bacteremia is an important infectious disease which may lead to death. common bacteria and pattern of antibiotic resistance in different communities are different and understanding these differences is important. in the present study, relative frequency and pattern of drug resistance have been examined in bacteria isolated from blood cultures in razi hospital laboratory. the method of the study...

materials and methods lactic acid bacteria isolated from spoiled fruits and vegetables and grown in mrs medium were screened against multi-drug-resistant candida albicans, klebsiella pneumoniae, pseudomonas aeruginosa, escherichia coli, and enterococcus fecalis. results fifty-four lactic acid bacteria were isolated from spoiled fruits and vegetables, of which 11 gram-positive and catalase-negat...

molecular experiment was conducted to confirm resistant to aryloxyphenoxypropionate herbicides in winter wild oat (avena ludoviciana duriu.) populations of wheat fields in khuzestan province, at faculty of agriculture of ferdowsi university, during year of 2006. first, 44 wild oat populations from ahvaz, andimeshk, shush, shushtar, ramhormoz, susangerd, and dezful cities with a susceptible popu...

Fifty E. coli strains isolated from chicken flocks were analyzed to determine their resistance to antimicrobial agents used in Tehran poultry industry. By using Mast Diagnostic kit only O6 serotype was identified. Multiple resistance to antibiotics was observed in all isolates. The highest rate of resistance was against Tetracycline (94%), followed by Rifampicin (90%), and Oxytetracycline (80%)...

Selectable marker genes are vital to the research and development of genetically modified (GM) crops. The methods used to introduce foreign DNA in a plant cell, either by microinjection, particle gun, electroporation or Agrobacterium, are relatively inefficient. Pinpointing cells that successfully incorporated foreign DNA in an ocean of nontransformed cells is akin to finding a needle in a hays...

Presence of antibiotic resistance markers has always been considered as one of the main safety concerns in transgenic plants and their derived products. Elimination of antibiotic selectable markers from transgenics is a major hurdle for finding efficient and safe candidates. Herbicide tolerance genes might be attractive alternatives. In this study, a variant form of the 5-enoylpyruvyl shikimate...