✍ Scribed by Kevin W. Prudence; Anthony Katz; J. Ann Sugrue; Jennifer A. Thomson
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
The influence of COz on the formation of a-amylase by Bacillus subtilis NCIB 8646 growing in continuous and batch cultures was investigated. Different levels of COz examined in the batch cultures stimulated the formation of a-amylase, with the highest activity being obtained using 6% COZ (v/v). The
Escherichia coli K12 Hfr H Tsxs Strs and F- Pro- Tsxr His- Arg- Strr bacteria were conjugated in the absence of arginine with or without glucose. The efficiency of conjugation, measured by the frequency of Pro+ and His+ recombinants was not affected. Arginine starvation alone did not affect the tsxs
We have constructed a pBR322 plasmid derivative which expresses dnaA protein under the control of the E. coli lac UV5 promotor. Expression of the dnaA protein from the plasmid is inducible by isopropyl-beta-D-thiogalactoside. In a dnaA+ strain induction has no effect on the accumulation of DNA. In c
The effects of different feeding conditions on amylase and c~-gtucosidase activities were studied in larvae and flies of Drosophila melanogaster homozygous for different amylase alleles. Starch generally enhances amylase activities in both strains, but the ultimate effect depends on other component