Mutantes resistentes à Antibióticos em Xanthomonas Campestris (Fammel) Dowson

摘要: The present paper deals with study of mutants resistants against five antibiotics in a phytopathogenic bacterium Xanthomonas campestris (Pammel) Dowson. One-step to streptomycin and erythromycin were isolated. For the penicillin, aureomycin chloranphenicol multiple-step appeared sensitive populations grown gradient plates antibiotics. resistance increase was 4 fold for 8 chloranphenicol, 32 aureomycin; 16 128 streptomycin. It not found cross or collateral sensitivity when certain antibiotic tested others drugs.