Fish health and the aquatic ecosystem are strongly interwoven interrelated. The receives a range of anthropogenic chemicals which have toxicological or lethal effects on animals. aim this study was to determine level induced mutation genomic stability different sub-lethal doses (25%, 50% 75% LC50) heavy metal [Nickel (Ni), Mercury (Hg), Lead (Pb)and Zinc (Zn)] in Clarias gariepinus (Burchell, 1...

This study was designed to determine the molecular characteristics and antimicrobial resistance of enterococcal strains isolated from patients admitted to an Iranian Hospital. Enterococcal strains were isolated from the burn patients. All strains were screened for genes encoding resistance to aminoglycoside [aac(6')-Ie-aph(2'')-Ia, aph (3'), ant (4')], resistance to vancomycin (vanA, vanB), res...

The random amplified polymorphic DNA (RAPD) technique has been used widely for purposes such as the construction of linkage maps, QTL analysis, evaluation of genetic diversity, and parentage tests. However, some minor bands of RAPD display a low reproducibility and low reliability. We describe a simple and efficient method for making minor RAPD bands clearer. The first step of this method is to...

background and objective: shigella species belong to the family enterobacteriaceae, which cause dysentery with abdominal pain and tenesmus in human. our country is one of the endemic and occasional epidemic areas of the disease. in the present study, repetitive extragenic palindromic polymerase chain reaction (rep-pcr) technique that has high differentiation and specificity power compared to ph...

conclusions according to the findings of our study, there were diverse and high-level resistant p. aeruginosa strains in the major burn center in khuzestan. therefore, we faced troubles controlling the diverse p. aeruginosa clones in the burn patients. methods in a cross sectional study, a total of 75 strains of p. aeruginosa were isolated from burn patients at taleghani hospital, which is the ...

The polymerase chain reaction (PCR) based random amplified polymorphic DNA (RAPD) assay, morphological, physiological, biochemical and antimicrobial susceptibility test methods have been evaluated for use in the taxonomy of isolated thermotolerant Bacillus from Jordanian hot springs, with specific reference to strains Geobacillus stearothermophilus (ATCC 12980), Bacillus circulans (ATCC 4513) a...

Anopheles (Nyssorhynchus) marajoara is a proven primary vector of malaria parasites in Northeast Brazil, and An. deaneorum is a suspected vector in Western Brazil. Both are members of the morphologically similar Albitarsis Complex, which also includes An. albitarsis and an undescribed species, An. albitarsis "B". These four species were recognized and can be identified using random amplified po...

forty monoconidial isolates of magnaporthe grisea were examined, for an identification of vegetative compatibility group and a characterization of genetic diversity, using rep-pcr genomic fingerprinting. the isolates were collected from weeds digitaria sanguinalis (crabgrass), setaria italica (foxtail millet), echinochloa crus-galli (barnyard millet), and some other unknown ones during 2003 - 2...