نتایج جستجو برای: herbicide and antibiotics resistance
تعداد نتایج: 16903831 فیلتر نتایج به سال:
The emergence of herbicide-resistant weeds is a major threat facing modern agriculture. Over 470 weedy-plant populations have developed resistance to herbicides. Traditional evolutionary mechanisms are not always sufficient to explain the rapidity with which certain weed populations adapt in response to herbicide exposure. Stress-induced epigenetic changes, such as alterations in DNA methylatio...
Introduction & Objective: One of the mechanisms of antibiotic resistance in gram negative bac-teria, particularly Klebsiella pneumonia strains, is the production of Extended-Spectrum β lactamase enzymes (ESBLs). Encoding genes of ESBLs are usually located on the plasmid and they are able to transfer to other gram-negative bacteria. Thus, due to the importance of resistance pattern recogniti...
Herbicide resistance is a ubiquitous challenge to herbicide sustainability and a looming threat to control weeds in crops. Recently four genes were found constituently over-expressed in herbicide resistant individuals of Lolium rigidum, a close relative of Lolium multiflorum. These include two cytochrome P450s, one nitronate monooxygenase and one glycosyl-transferase. Higher expressions of thes...
prevalence of metalo- β-lactamase-producing (mbl) acinetobacter species in a tertiary care hospital.
background and objectives: acinetobacter causes a wide variety of illness in debilitated and hospitalized patients. carbapenem resistance in acinetobacter is an emerging problem and is a cause of concern as many nosocomial infections with acinetobacter are resistant to most other antibiotics. the present study was aimed to study metallo-β-lactamase (mbl) production in acinetobacter species. mat...
In a previously reported model study, sugarcane was genetically engineered with the pat gene conferring resistance to the herbicide Buster®. The sugarcane cultivar used in that work was NCo310, which is no longer grown commercially but responds well to tissue culture and transformation. The field performance of the herbicide resistant sugarcane was assessed and stable transgene expression obser...
The present study was aimed to evaluate the antimicrobial resistance and the presence of antibiotic resistance genes in Vibrios spp. isolated from seafood. A total of 72 isolates of Vibrio in 6 species including V. parahaemolyticus, V. vulnificus, V. alginolyticus, V. harveyi, V. mimicus and V. cholerae were examined. The results revealed that all isolates were expressing multiple an...
Abstract Background and Objective: Resistance of Helicobacter Pylori (H. pylori) to antibiotics is the main cause of relapse into Helcobacterial infections. With the use of several antibiotics that have synergistic effect, we can inhibit this antibiotic resistance. Thus, we aimed at determining resistance patterns and assessing the synergy of combining multiple antibiotics on H. pylori. ...
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