Barley (Hordeumvulgare L.) is one of the most important cereal crops in world. Powdery mildew on barley, which caused by pathogen Blumeria graminis f. sp. hordei, occurs world-wide and can result severe yield loss. Thousands barley accessions are stored national gene banks, their characterization for breeding purposes needed. This study was conducted to determine resistance powdery 33 landraces...

We have previously demonstrated that the replacement of the S gene from an avirulent strain (Beaudette) of infectious bronchitis virus (IBV) with an S gene from a virulent strain (M41) resulted in a recombinant virus (BeauR-M41(S)) with the in vitro cell tropism of the virulent virus but that was still avirulent. In order to investigate whether any of the other structural or accessory genes pla...

as the host plants based on their physical and chemical characteristics can affect virulence of microbial control agents on the target pest and its natural enemies, therefore in the current study, the virulence of beauveria bassiana tv isolate at concentration 107 conidia/ml was evaluated against t. urticae female adults, on three different host plants; tomato, cucumber and strawberry. spray to...

OBJECTIVES A Salmonella enterica serovar Infantis isolate of avian origin was investigated for the presence of the gene qnrS, its transferability and its association with other resistance genes. METHODS The Salmonella Infantis isolate was investigated for its susceptibility to antimicrobial agents and its plasmid content. Hybridization experiments and PCR assays were performed to identify the...

Background: Many plant growth-promoting bacteria including Rhizobia contain the 1-aminocyclopropane-1-carboxylate (ACC) deaminase enzyme that can leave ACC, and thereby lower the level of ethylene in stressed plants. Drought and salinity are the most common environmental stress factors for plants in Iran. Objectives: The main aim of this research was development of bio-fertilizers containing A...

The avirulent Salmonella typhimurium F885 was transformed with a plasmid carrying the cloned S fimbriae genes of a uropathogenic Escherichia coli. The resulting transformant (F885-1) produced efficiently E. coli S fimbriae and was used for live oral vaccination of rats. For comparison rats were immunized subcutaneously with isolated S fimbriae. Both routes of vaccination resulted in a significa...

The emergence of carbapenem-resistant Klebsiella pneumoniae (CRKP) co-carrying multiple carbapenemases is complicating clinical treatment. This study aimed to investigate the global dissemination trends CRKP strains that co-carry carbapenemases. isolate KP424 blaNDM-1 and blaKPC-2, recovered from a stool specimen, was identified by NG-Test Carba 5 test, genome sequence further determined using ...