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Dorisa Vagabundae
''Dorisa'' is a genus of parasitic alveolates in the phylum Apicomplexa. The genus was separated from the genus ''Dorisiella'' by Levine in 1908.Levine ND (1980) ''Dorisa'' n. gen. (Protozoa, Apicomplexa, Eimeriidae). J Parasitol 66(1):11 ''Dorisiella'' was created for a parasite infecting a marine polychaete by Ray in 1930. Levine separated off a number of species that while morphologically similar occurred in vertebrates rather that polychaetes. Life cycle The species in this genus infect the gastrointestinal wall of vertebrates. Description Genus diagnosis is dependent on the oocyst 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 i ...: there is a definite cell wall in this genus whereas in ''Dorisiella'' the oocyst wall is membrane like. Host records *''D. harpia'' - lesser ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eukaryota
Eukaryotes () are organisms whose Cell (biology), cells have a cell nucleus, nucleus. All animals, plants, fungi, and many unicellular organisms, are Eukaryotes. They belong to the group of organisms Eukaryota or Eukarya, which is one of the Three-domain system, three domains of life. Bacteria and Archaea (both prokaryotes) make up the other two domains. The eukaryotes are usually now regarded as having emerged in the Archaea or as a sister of the Asgard (archaea), Asgard archaea. This implies that there are only Two-domain system, two domains of life, Bacteria and Archaea, with eukaryotes incorporated among archaea. Eukaryotes represent a small minority of the number of organisms, but, due to their generally much larger size, their collective global biomass (ecology), biomass is estimated to be about equal to that of prokaryotes. Eukaryotes emerged approximately 2.3–1.8 billion years ago, during the Proterozoic eon, likely as Flagellated cell, flagellated phagotrophs. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dorisa Harpia
''Dorisa'' is a genus of parasitic alveolates in the phylum Apicomplexa. The genus was separated from the genus '' Dorisiella'' by Levine in 1908.Levine ND (1980) ''Dorisa'' n. gen. (Protozoa, Apicomplexa, Eimeriidae). J Parasitol 66(1):11 ''Dorisiella'' was created for a parasite infecting a marine polychaete by Ray in 1930. Levine separated off a number of species that while morphologically similar occurred in vertebrates rather that polychaetes. Life cycle The species in this genus infect the gastrointestinal wall of vertebrates. Description Genus diagnosis is dependent on the oocyst 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 i ...: there is a definite cell wall in this genus whereas in ''Dorisiella'' the oocyst wall is membrane like. Host records *''D. harpia'' - lesse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oocyst
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] |
Polychaete
Polychaeta () is a paraphyletic class (biology), class of generally marine invertebrate, marine annelid worms, common name, commonly called bristle worms or polychaetes (). Each body segment has a pair of fleshy protrusions called parapodia that bear many bristles, called chaetae, which are made of chitin. More than 10,000 species are described in this class. Common representatives include the lugworm (''Arenicola marina'') and the Alitta virens, sandworm or Alitta succinea, clam worm ''Alitta''. Polychaetes as a class are robust and widespread, with species that live in the coldest ocean temperatures of the abyssal plain, to forms which tolerate the extremely high temperatures near hydrothermal vents. Polychaetes occur throughout the Earth's oceans at all depths, from forms that live as plankton near the surface, to a 2- to 3-cm specimen (still unclassified) observed by the robot ocean probe Nereus (underwater vehicle), ''Nereus'' at the bottom of the Challenger Deep, the deepes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dorisiella
''Dorisiella'' is a genus of parasitic alveolates belonging to the phylum Apicomplexa. This genus was created in 1930 by Ray.Ray HN (1930) Studies on some sporozoa in polychaete worms. II. ''Dorisiella scolelepidis'', n. gen., n. sp. Parasitology 22: 471-480 Taxonomy Currently there is only one species recognised in this genus. Life cycle This species infects the gastrointestinal tract of polychaete worms. It is not known if it has any other host. The parasite infects the cells of the gut wall. The oocysts have thin membrane like walls. Each sporocyst gives rise to 8 sporozoites Host records '' Malacoceros fuliginosus''. This worm of the family ''Spionidae Spionidae is a family of marine worms within the Polychaeta. Spionids are selective deposit feeders that use their two grooved palps Pedipalps (commonly shortened to palps or palpi) are the second pair of appendages of chelicerates – a grou ...'' was previously known as ''Scolelepis fuliginosa''. This name is now ... [...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] |
Parasitic
