抄録
Sucrose-dependent, spectinomycin-resistant mutations of Escherichia coli responsible for alterations in cytoplasmic membrane and ribosomal proteins were analyzed genetically using a series of λ transducing phages carrying E. coli deoxyribonucleic acid of various lengths from the aroE-rpsL region. Mutations of seven mutants were mapped in three different regions of the ribosomal gene cluster. No spectinomycin-resistance mutation had been mapped previously in these three regions.
