ISOLATION AND CHARACTERIZATION OF A LARGE CELL POSSIBLY POLYPLOID STRAIN OF ESCHERICHIA COLI

Publisher Website
Google Scholar
Abstract
When cells of a purine-requiring mutant of E. coll were cultivated in an atmosphere of camphor vapors, a stable large cell strain was produced which exhibited no significant change in growth rate of fermentation characteristics from the parent strain. An increase in the dry weight, desoxy-ribonucleic acid and ribonucleic acid content, plus the presence of more chromatin-staining bodies per cell, suggest that the large cell strain is diploid or polyploid. However, comparative frequencies of radiation-induced T1 phage resistance and streptomycin resistance mutations are at variance with the diploid or polyploid hypothesis.

This publication has 26 references indexed in Scilit: