the antimicrobial activity of methanolic extracts from different parts of 11 indigenous wild plantspecies used in traditional medicines of iran were tested against nine species of microorganisms: escherichiacoli, staphylococcus aureus, staphylococcus epidermis, pseudomonas aeruginosa, klebsiella pneumoniae,salmonella typhi, bacillus subtilis, aspergillus niger and candida albicans. the antimicr...

Using a semiautomatic technique for handling large numbers of Escherichiacoli colonies, mutants that fail to digest their cellular RNA were isolated. This was achieved by using multiwell plates where each colony is cloned in an individual well. Cells labeled with a radioactive RNA precursor were starved for a carbon source at a high temperature. In order to assess whether or not degradation of ...

Polymyxin acts as an ultimate line of refuge against the severe infections by multidrug-resistant Gram-negative pathogens. This conventional idea is challenged dramatically by the recent discovery of mobile colistin resistance gene (mcr-1) is prevalent in food animals and human beings worldwide. More importantly, the mcr-1 gene was found to be co-localized with other antibiotic resistance genes...