|
Nephromyces
''Nephromyces'' is a genus of apicomplexans that are symbionts of the ascidian genus ''Molgula'' (sea grapes). Systematics ''Nephromyces'' was first described in 1888 by Alfred Mathieu Giard as a chytrid fungus, because of its filamentous cells. He formally named three species, each corresponding to a different species of the host animal. Molecular phylogenetics later showed that ''Nephromyces'' are not actually fungi, but instead constitute a group within the Apicomplexa that is related to the Piroplasmida. Species of ''Nephromyces'' * ''Nephromyces molgularum'' Giard, 1888 * ''Nephromyces rosocovitanus'' Giard, 1888 * ''Nephromyces sorokini'' Giard, 1888 Description ''Nephromyces'' is found in the lumen of the renal sac of its host animals. The renal sac is a closed, fluid-filled structure that is derived from the epicardium during development. There are different cell types (at least seven in ''Nephromyces'' from ''Molgula manhattensis'') which appear to be different ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nephromyces Sorokini
''Nephromyces'' is a genus of apicomplexans that are symbionts of the ascidian genus ''Molgula'' (sea grapes). Systematics ''Nephromyces'' was first described in 1888 by Alfred Mathieu Giard as a chytrid fungus, because of its filamentous cells. He formally named three species, each corresponding to a different species of the host animal. Molecular phylogenetics later showed that ''Nephromyces'' are not actually fungi, but instead constitute a group within the Apicomplexa that is related to the Piroplasmida. Species of ''Nephromyces'' * ''Nephromyces molgularum'' Giard, 1888 * ''Nephromyces rosocovitanus'' Giard, 1888 * ''Nephromyces sorokini'' Giard, 1888 Description ''Nephromyces'' is found in the lumen of the renal sac of its host animals. The renal sac is a closed, fluid-filled structure that is derived from the epicardium during development. There are different cell types (at least seven in ''Nephromyces'' from ''Molgula manhattensis'') which appear to be different ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nephromyces Molgularum
''Nephromyces'' is a genus of apicomplexans that are symbionts of the ascidian genus ''Molgula'' (sea grapes). Systematics ''Nephromyces'' was first described in 1888 by Alfred Mathieu Giard as a chytrid fungus, because of its filamentous cells. He formally named three species, each corresponding to a different species of the host animal. Molecular phylogenetics later showed that ''Nephromyces'' are not actually fungi, but instead constitute a group within the Apicomplexa that is related to the Piroplasmida. Species of ''Nephromyces'' * ''Nephromyces molgularum'' Giard, 1888 * ''Nephromyces rosocovitanus'' Giard, 1888 * ''Nephromyces sorokini'' Giard, 1888 Description ''Nephromyces'' is found in the lumen of the renal sac of its host animals. The renal sac is a closed, fluid-filled structure that is derived from the epicardium during development. There are different cell types (at least seven in ''Nephromyces'' from ''Molgula manhattensis'') which appear to be different ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nephromyces Rosocovitanus
''Nephromyces'' is a genus of apicomplexans that are symbionts of the ascidian genus ''Molgula'' (sea grapes). Systematics ''Nephromyces'' was first described in 1888 by Alfred Mathieu Giard as a chytrid fungus, because of its filamentous cells. He formally named three species, each corresponding to a different species of the host animal. Molecular phylogenetics later showed that ''Nephromyces'' are not actually fungi, but instead constitute a group within the Apicomplexa that is related to the Piroplasmida. Species of ''Nephromyces'' * ''Nephromyces molgularum'' Giard, 1888 * ''Nephromyces rosocovitanus'' Giard, 1888 * ''Nephromyces sorokini'' Giard, 1888 Description ''Nephromyces'' is found in the lumen of the renal sac of its host animals. The renal sac is a closed, fluid-filled structure that is derived from the epicardium during development. There are different cell types (at least seven in ''Nephromyces'' from ''Molgula manhattensis'') which appear to be different ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apicomplexa Genera
