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Plasmodium Tejerai
''Plasmodium tejerai'' is a parasite of the genus ''Plasmodium'' subgenus ''Haemamoeba''. Like all ''Plasmodium'' species ''P. tejerai'' has both vertebrate and insect hosts. The vertebrate hosts for this parasite are birds. Taxonomy The parasite was first described by Gabaldon and Ulloa in 1977. Distribution This parasite is found in Brazil and Venezuela. Vectors Not known. Clinical features and host pathology This organism infects the domestic turkey (''Meleagris gallopavo'') and the South American penguin (''Spheniscus magellanicus''). Morphologically this parasite resembles ''Plasmodium relictum'' closely. In the penguin infection may be fatal with splenomegaly, hepatomegaly, hydropericardium and pulmonary oedema. References Plasmodium, tejerai Parasites of birds {{plasmodium-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plasmodium
''Plasmodium'' is a genus of unicellular eukaryotes that are obligate parasites of vertebrates and insects. The life cycles of ''Plasmodium'' species involve development in a blood-feeding insect host which then injects parasites into a vertebrate host during a blood meal. Parasites grow within a vertebrate body tissue (often the liver) before entering the bloodstream to infect red blood cells. The ensuing destruction of host red blood cells can result in malaria. During this infection, some parasites are picked up by a blood-feeding insect (mosquitoes in majority cases), continuing the life cycle. ''Plasmodium'' is a member of the phylum Apicomplexa, a large group of parasitic eukaryotes. Within Apicomplexa, ''Plasmodium'' is in the order Haemosporida and family Plasmodiidae. Over 200 species of ''Plasmodium'' have been described, many of which have been subdivided into 14 subgenera based on parasite morphology and host range. Evolutionary relationships among different ''Pl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haemamoeba
''Haemamoeba'' is a subgenus of the genus ''Plasmodium'' — all of which are parasites. The subgenus was created in 1963 by created by Corradetti ''et al.''. Species in this subgenus infect birds. __TOC__ Diagnostic features Species in the subgenus ''Haemamoeba'' have the following characteristics: Mature schizonts are larger than the host cell nucleus and commonly displace it. Gametocytes are large, round, oval or irregular in shape and are substantially larger than the host nucleus. Species in this subgenus * ''Plasmodium cathemerium'' * ''Plasmodium coggeshalli'' * ''Plasmodium elongatum'' * ''Plasmodium gallinaceum'' * '' Plasmodium giovannolai'' * '' Plasmodium griffithsi'' * ''Plasmodium lutzi'' * '' Plasmodium matutinum'' * '' Plasmodium parvulum'' * ''Plasmodium relictum'' * ''Plasmodium tejerai ''Plasmodium tejerai'' is a parasite of the genus ''Plasmodium'' subgenus ''Haemamoeba''. Like all ''Plasmodium'' species ''P. tejerai'' has both vertebrate and insect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vertebrate
Vertebrates () comprise all animal taxa within the subphylum Vertebrata () ( chordates with backbones), including all mammals, birds, reptiles, amphibians, and fish. Vertebrates represent the overwhelming majority of the phylum Chordata, with currently about 69,963 species described. Vertebrates comprise such groups as the following: * jawless fish, which include hagfish and lampreys * jawed vertebrates, which include: ** cartilaginous fish (sharks, rays, and ratfish) ** bony vertebrates, which include: *** ray-fins (the majority of living bony fish) *** lobe-fins, which include: **** coelacanths and lungfish **** tetrapods (limbed vertebrates) Extant vertebrates range in size from the frog species ''Paedophryne amauensis'', at as little as , to the blue whale, at up to . Vertebrates make up less than five percent of all described animal species; the rest are invertebrates, which lack vertebral columns. The vertebrates traditionally include the hagfish, which do no ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Insect
Insects (from Latin ') are pancrustacean hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body ( head, thorax and abdomen), three pairs of jointed legs, compound eyes and one pair of antennae. Their blood is not totally contained in vessels; some circulates in an open cavity known as the haemocoel. Insects are the most diverse group of animals; they include more than a million described species and represent more than half of all known living organisms. The total number of extant species is estimated at between six and ten million; In: potentially over 90% of the animal life forms on Earth are insects. Insects may be found in nearly all environments, although only a small number of species reside in the oceans, which are dominated by another arthropod group, crustaceans, which recent research has indicated insects are nested within. Nearly all insects hatch from eggs. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bird
Birds are a group of warm-blooded vertebrates constituting the class Aves (), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton. Birds live worldwide and range in size from the bee hummingbird to the ostrich. There are about ten thousand living species, more than half of which are passerine, or "perching" birds. Birds have whose development varies according to species; the only known groups without wings are the extinct moa and elephant birds. Wings, which are modified forelimbs, gave birds the ability to fly, although further evolution has led to the loss of flight in some birds, including ratites, penguins, and diverse endemic island species. The digestive and respiratory systems of birds are also uniquely adapted for flight. Some bird species of aquatic environments, particularly seabirds and some waterbirds, have further evolved for swimming. B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meleagris Gallopavo
The wild turkey (''Meleagris gallopavo'') is an upland ground bird native to North America, one of two extant species of turkey and the heaviest member of the order Galliformes. It is the ancestor to the domestic turkey, which was originally derived from a southern Mexican subspecies of wild turkey (not the related ocellated turkey). Description Adult wild turkeys have long reddish-yellow to grayish-green legs. The body feathers are generally blackish and dark, sometimes grey brown overall with a coppery sheen that becomes more complex in adult males. Adult males, called toms or gobblers, have a large, featherless, reddish head, red throat, and red wattles on the throat and neck. The head has fleshy growths called caruncles. Juvenile males are called jakes; the difference between an adult male and a juvenile is that the jake has a very short beard and his tail fan has longer feathers in the middle. The adult male's tail fan feathers will be all the same length. When males a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spheniscus Magellanicus
The Magellanic penguin (''Spheniscus magellanicus'') is a South American penguin, breeding in coastal Patagonia, including Argentina, Chile, and the Falkland Islands, with some migrating to Brazil and Uruguay, where they are occasionally seen as far north as Espirito Santo. Vagrants have been found in El Salvador, the Avian Island in Antarctica, Australia, and New Zealand. It is the most numerous of the ''Spheniscus'' penguins. Its nearest relatives are the African penguin, the Humboldt penguin, and the Galápagos penguins. The Magellanic penguin was named after Portuguese explorer Ferdinand Magellan, who spotted the birds in 1520. The species is listed as being of Least Concern by the IUCN. Description Magellanic penguins are medium-sized penguins which grow to be tall and weigh between . The males are larger than the females, and the weight of both drops while the parents raise their young. Adults have black backs and white abdomens. There are two black bands between the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plasmodium Relictum
''Plasmodium relictum'' is a species in the genus ''Plasmodium,'' subgenus '' Haemamoeba''. It is a parasite, and the most common cause of malaria in birds. Like all ''Plasmodium'' species, ''P. relictum'' has both vertebrate and insect hosts. The vertebrate hosts for this parasite are birds. Distribution ''P. relictum'' is geographically widespread, and is the most widespread malaria parasite of birds. Climate change is broadening its distribution further and is expected to continue to do so, including into higher elevations. Hosts Avian ''P. relictum'' infects a wide variety of birds including birds from various orders. Infections in numerous wild birds and experimental animals have been described including partridges, canaries, chickens, ducks, pigeons and '' Spheniscus magellanicus'' (Magellanic penguins). . . Experimental attempts to infect owls were not successful, suggesting owls may not be susceptible to ''P. relictum''. Vector ''Culex quinquefasciatus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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