نتایج جستجو برای: strain analysis
تعداد نتایج: 2995230 فیلتر نتایج به سال:
a pseudomonas aeruginosa mutant derived by random mutagenesis with n-methyl-n¢-nitro-n-nitrosoguanidine, producing high levels of the rhamnolipid biosurfactants was selected on siegmund-wagner (sw) plates. the mutant designated p. aeruginosa ptcc1637 produces rhamnolipids at concentrations 10 time more than parent strain. nmr analysis and surface tension measurement showed that the biosurfactan...
Objective(s): Bdellovibrio-and-like organisms (BALOs) are predatory prokaryotes that attack and kill other Gram-negative bacteria for growth and reproduction. This study describes the isolation, identification, biological properties, and bacteriolytic activity of the first Bdellovibrio bacteriovorus with a broad prey range from Iran.Materials and Meth...
Introduction: Nurses as the major group of health service providers need to have the satisfactory mental health in order to give desirably care for the patients. Therefore this study was done aimed to predict of psychological strain based on perceived work difficulty, occupational hardiness and spirituality among nurses working in hospitals of Malayer. Methods: The research was descriptive a...
an experiment was conducted to determine the differences in body weight (bw), feed intake (fi) and some egg production traits of two strains of layer chickens (isa brown and nera black) and correlate the relationships between the tested traits. the study commenced when the layers were 26 weeks old and a total of 200 (100 of each strain) were used. sixty fresh eggs (30 from each strain) were col...
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