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Aggregata Reticulosa
''Aggregata'' is a genus of parasitic alveolates belonging to the phylum Apicomplexa. Taxonomy The organism found in the octopus was first named as ''Benedenia octopiana'' by Schneider in 1875. Since ''Benedenia'' was preoccupied, ''Eucoccidium'' was proposed as a replacement name by Lühe in 1903. The genus ''Aggregata'' was named by Frenzel in 1885 for parasites in a crustacean. These were later shown as two stages in the lifecycle of an identical organism by Léger and Duboscq. This genus appears to be related to the adelinids and '' Hepatozoon'' but this needs confirmation.Kopecná J, Jirků M, Oborník M, Tokarev YS, Lukes J, Modrý D (2006) Phylogenetic analysis of coccidian parasites from invertebrates: search for missing links. Protist 157(2):173-183 Life cycle The life cycle was determined in 1914. These parasites are heteroxenous, with two hosts in their life cycle. Sexual stages are found in the digestive tract of cephalopods and asexual stages infect the digestive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aggregata Andresi
''Aggregata'' is a genus of parasitic alveolates belonging to the phylum Apicomplexa. Taxonomy The organism found in the octopus was first named as ''Benedenia octopiana'' by Schneider in 1875. Since ''Benedenia'' was preoccupied, ''Eucoccidium'' was proposed as a replacement name by Lühe in 1903. The genus ''Aggregata'' was named by Frenzel in 1885 for parasites in a crustacean. These were later shown as two stages in the lifecycle of an identical organism by Léger and Duboscq. This genus appears to be related to the adelinids and '' Hepatozoon'' but this needs confirmation.Kopecná J, Jirků M, Oborník M, Tokarev YS, Lukes J, Modrý D (2006) Phylogenetic analysis of coccidian parasites from invertebrates: search for missing links. Protist 157(2):173-183 Life cycle The life cycle was determined in 1914. These parasites are heteroxenous, with two hosts in their life cycle. Sexual stages are found in the digestive tract of cephalopods and asexual stages infect the digestive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aggregata Reticulosa
''Aggregata'' is a genus of parasitic alveolates belonging to the phylum Apicomplexa. Taxonomy The organism found in the octopus was first named as ''Benedenia octopiana'' by Schneider in 1875. Since ''Benedenia'' was preoccupied, ''Eucoccidium'' was proposed as a replacement name by Lühe in 1903. The genus ''Aggregata'' was named by Frenzel in 1885 for parasites in a crustacean. These were later shown as two stages in the lifecycle of an identical organism by Léger and Duboscq. This genus appears to be related to the adelinids and '' Hepatozoon'' but this needs confirmation.Kopecná J, Jirků M, Oborník M, Tokarev YS, Lukes J, Modrý D (2006) Phylogenetic analysis of coccidian parasites from invertebrates: search for missing links. Protist 157(2):173-183 Life cycle The life cycle was determined in 1914. These parasites are heteroxenous, with two hosts in their life cycle. Sexual stages are found in the digestive tract of cephalopods and asexual stages infect the digestive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cephalopod
A cephalopod is any member of the molluscan class Cephalopoda (Greek plural , ; "head-feet") such as a squid, octopus, cuttlefish, or nautilus. These exclusively marine animals are characterized by bilateral body symmetry, a prominent head, and a set of arms or tentacles (muscular hydrostats) modified from the primitive molluscan foot. Fishers sometimes call cephalopods "inkfish", referring to their common ability to squirt ink. The study of cephalopods is a branch of malacology known as teuthology. Cephalopods became dominant during the Ordovician period, represented by primitive nautiloids. The class now contains two, only distantly related, extant subclasses: Coleoidea, which includes octopuses, squid, and cuttlefish; and Nautiloidea, represented by ''Nautilus'' and ''Allonautilus''. In the Coleoidea, the molluscan shell has been internalized or is absent, whereas in the Nautiloidea, the external shell remains. About 800 living species of cephalopods have been ident ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heteroxenous
Heteroxeny, or heteroxenous development, characterizes a parasite whose development involves several host species. Heteroxeny has been used as the basis for splitting genera. When there are two or three hosts, the development cycle is named diheteroxenous or triheteroxenous, respectively. More ambiguously, these terms are sometimes synonymized as dixenous or trixenous. The etymology of the terms heteroxeny / heteroxenous derives from the two ancient Greek words (), meaning "other, another, different", and (), meaning "foreign". In mycology, the term heteroecious A heteroecious parasite is one that requires at least two hosts. The ''primary host'' is the host in which the parasite spends its adult life; the other is the ''secondary host''. Both hosts are required for the parasite to complete its life cycle ... has also been used for parasitic fungi with multiple hosts, and the terms can be used synonymously. References Parasitism {{Ecology-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hepatozoon
''Hepatozoon'' is a genus of Apicomplexa alveolates which incorporates over 300 species obligate intraerythrocytic parasites. Species have been described from all groups of tetrapod vertebrates, as well as a wide range of haematophagous arthropods, which serve as both the vectors and definitive hosts of the parasite. By far the most biodiverse and prevalent of all haemogregarines, the genus is distinguished by its unique reciprocal trophic lifecycle which lacks the salivary transmission between hosts commonly associated with other apicomplexans. While particularly prevalent in amphibians and reptiles, the genus is more well known in veterinary circles for causing a tick-borne disease called hepatozoonosis in some mammals. Lifecycle Members of the genus ''Hepatozoon'' possess particularly complex lifecycles which vary considerably among species. Sexual reproduction and sporogenic development occur within the haemocoel of the invertebrate host, which is subsequently consumed ... [...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] |
Phylum
