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Oct 29, 2018 · The protozoan Entamoeba gingivalis resides in the oral cavity and is frequently observed in the periodontal pockets of humans and pets. This species of Entamoeba is closely related to the human pathogen Entamoeba histolytica, the agent of amoebiasis. Although E. gingivalis is highly enriched in people with periodontitis (a disease in which ...
Acanthamoeba is a genus of amoebae that are commonly recovered from soil, fresh water, and other habitats . The genus Acanthamoeba has two stages in its life cycle, the metabolically active trophozoite stage and a dormant, stress-resistant cyst stage. In nature, Acanthamoeba species are generally free-living bacterivores.
The majority of infections restricted to the lumen of the intestine (“luminal amebiasis”) are asymptomatic. Amebic colitis, or invasive intestinal amebiasis, occurs when the mucosa is invaded. Symptoms include severe dysentery and associated complications. Severe chronic infections may lead to further complications such as peritonitis ...
Ecology. Naegleria fowleri, an excavata, inhabits soil and water. It is sensitive to drying and acidic conditions, and cannot survive in seawater. The amoeba thrives at moderately elevated temperatures, making infections more likely during summer months. N. fowleri is a facultative thermophile, capable of growing at temperatures up to 46 °C ...
Amoeba proteus extending lobose pseudopodia. A pseudopod or pseudopodium ( pl.: pseudopods or pseudopodia) is a temporary arm-like projection of a eukaryotic cell membrane that is emerged in the direction of movement. Filled with cytoplasm, pseudopodia primarily consist of actin filaments and may also contain microtubules and intermediate ...
entamoeba: [noun] any of a genus (Entamoeba) of amoebas parasitic in vertebrates and including one (E. histolytica) that causes amebic dysentery in humans.
Entamoeba is a genus of Amoebozoa found as internal parasites or commensals of animals. In 1875, Fedor Lösch described the first proven case of amoebic dysentery in St. Petersburg, Russia. He referred to the amoeba he observed microscopically as Amoeba coli; however, it is not clear whether he was using this as a descriptive term or intended it as a formal taxonomic name. The genus Entamoeba ...
