Arginine regulon control in a Salmonella typhimurium-Escherichia coli hybrid merodiploid

✍ Scribed by Kelln, Rod A. ;Zak, Victor L.

• Book ID: 104725453
• Publisher: Springer
• Year: 1978
• Tongue: English
• Weight: 262 KB
• Volume: 161
• Category: Article
• ISSN: 0026-8925
• DOI: 10.1007/bf00331009

✦ Synopsis

The regulation of synthesis of arg enzymes was studied in a hybrid merodiploid in which an episome of Escherichia coli carrying the argR+ allele was transfered to Salmonella typhimurium argR strain. The arg enzyme levels of the hybrid merodiploid were compared to that found in argR and argR+ haploids of S. typhimurium. The results showed that repression of synthesis of arg enzymes was effected through the introduction of the E. coli argR+ allele but significant quantitative differences of arg enzyme levels in the argR+ haploid and the hybrid merodiploid were observed.