In biology, a phylum (; plural: phyla) is a level of classification or taxonomic rank below kingdom and above class. Traditionally, in botany the term division has been used instead of phylum, although the International Code of Nomenclature for algae, fungi, and plants accepts the terms as equivalent. Depending on definitions, the animal kingdom Animalia contains about 31 phyla, the plant kingdom Plantae contains about 14 phyla, and the fungus kingdom Fungi contains about 8 phyla. Current research in phylogenetics is uncovering the relationships between phyla, which are contained in larger clades, like Ecdysozoa and Embryophyta. General description The term phylum was coined in 1866 by Ernst Haeckel from the Greek (, "race, stock"), related to (, "tribe, clan"). Haeckel noted that species constantly evolved into new species that seemed to retain few consistent features among themselves and therefore few features that distinguished them as a group ("a self-contained unity" ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aggregata Valdessensis
''Aggregata'' is a genus of parasitic alveolates belonging to the phylum Apicomplexa. Taxonomy The organism found in the octopus was first named as ''Benedenia octopiana'' by Schneider in 1875. Since ''Benedenia'' was preoccupied, ''Eucoccidium'' was proposed as a replacement name by Lühe in 1903. The genus ''Aggregata'' was named by Frenzel in 1885 for parasites in a crustacean. These were later shown as two stages in the lifecycle of an identical organism by Léger and Duboscq. This genus appears to be related to the adelinids and '' Hepatozoon'' but this needs confirmation.Kopecná J, Jirků M, Oborník M, Tokarev YS, Lukes J, Modrý D (2006) Phylogenetic analysis of coccidian parasites from invertebrates: search for missing links. Protist 157(2):173-183 Life cycle The life cycle was determined in 1914. These parasites are heteroxenous, with two hosts in their life cycle. Sexual stages are found in the digestive tract of cephalopods and asexual stages infect the digestive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aggregata Vagans
''Aggregata'' is a genus of parasitic alveolates belonging to the phylum Apicomplexa. Taxonomy The organism found in the octopus was first named as ''Benedenia octopiana'' by Schneider in 1875. Since ''Benedenia'' was preoccupied, ''Eucoccidium'' was proposed as a replacement name by Lühe in 1903. The genus ''Aggregata'' was named by Frenzel in 1885 for parasites in a crustacean. These were later shown as two stages in the lifecycle of an identical organism by Léger and Duboscq. This genus appears to be related to the adelinids and '' Hepatozoon'' but this needs confirmation.Kopecná J, Jirků M, Oborník M, Tokarev YS, Lukes J, Modrý D (2006) Phylogenetic analysis of coccidian parasites from invertebrates: search for missing links. Protist 157(2):173-183 Life cycle The life cycle was determined in 1914. These parasites are heteroxenous, with two hosts in their life cycle. Sexual stages are found in the digestive tract of cephalopods and asexual stages infect the digestive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aggregata Stellata
''Aggregata'' is a genus of parasitic alveolates belonging to the phylum Apicomplexa. Taxonomy The organism found in the octopus was first named as ''Benedenia octopiana'' by Schneider in 1875. Since ''Benedenia'' was preoccupied, ''Eucoccidium'' was proposed as a replacement name by Lühe in 1903. The genus ''Aggregata'' was named by Frenzel in 1885 for parasites in a crustacean. These were later shown as two stages in the lifecycle of an identical organism by Léger and Duboscq. This genus appears to be related to the adelinids and '' Hepatozoon'' but this needs confirmation.Kopecná J, Jirků M, Oborník M, Tokarev YS, Lukes J, Modrý D (2006) Phylogenetic analysis of coccidian parasites from invertebrates: search for missing links. Protist 157(2):173-183 Life cycle The life cycle was determined in 1914. These parasites are heteroxenous, with two hosts in their life cycle. Sexual stages are found in the digestive tract of cephalopods and asexual stages infect the digestive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aggregata Spinosa
''Aggregata'' is a genus of parasitic alveolates belonging to the phylum Apicomplexa. Taxonomy The organism found in the octopus was first named as ''Benedenia octopiana'' by Schneider in 1875. Since ''Benedenia'' was preoccupied, ''Eucoccidium'' was proposed as a replacement name by Lühe in 1903. The genus ''Aggregata'' was named by Frenzel in 1885 for parasites in a crustacean. These were later shown as two stages in the lifecycle of an identical organism by Léger and Duboscq. This genus appears to be related to the adelinids and '' Hepatozoon'' but this needs confirmation.Kopecná J, Jirků M, Oborník M, Tokarev YS, Lukes J, Modrý D (2006) Phylogenetic analysis of coccidian parasites from invertebrates: search for missing links. Protist 157(2):173-183 Life cycle The life cycle was determined in 1914. These parasites are heteroxenous, with two hosts in their life cycle. Sexual stages are found in the digestive tract of cephalopods and asexual stages infect the digestive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aggregata Siedleckii
''Aggregata'' is a genus of parasitic alveolates belonging to the phylum Apicomplexa. Taxonomy The organism found in the octopus was first named as ''Benedenia octopiana'' by Schneider in 1875. Since ''Benedenia'' was preoccupied, ''Eucoccidium'' was proposed as a replacement name by Lühe in 1903. The genus ''Aggregata'' was named by Frenzel in 1885 for parasites in a crustacean. These were later shown as two stages in the lifecycle of an identical organism by Léger and Duboscq. This genus appears to be related to the adelinids and '' Hepatozoon'' but this needs confirmation.Kopecná J, Jirků M, Oborník M, Tokarev YS, Lukes J, Modrý D (2006) Phylogenetic analysis of coccidian parasites from invertebrates: search for missing links. Protist 157(2):173-183 Life cycle The life cycle was determined in 1914. These parasites are heteroxenous, with two hosts in their life cycle. Sexual stages are found in the digestive tract of cephalopods and asexual stages infect the digestive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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