Comparative virology by Karl Maramorosch; Edouard Kurstak

By Karl Maramorosch; Edouard Kurstak

Comparative Virology offers an built-in comparability of viruses, in response to their chemical and morphological features. those descriptions won't simply provide the reader a history but additionally an in depth research of a number of the teams. In a few situations the teams are nonetheless host comparable, as relating to bacteriophages and polyhedral insect viruses. In others, for example in pox viruses, the crowd includes viruses of vertebrates and invertebrates. The hosts of the bacilliform Rhabdovirales diversity from guy and different warm-blooded vertebrates via invertebrate animals to vegetation. a different bankruptcy is dedicated to viruses without protein-a crew that's of significant curiosity and that has only in the near past been well-known. in view that there's ancient and useful curiosity in écologie groupings, similar to arboviruses and oncogenic viruses, chapters on such teams have additionally been incorporated.
The booklet opens with a dialogue at the class of viruses. Chapters facing DNA viruses and RNA viruses stick with, and the ecologically and disease-oriented teams whole the amount. it really is was hoping that ""Comparative Virology"" can help carry cohesion to the technological know-how of virology during the comparative procedure that's not depending on virus-host interactions. The mixed efforts of eminent members to debate and overview new details will optimistically gain all who're attracted to virology

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An international classification of viruses does not, will not, and cannot exist. To aspire to found an international nomenclature of viruses on a classification that will never exist is to hinder, forever, any international nomenclature. Further­ more, who has the right to decide if Adanson's principles have the force of law. Gibbs ( 1 969) once again joined the battle against Latinized binomial nomenclature, declaring it to be retrograde. One of the arguments is that not one international periodical publishes the articles on viruses in Latin.

It does not give any information on the possible structural similarities of viruses. But this should not, in any way, prevent us from provisionally accepting the conclusions of Subak-Scharpe and Bellett : viruses of the papilloma group probably originated in animals closely related to their present mammalian host, whereas the herpesviruses and the poxviruses could have originated from bacteria. E. DOUBLET FREQUENCY AND SELECTION The idea has been defended (Subak-Scharpe et al. , 1 966) that the transfer RNA population belonging to an organism is adapted in an optimal way to the translation from the codon sequences of the RNA messenger.

Phages T2, T4, and T6. In Bellett's index ( 1 967c), groups 1 and 2 are related, but groups 2 and 3 are separated by a whole series of viruses : pseudorabies virus, herpesvirus, etc. This would mean that phage T3 is more closely related to herpesvirus than phage T2. The nucleic acids of these phages, as noted by Bellett, differ more by their molecular weight than by the percentage of their nu­ cleic bases. Bellett, quite rightly, considered the grouping as temporary. Nevertheless, the molecular weight of DNA of two uroviruses can present great differences.

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