mimivirus


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mimivirus

(mĭm′ĭ-vī′rəs)
n. pl. mimivi·ruses
Any of a genus of double-stranded DNA viruses that are the largest of all known viruses.

mimivirus

(mĭ′mĭ-vī″rŭs) [Fr. mimi(c) + ″]
A massive double-stranded DNA virus, first identified in an ameba in 2003, so large that it appears to be a bacterium when seen under light microscopy. It has been identified in some patients with pneumonia.
References in periodicals archive ?
The discovery of Mimivirus [44] that belongs to the nucleocytoplasmic large DNA viruses (NCLDV) and the following discoveries of other giant DNA viruses (giruses) [45], for example, the Pandoravirus with a genome size exceeding some of the cellular organisms [46], invoked questions on if a "fourth domain" should be added to the tree of life [46, 47] and potentially important roles that viruses played in eukaryogenesis [48].
Years later, the discovery of a few viruses resembling Mimivirus led researchers to believe that all giant viruses might belong to a single family.
It has more than 1,000 genes and its genome is 6.5 per cent larger than the DNA code of the Mimivirus.
Like Mimivirus, Megavirus has hair-like structures, or fibrils, on the exterior of its shell, or capsid, that probably attract unsuspecting amoebas looking to prey on bacteria displaying similar features.
The recent discovery that the virus factory of Mimivirus can be infected by another virus (Sputnik) has also been taken as an argument in favor of the living nature of viruses (La Scola et al.
Un caso interesante que ejemplifica el avance en las tecnicas de cultivo para la deteccion de agentes emergentes es la reciente caracterizacion de un virus denominado mimivirus. Este virus tiene caracteristicas muy particulares en cuanto a su tamano y sus requerimientos para ser aislado y' detectado por tecnicas in vitro; el virus es un agente causal importante de neumonia, y fue encontrado gracias a la utilizacion de amibas como un medio selectivo para detectar microorganismos (principalmente bacterias) con requerimientos especificos que solo se encuentran en una ambiente intracelular (La Scola et al., 2003).
An international group of specialists in infectious diseases discuss newly recognized diseases, previously known pathogens that present new challenges, and domestic and international threats, including the 2009 flu pandemic in Australia, the reemergence of human adenovirus 14, acanthanmoeba polyphaga mimivirus, the global impact of hepatitis E, human T-lymphotropic virus 1 in indigenous populations in Australia, cytomegalovirus infection in transplant recipients, HIV-associated malignancies, the global spread of multidrug-resistant gram-negative bacilli, sepsis in sub-Saharan Africa, neglected tropical diseases, infections in long-term care facilities and mobile populations, infectious plant diseases, and the One World-One Health initiative.
* 1/2 micrometro es el diametro del <<gigantesco>> Mimivirus, descubierto en 1992.
Ejemplo de ello es el avance tecnologico, lo cual ha hecho posible la identificacion de agentes infecciosos como el virus de la hepatitis C, que resulto ser el principal agente etiologico de las hepatitis no causadas por los virus de hepatitis A y B (1), Los metodos de biologia molecular y la modificacion de medios y tecnicas de cultivo han propiciado el descubrimiento de dos nuevos virus causantes de infecciones respiratorias, el mimivirus y el metaneumovirus (2, 3).
Ahora, el descubrimiento de los llamados mimivirus que son parasitos del protozoo Acanthamoeba polyphaga puede forzar una nueva revision del concepto, porque el marco teorico tradicional no permite su insercion.
Dubbed Megavirus chilensis, the beastie's genetic blueprint is 6.5 percent larger than that of Mimivirus, the previous record holder, researchers led by Jean-Michel Claverie of Aix-Marseille University in France report in the Oct.
The pathogen's genome contains approximately 730,000 base pairs making it the largest known marine virus, and the second largest known virus, after the fresh water-borne Acanthamoeba polyphaga mimivirus, which weighs in at 1.2 million base pairs.