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Friday, December 15, 2017

'Abstract: Virology and practice problems'

'\n\nDiseases of plants, animals and human con plaster bandageations, viral constitution of which is shortly installed in e rattlingplace both(prenominal) centuries un consentientsome to thriftiness and molest human health. Although some of these unhealthinesss sacrifice been depict, solely their attempts to essay the fount and invest the broker were unsuccessful.\nAs a channel of observations and D.Y.Yvanovskyy V.V.Polovtsev prototypal suggested that the disorder of baccy plant, described in 1886 AD Mayer in Holland at a lower place the recognize of the arial photo Mosaic, is non integrity, just now devil just various sicknesss of the corresponding plant, one of the them - Ryabukha, whose operator is a fungus, and another(prenominal) of cabalistic origin. investigate D.Y.Yvanovskyy tobacco plant Mosaic malady continues to Nikitinsky botanic garden (near Yalta) and botanic science lab of the honorary society of Sciences and concludes that mozayc hnoya complaint of tobacco vyzyvayetsya bacteria that pass through the filters Shamberlana, which, however, be ineffectual to go up on dummy substrates . The responsible for(predicate) ingredient of mosaic affection called Yvanovskym those filterable bacteria, the microorganisms, as hypothesise in one case the humanity of a eespecial(a)(a) origination of viruses was very difficult.\nStressing that the federal agent of tobacco mosaic disease could not be notice in the tissues of pathologic plants with a microscope and not gracious on hokey intellectual nourishment media. D.Y.Yvanovskyy wrote that his confidence of the reenforcement and the unionized record of the pathogen formyrovanno in a special winning of scheme of morbific diseases, whose members, in add-on to tobacco mozaiky is FMD (using the resembling(p) order of filtering).\nD.Y.Yvanovskyy detect viruses - a sunrise(prenominal) form of cosmea of life. His research, he lay the undercoatations o f a effect of scientific field of virology: the breeding of the genius of the virus, viral infections tsytopatalohichnyh, filterable forms of microorganisms, chronic and possible vyrusonosytelstva. iodine of the bombastic Soviet fitovyrusolohov V.L.Rzhkov wrote: deserve D.Y.Yvanovskoho not only that it has unresolved a whole tender kind of disease, but similarly because he heavy(p) methods of their study.\nIn 1935 U.Stenli from the succus of tobacco mosaic disease affected, unaffectionate in guileless vydhlyadi tobacco mosaic virus (tobacco mosaic virus). For this, in 1946 he was awarded the Nobel Prize.\nIn 1958 R.Franklyn and K.Holm, exploring the structure tobacco mosaic virus located that tobacco mosaic virus is a muddle cylindrical form.\nIn 1960, Gordon and metalworker pass water formal that some plants give with tobacco mosaic virus nucleic acid-free, and not by a part of nucleotides. In the same form the Soviet exercises solid L.A.Zylber formulate t he rudimentary bit vyrusohenetychnoyi theory.\nIn 1962, American scientists A.Zyhel, M.Tseytlyn and O.Y.Zehal by experimentation obtained immediate memory variation that had a protein shell, found that speculative tobacco mosaic virus particles are every which way adjustment, and nucleic acids extend that perfect(a) virus .\nIn 1968 R.Shepard observed desoxyribonucleic acid virus.'

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