Deoxyribonucleic Acid Homologies and Ribosomal Ribonucleic Acid Similarities Among Sporeforming Members of the Order Actinomycetales
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چکیده
منابع مشابه
Deoxyribonucleic acid homologies among some Pseudomonas species.
Phylogenetic relationships among a number of strains belonging to the genus Pseudomonas were explored by the use of in vitro deoxyribonucleic acid (DNA) hybridization. The fluorescent nomenspecies (P. fluorescens, P. putida, P. aeruginosa, P. cichorii, P. syringae, and related species), as well as the nonfluorescent species P. stutzeri, P. mendocina, P. alcaligenes, and P. pseudoalcaligenes, we...
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The deoxyribonucleic acid (DNA)-agar method has been employed to demonstrate homologies among the DNA's of several members of the Enterobacteriaceae (B. J. McCarthy and E. T. Bolton, Proc. Natl. Acad. Sci. U.S. 50:156,1963). This work used the extent of reaction (binding) of radiolabeled DNA fragments to a series of DNA-agars as the index of polynucleotide homology. Competition experiments, in ...
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The fraction and distribution of DNA complementary to ribosomal RNA and preribosomal RNA was investigated by the technique of molecular hybridization with the DNA of isolated nucleoli and nuclei of rat liver. Nuclear DNA complementary to ribosomal 18 S RNA and 28 S RNA was 0.014% and 0.032%, respectively. Nucleolar DNA complementary to ribosomal 18 S RNA and 28 S RNA was 0.10% and 0.22%, respec...
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Preceding publications from this laboratory have shown that the methylation of soluble ribonucleic acid is catalyzed by at least six discrete enzymes (l-3) which have been purified from extracts of Escherichia coli W. Two of these enzyme preparations catalyze the formation of l-methylguanine residues in SRNA,1 while a third produces 7-methylguanine. The others catalyze the methylation of uracil...
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The buoyant density of ribosomal DNA is similar in species with or without satellite DNA, and in all species examined was distinguishable from that of the satellite DNA. In melon tissues (Cucumus melo) the percentage satellite DNA is not correlated with the percentage hybridization to ribosomal RNA. Satellite DNA sequences do not appear to be dispersed between those coding for ribosomal RNA. Th...
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ژورنال
عنوان ژورنال: International Journal of Systematic Bacteriology
سال: 1981
ISSN: 0020-7713,1465-2102
DOI: 10.1099/00207713-31-4-420