M. trachinorum with polysporic species of Myxidium revealed significant differences in plasmodial ultrastructure, especially their attachments to host cells, surface characteristics and mode of nutrition, and in formation of generative cells. These suggest that the genus Myxidium may require revision.</abstract><cop>Berlin</cop><pub>Springer</pub><pmid>10540952</pmid><doi>10.1007/s004360050657</doi><tpages>10</tpages></addata></record> |
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| subjects | Animals Biological and medical sciences Eukaryota - classification Eukaryota - ultrastructure Fish Diseases - parasitology Fishes - parasitology Fundamental and applied biological sciences. Psychology Gallbladder - parasitology Gallbladder Diseases - parasitology Gallbladder Diseases - veterinary Microscopy, Electron Protozoa Protozoan Infections, Animal - parasitology Systematics. Geographical distribution. Morphology. Cytology |
| title | Ultrastructure of Myxidium trachinorum sp. nov. from the gallbladder of the lesser weever fish Echiichthys vipera |
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