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Rosette (schizont Appearance)
The rosette is a formation characteristic of schizonts in infection by the reptile parasites '' Plasmodium tropiduri'' and '' P. holaspi'' or by the fish parasite '' Babesiosoma''. It is also seen in the case of human parasite ''Plasmodium malariae ''Plasmodium malariae'' is a parasitic protozoan that causes malaria in humans. It is one of several species of ''Plasmodium'' parasites that infect other organisms as pathogens, also including ''Plasmodium falciparum'' and ''Plasmodium vivax'' ...''. References Symptoms and signs {{Symptom-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schizont
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 org ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plasmodium Tropiduri
''Plasmodium tropiduri'' is a parasite of the genus ''Plasmodium'' subgenus '' Lacertaemoba''. As in all ''Plasmodium'' species, ''P. tropiduri'' has both vertebrate and insect hosts. The vertebrate hosts for this parasite are reptiles. This species is closely related to ''Plasmodium floridense'' and '' Plasmodium minasense''. Taxonomy The parasite was first described by Aragão and Neiva in 1909. It had been previous discovered by Carlos Chagas but not formally described. Later it was realised that this species was in fact a species complex. This complex was divided into a number of subspecies by Telford in 1979. Subspecies * ''Plasmodium tropiduri aquaticum'' is found in ''Anolis lionotus'' and '' Anolis poecilopus'' in Panama and Costa Rica. Schizonts are found mostly in pro-erythrocytes, are smaller than erythrocyte nuclei, have 4 to 14 nuclei and contain pigment. Gametocytes occur in erythrocytes, are smaller than erythrocyte nuclei and contain pigment. * ''Plasmodium ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plasmodium Holaspi
''Plasmodium holaspi'' is a parasite of the genus ''Plasmodium'' subgenus ''Lacertamoeba''. Like all ''Plasmodium'' species ''P. holaspi'' has both vertebrate and insect hosts. The vertebrate hosts for this parasite are reptiles. Description The parasite was first described by Telford in 1986. Geographical occurrence This species is found in Tanzania. Clinical features and host pathology This parasite infects the flying lacertid ''Holaspis guentheri ''Holaspis guentheri'', commonly known as the sawtail lizard or western neon blue-tailed tree lizard is a species of lizard occurring in Sierra Leone, Ghana, Nigeria, Cameroon, Gabon, Equatorial Guinea, Democratic Republic of the Congo, Central ...''. References holaspi {{plasmodium-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Babesiosoma
''Babesiosoma'' is a genus of parasitic alveolates in the phylum Apicomplexia. They have two hosts in their life cycle: the vertebrate hosts are fish and the invertebrate vectors are leeches. This genus has been poorly studied and little is known about it. History The genus was created in 1956 by Jakowski and Nigrelli.Jakowska S, Nigrelli RF (1956)Some protozoan diseases of man and animals: Anaplasmosis, Babesiosis, and Toxoplasmosis. Annal NY Acad Sci 64, 112–127 Seven species have been recognised in this genus.Misra KK, Haldar DP, Chakravarty MM (1969) ''Babesiosoma ophicephali'' n. sp. from the freshwater teleost ''Ophicephalus punctatus'' Bloch. J Protozool 16(3):446-449Negm-Eldin MM (1998) Life cycle, host restriction and longevity of ''Babesiosoma mariae'' HOARE, 1930 (Apicomplexa: Dactylosomatidae). Dtsch Tierarztl Wochenschr 105(10):367-374Smit NJ, Van As JG, Davies AJ (2003) Observations on ''Babesiosoma mariae'' (Apicomplexa: Dactylosomatidae) from the Okavango D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plasmodium Malariae
''Plasmodium malariae'' is a parasitic protozoan that causes malaria in humans. It is one of several species of ''Plasmodium'' parasites that infect other organisms as pathogens, also including ''Plasmodium falciparum'' and ''Plasmodium vivax'', responsible for most malarial infection. Found worldwide, it causes a so-called "benign malaria", not nearly as dangerous as that produced by ''P. falciparum'' or ''P. vivax''. The signs include fevers that recur at approximately three-day intervals – a ''quartan fever'' or ''quartan malaria'' – longer than the two-day (tertian) intervals of the other malarial parasites. History Malaria has been recognized since the Greek and Roman civilizations over 2,000 years ago, with different patterns of fever described by the early Greeks. In 1880, Alphonse Laveran discovered that the causative agent of malaria is a parasite. Detailed work of Golgi in 1886 demonstrated that in some patients there was a relationship between the 72-hour life c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
