No abstract available
MeSH terms
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Anti-Bacterial Agents / pharmacology
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Carbenicillin / pharmacology
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Conjugation, Genetic*
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Crosses, Genetic
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Culture Media
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Deoxyribonucleases / pharmacology
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Escherichia coli / drug effects
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Extrachromosomal Inheritance*
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Mutagens
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Nitrosoguanidines
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Nitrous Acid
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Penicillin Resistance*
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Recombination, Genetic
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Rhizobium / cytology
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Rhizobium / drug effects*
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Spheroplasts
Substances
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Anti-Bacterial Agents
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Culture Media
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Mutagens
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Nitrosoguanidines
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Deoxyribonucleases
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Carbenicillin
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Nitrous Acid