1887

Abstract

SUMMARY: The genetic properties of transformable (SR 5a) and non-transformable (SR30) streptomycin-resistant streptococci were examined. In mutant SR30, the very high resistance (VHR) phenotype appeared to be due to at least two factors; a high resistance (HR) mutation and an enhancing modifier gene. In mutant SR 5a, resistance was due to a single VHR mutation which is allelic to the HR mutation of mutant SR 30. The transfer of non-trans-formability (Ntr) by SR 30 DNA revealed that this factor is separable from the streptomycin resistance marker and the enhancing modifier. Results indicate co-transfer of Ntr with the HR marker.

Loading

Article metrics loading...

/content/journal/micro/10.1099/00221287-65-2-139
1971-02-01
2019-09-22
Loading full text...

Full text loading...

http://instance.metastore.ingenta.com/content/journal/micro/10.1099/00221287-65-2-139
Loading
This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error