Parasitism is a close relationship between species, where one organism, the parasite, lives on or inside another organism, the host, causing it some harm, and is adapted structurally to this way of life. The entomologist E. O. Wilson has characterised parasites as "predators that eat prey in units of less than one". Parasites include single-celled protozoans such as the agents of malaria, sleeping sickness, and amoebic dysentery; animals such as hookworms, lice, mosquitoes, and vampire bats; fungi such as honey fungus and the agents of ringworm; and plants such as mistletoe, dodder, and the broomrapes. There are six major parasitic strategies of exploitation of animal hosts, namely parasitic castration, directly transmitted parasitism (by contact), trophicallytransmitted parasitism (by being eaten), vector-transmitted parasitism, parasitoidism, and micropredation. One major axis of classification concerns invasiveness: an endoparasite lives inside the host's body; an e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dorisa Vagabundae
''Dorisa'' is a genus of parasitic alveolates in the phylum Apicomplexa. The genus was separated from the genus ''Dorisiella'' by Levine in 1908.Levine ND (1980) ''Dorisa'' n. gen. (Protozoa, Apicomplexa, Eimeriidae). J Parasitol 66(1):11 ''Dorisiella'' was created for a parasite infecting a marine polychaete by Ray in 1930. Levine separated off a number of species that while morphologically similar occurred in vertebrates rather that polychaetes. Life cycle The species in this genus infect the gastrointestinal wall of vertebrates. Description Genus diagnosis is dependent on the oocyst 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 i ...: there is a definite cell wall in this genus whereas in ''Dorisiella'' the oocyst wall is membrane like. Host records *''D. harpia'' - lesser ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dorisa Rayi
''Dorisa'' is a genus of parasitic alveolates in the phylum Apicomplexa. The genus was separated from the genus ''Dorisiella'' by Levine in 1908.Levine ND (1980) ''Dorisa'' n. gen. (Protozoa, Apicomplexa, Eimeriidae). J Parasitol 66(1):11 ''Dorisiella'' was created for a parasite infecting a marine polychaete by Ray in 1930. Levine separated off a number of species that while morphologically similar occurred in vertebrates rather that polychaetes. Life cycle The species in this genus infect the gastrointestinal wall of vertebrates. Description Genus diagnosis is dependent on the oocyst 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 i ...: there is a definite cell wall in this genus whereas in ''Dorisiella'' the oocyst wall is membrane like. Host records *''D. harpia'' - lesser ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dorisa Passeries
''Dorisa'' is a genus of parasitic alveolates in the phylum Apicomplexa. The genus was separated from the genus ''Dorisiella'' by Levine in 1908.Levine ND (1980) ''Dorisa'' n. gen. (Protozoa, Apicomplexa, Eimeriidae). J Parasitol 66(1):11 ''Dorisiella'' was created for a parasite infecting a marine polychaete by Ray in 1930. Levine separated off a number of species that while morphologically similar occurred in vertebrates rather that polychaetes. Life cycle The species in this genus infect the gastrointestinal wall of vertebrates. Description Genus diagnosis is dependent on the oocyst 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 i ...: there is a definite cell wall in this genus whereas in ''Dorisiella'' the oocyst wall is membrane like. Host records *''D. harpia'' - lesser ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dorisa Mandali
''Dorisa'' is a genus of parasitic alveolates in the phylum Apicomplexa. The genus was separated from the genus ''Dorisiella'' by Levine in 1908.Levine ND (1980) ''Dorisa'' n. gen. (Protozoa, Apicomplexa, Eimeriidae). J Parasitol 66(1):11 ''Dorisiella'' was created for a parasite infecting a marine polychaete by Ray in 1930. Levine separated off a number of species that while morphologically similar occurred in vertebrates rather that polychaetes. Life cycle The species in this genus infect the gastrointestinal wall of vertebrates. Description Genus diagnosis is dependent on the oocyst 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 i ...: there is a definite cell wall in this genus whereas in ''Dorisiella'' the oocyst wall is membrane like. Host records *''D. harpia'' - lesser ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dorisa Indica
''Dorisa'' is a genus of parasitic alveolates in the phylum Apicomplexa. The genus was separated from the genus ''Dorisiella'' by Levine in 1908.Levine ND (1980) ''Dorisa'' n. gen. (Protozoa, Apicomplexa, Eimeriidae). J Parasitol 66(1):11 ''Dorisiella'' was created for a parasite infecting a marine polychaete by Ray in 1930. Levine separated off a number of species that while morphologically similar occurred in vertebrates rather that polychaetes. Life cycle The species in this genus infect the gastrointestinal wall of vertebrates. Description Genus diagnosis is dependent on the oocyst 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 i ...: there is a definite cell wall in this genus whereas in ''Dorisiella'' the oocyst wall is membrane like. Host records *''D. harpia'' - lesser ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