The Apicomplexa (also called Apicomplexia) are a large phylum of parasitic alveolates. Most of them possess a unique form of organelle that comprises a type of non-photosynthetic plastid called an apicoplast, and an apical complex structure. The organelle is an adaptation that the apicomplexan applies in penetration of a host cell. The Apicomplexa are unicellular and spore-forming. All species are obligate endoparasites of animals, except '' Nephromyces'', a symbiont in marine animals, originally classified as a chytrid fungus. Motile structures such as flagella or pseudopods are present only in certain gamete stages. The Apicomplexa are a diverse group that includes organisms such as the coccidia, gregarines, piroplasms, haemogregarines, and plasmodia. Diseases caused by Apicomplexa include: * Babesiosis (''Babesia'') * Malaria (''Plasmodium'') * Cryptosporidiosis (''Cryptosporidium parvum'') * Cyclosporiasis (''Cyclospora cayetanensis'') * Cystoisosporiasis (''Cystoisospora ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apical Complex
The Apicomplexa (also called Apicomplexia) are a large phylum of parasitic alveolates. Most of them possess a unique form of organelle that comprises a type of non-photosynthetic plastid called an apicoplast, and an apical complex structure. The organelle is an adaptation that the apicomplexan applies in penetration of a host cell. The Apicomplexa are unicellular and spore-forming. All species are obligate endoparasites of animals, except ''Nephromyces'', a symbiont in marine animals, originally classified as a chytrid fungus. Motile structures such as flagella or pseudopods are present only in certain gamete stages. The Apicomplexa are a diverse group that includes organisms such as the coccidia, gregarines, piroplasms, haemogregarines, and plasmodia. Diseases caused by Apicomplexa include: * Babesiosis (''Babesia'') * Malaria (''Plasmodium'') * Cryptosporidiosis (''Cryptosporidium parvum'') * Cyclosporiasis (''Cyclospora cayetanensis'') * Cystoisosporiasis (''Cystoisospora be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apicomplexa
The Apicomplexa (also called Apicomplexia) are a large phylum of parasitic alveolates. Most of them possess a unique form of organelle that comprises a type of non-photosynthetic plastid called an apicoplast, and an apical complex structure. The organelle is an adaptation that the apicomplexan applies in penetration of a host cell. The Apicomplexa are unicellular and spore-forming. All species are obligate endoparasites of animals, except '' Nephromyces'', a symbiont in marine animals, originally classified as a chytrid fungus. Motile structures such as flagella or pseudopods are present only in certain gamete stages. The Apicomplexa are a diverse group that includes organisms such as the coccidia, gregarines, piroplasms, haemogregarines, and plasmodia. Diseases caused by Apicomplexa include: * Babesiosis (''Babesia'') * Malaria (''Plasmodium'') * Cryptosporidiosis (''Cryptosporidium parvum'') * Cyclosporiasis (''Cyclospora cayetanensis'') * Cystoisosporiasis (''Cystoisosp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apicomplexa
The Apicomplexa (also called Apicomplexia) are a large phylum of parasitic alveolates. Most of them possess a unique form of organelle that comprises a type of non-photosynthetic plastid called an apicoplast, and an apical complex structure. The organelle is an adaptation that the apicomplexan applies in penetration of a host cell. The Apicomplexa are unicellular and spore-forming. All species are obligate endoparasites of animals, except '' Nephromyces'', a symbiont in marine animals, originally classified as a chytrid fungus. Motile structures such as flagella or pseudopods are present only in certain gamete stages. The Apicomplexa are a diverse group that includes organisms such as the coccidia, gregarines, piroplasms, haemogregarines, and plasmodia. Diseases caused by Apicomplexa include: * Babesiosis (''Babesia'') * Malaria (''Plasmodium'') * Cryptosporidiosis (''Cryptosporidium parvum'') * Cyclosporiasis (''Cyclospora cayetanensis'') * Cystoisosporiasis (''Cystoisosp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Achromatorida
Achromatorida is an order (biology), order of non-pigmented intraerythrocytic parasitic alveolates belonging to the subclass Haemosporidiasina. The order was created by Jacques Euzéby in 1988. The taxonomy of these organisms has been one of some controversy. Weylon in 1926 grouped many of these genera into the genus ''Babesia'' - given what is now known about these genera this was probably an error. Agreement on the organisation of these genera probably cannot be regarded as being settled. Description These are minute rounded or pyriform parasites found within erythrocytes, or other circulating or endothelial cells of vertebrates. The parasites reproduce by Protozoal merogony, merogony without oocysts or spores. The apical complex has a polar ring and rhoptries. A conoid (organelle), conoid is lacking and most species lack the associated pellicular microtubules. Flagellae are lacking. The trophozoite stage is separated from erythrocyte by single membrane (in the other groups ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Molgula
