several heavy metal resistant bacterial strains were isolated from sediment and water samples collected from the persian gulf and enclosed industrial areas. all the isolated bacteria were identified by 16s rrna gene sequencing. isolated bacteria were tested for the presence of plasmids using the modified alkaline lysate method. the method was effective for identification and characterization of...

arsenic is one of the most dangerous heavy metals in the environment that is harmful for organisms such as human beings. due to this treat economic approach for elimination of arsenic from water and wastewater is necessary. in this research arsenic-resistant bacteria from water and sediments of lake maharloo were isolated and identified then their antibiotic resistance was evaluated. sampling w...

although some venoms and their isolated compounds have been shown to have antibacterial properties, most have not been investigated for such activity. echis carinatus is one of the most venomous snakes in the world and has an effective haematotoxic venom that destroys endothelial cells and causes haemorrhagia. in this study, the antibacterial activity of iranian snake echis carinatus venom agai...

The study was undertaken to determine bacterial contamination of warm-water fish ponds and silver carps harvested from those ponds in Guilan province, Iran. In this respect, water samples were taken from 7 ponds and investigated by testing total bacteria, coliforms, and Escherichia coli. In addition, skin swab samples of silver carps caught from each pond were studied for enumeration of the sam...

background & objectives: antisense peptide nucleic acids (pna) that target growth essential genes show potent bactericidal properties without cell lysis. we considered the possibility that whether pna treatment influence the bacteria total nucleic acids content and apply approach to develop a new delivery system to dendritic cells (dcs). dcs are the most potent antigen presenting cells in t...