France finds the new type of rare huge virus

France finds the new type of rare huge virus
According to the 11th of medias of foreign countries, French scientist finds the new type of a kind of huge virus in amoeba's body, its genetic Curry includes the hereditary materials from other species. France end grams of second university, Marseilles of Sri Lankan, infect and appear tropical virus study the intersection of dean and Didel, draw Allt, say newly, this kind of virus " It is a kind of brand-new type " .
It says, such virus called Marseillevirus, the composition composition of its genome " has very great differences with DNA of other virus " to draw Allt ,It and microorganism of other huge virus and bacterium,etc. that depends on for a living amoeba's body have gone on hereditary materials are exchanged. Amoeba is a kind of unicellular organism, it can depend on for a living on mankind or animal, it is equivalent to " The cradle that new virus and bacterium were born " .
The scientist only found the huge virus of so-called small quantity up until now, the first kind was found accidentally in 1993. Different from typical virus, utilize the optical microscope to see huge virus conventionally. In 2008, will be be drawn a scientific research group that Allt led will even find, in order to duplicate oneselfed, this kind of virus will be infected with other virus on purpose. Marseillevirus virus is 368,000 to the basic chromosome group, it is the fifth largest virus once arranged in an order, the diameter is up to 250 nanometers, it is probably equivalent to 1/250 million millimetres.
DNA hereditary material including other huge virus such as the plant, animal material, bacterium of such huge virus. Draw Allt and say: "There is a permanent creation mechanism that is going on in amoeba's body, it produces all components of the new virus, assemble into huge virus, once they develop into the concrete virus, will turn into pathogen. " (Muzi)
|