''Molgula'', or sea grapes, are very common, globular, individual marine tunicates roughly the size of grapes.Sanamyan, K.; Monniot, C. (2012). Molgula Forbes, 1848. In: Noa Shenkar, Arjan Gittenberger, Gretchen Lambert, Marc Rius, Rosana Moreira Da Rocha, Billie J. Swalla, Xavier Turon (2012) Ascidiacea World Database. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=103509 on 2012-02-26 They are translucent with two protruding siphons. They are found subtidally, attached to slow-moving submerged objects or organisms. All species of ''Molgula'' have a fluid-filled structure called the renal sac. The renal sac contains nitrogenous wastes, solid concretions composed of weddellite and calcite, and an apicomplexan symbiont called '' Nephromyces.'' In the western Atlantic Ocean, they range from the Arctic to North Carolina, to the center of the United States Eastern Seaboard. Species * '' Molgula aidae'' Oka, 1914 * '' Molg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alfred Mathieu Giard
Alfred Mathieu Giard (8 August 1846 – 8 August 1908) was a French zoologist born in Valenciennes. Biography In 1867 he began his studies of natural sciences at the École Normale Supérieure, followed by work as ''préparateur de zoologie'' at the laboratory of Henri de Lacaze-Duthiers (1821–1901) in Paris. In 1872 he defended his doctoral thesis with a study on compound ascidians titled "''Recherches sur les ascidies composées ou synascidies''". From 1873 to 1882, he was ''professeur suppléant'' of natural history at the faculty of sciences in Lille, and in the meantime, was also affiliated with the Institut industriel du Nord. In 1874 he founded a biological station at Wimereux in order to familiarize his students to marine and terrestrial organisms. At Lille, he is credited for putting together an excellent school of zoology. In 1887 he became a lecturer at the École Normale Supérieure, and from 1888 until his death, he was a professor at the faculty of sciences in P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apicomplexan Life Cycle
Apicomplexans, a group of intracellular parasites, have life cycle stages that allow them to survive the wide variety of environments they are exposed to during their complex life cycle. Each stage in the life cycle of an apicomplexan organism is typified by a ''cellular variety'' with a distinct morphology and biochemistry. Not all apicomplexa develop all the following cellular varieties and division methods. This presentation is intended as an outline of a hypothetical generalised apicomplexan organism. Methods of asexual replication Apicomplexans (sporozoans) replicate via ways of multiple fission (also known as schizogony). These ways include , and , although the latter is sometimes referred to as schizogony, despite its general meaning. Merogony is an asexually reproductive process of apicomplexa. After infecting a host cell, a trophozoite ( see glossary below) increases in size while repeatedly replicating its nucleus and other organelles. During this process, the or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Molgula Occidentalis
''Molgula occidentalis'' is a species of marine invertebrate of the family Molgulidae. The scientific name of the species was validated and published for the first time in 1883 by Traustedt. ''URMO: UNESCO-IOC Register of Marine Organisms''. Land J. van der (ed), 2008-11-18 It is a soft-bodied, intertidal Ascidiacea, ascidian, sac-like filter feeders in the subphylum tunicate characterized by a hard outer covering known as a “tunic,” abundant in the shallow subtidal and intertidal zones of the Northern Gulf of Mexico, where they establish pseudopopulations. Description These ascidians have soft bodies but are covered by a hard, protective tunic as they are part of the subphylum tunicate. They are sessile intertidal organisms. The tunic contains hair like extensions of the epidermis known as ampullae, which are hollow and tubular. Ampullae grow shortly after the larvae settles in the sediments and are used to form a strong attachment to grains of sand. The grains of sand ho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
