Sugarcane borer, Diatraea saccharalis (F.), is a major target of Bt maize in South America and many areas of the US mid-south region. Six laboratory strains of D. saccharalis were established from six single-pair F(2) families possessing major resistance alleles to Cry1Ab maize hybrids. Susceptibility of the six strains was evaluated on diet treated with each of four purified trypsin-activated ...

results the most effective agent against the studied isolates was colistin. by cddt, it was found that among 278 imipenem resistant p. aeruginosa strains, 178(64.02%) were mbl producers. the blaimp-1 and blavim-1 genes were detected in 30(16.8%) and 52(29.2%) of p. aeruginosa isolates, respectively. result of 187 imipenem resistance a. baumannii strains showed that 85(45.4%) were mbl producers....

background: influenza virus is a major infectious pathogen of the respiratory system causing a high degree of morbidity and mortality annually. the worldwide vaccines are decided and produced annually by world health organization and licensed companies based on the samples collected from all over the world. the aim of this study was to determine phylogenecity and heterogenecity of the circulati...

Many organisms produce lactic acid by fermentation, but most industrially important strains are from the genus Lactobacillus and Rhizopus oryzae. L(+)-Lactic acid is the only optical isomer for use in pharmaceutical and food industries because human body is only adapted to assimilate this form. In this research, six strains of Lactobacillus and four strains of R. oryzae (known as high producer)...

We examined phenotypic characteristics of six mannitol-fermenting strains of Streptococcus bovis, including two unusual CO2-requiring strains isolated from koala feces. These strains did not grow in air, but grew in air supplemented with CO2 and under reduced oxygen conditions. All six strains had the same biochemical characteristics, except that the CO2-requiring strains did not produce beta-N...

Aims of this study were to investigate on antibiotic resistance and molecular epidemiology of K.pneumoniae producing ESBLs isolates of respiratory tract infections in some major hospitals in Iran. K.pneumonaie were obtained of patients with RTI. K. pneumoniae producing ESBLs detected by screening, confirming and PCR methods. During the 12-month period, a total of one hundred and thirteen of K.p...

DEAR EDITOR, Iranian traditional medicine (ITM) is a medical system that is based on temperament; the main objective in ITM managements during health and disease is returning and maintaining the human being to an equilibrium in which the organ systems works at their optimal status. The life style rules in ITM are mainly focused on six most essential items: “Setah Zaroriah”; within them one of t...

a total number of 218 cerebrospinal fluids obtainedfrom children with aseptic meningitis iii tehran , were studied by attempts at virus isolation. all specimens were inoculated at least into three different cell systems. this investigation ended in isolation of 37 strains of viral agent, which are divided as following: 2 strains of poliovirus, 11 strains of coxsackie b virus, 8 strains of echov...

background: organisms producing ctx-m-β-lactamase are emerging around the world as a source of resistance to oxyiminocephalosporins such as cefotaxime. however, the laboratory detection of these strains is not well defined. the aim of this study was to determine the presence and prevalence of known ctx-m-β-lactamases genes in clinical isolates of  escherichia coli from hospitals of tehran. meth...

The diamondback moth, Plutella xylostella has been developed resistance to many groups of pesticides including of pyrethroids. The present study was conducted to evaluate the toxicity of deltamethrin on the third instar larvae of six populations of the pest using leaf dipping method. The results showed that different populations had different susceptibilities to deltamethrin. At the LC50 level,...