Showing papers on "Mycovirus published in 1977"

Characterization of the RNA Mycovirus Infecting Allomyces arbuscula

Abstract: Summary The mycovirus infecting Allomyces arbuscula has been fractionated into two particle classes designated A and B Particles A have a buoyant density of 1385 g/cm3, in CsCl, a sedimentation coefficient of 75S and contain one major and two minor polypeptides with molecular weights of 34000, 31000 and 28000, respectively Particles B band at 1335 g/cm3, sediment with a value of 67S and, in addition to the three polypeptides as in particles A, they contain seven extra polypeptides, six of which are of lower molecular weights Both particles A and B contain double-stranded RNA which was resolved by electrophoresis on polyacrylamide gels into three components with molecular weights of 14 (major), 25 and 11 × 106 (minor) Both particles also contain single-stranded RNA Particles A contain 27% RNA whereas particles B only contain 14% Evidence is presented that particles A and B belong to the same type of virus and represent two different replicative stages

Adenine-rich RNA in the Mycovirus of Allomyces arbuscula

Abstract: Summary An adenine-rich fraction has been extracted from the mycovirus infecting the Phycomycete Allomyces arbuscula. This fraction which accounts for approximately 8% of the total RNA is heterogeneous and contains tracts of 25 to 45 nucleotides in length. The majority of the poly(A) tracts have a mol. wt. of 1.2 × 104 and a sedimentation value of 2 to 3S.