An improved spheroplast assay for lambda-DNA and the influence of the bacterial genotype on the transfection rate.

Centrifugation, Density Gradient Coliphages/isolation & purification Cyanides/pharmacology DNA, Bacterial/pharmacology DNA, Viral/analysis,isolation & purification Deoxyribonucleases Dextrans Edetic Acid/pharmacology Escherichia coli/drug effects,enzymology Genetics, Microbial Glycols Kinetics L Forms Methods Muramidase/pharmacology Mutation Phenols Polyethylenes Recombination, Genetic Spheroplasts Sulfuric Acids Transduction, Genetic

Cyanides DNA, Bacterial DNA, Viral Dextrans Glycols Phenols Polyethylenes Sulfuric Acids Edetic Acid Deoxyribonucleases Muramidase