نتایج جستجو برای: pathogenicity test
تعداد نتایج: 829058 فیلتر نتایج به سال:
The exosubstance of Rhodococcus equi in a prepurified form strongly enhanced the hemolytic effect of certain strains of Listeria monocytogenes. The strains which produced positive synergic hemolysis with this exosubstance were also pathogenic for guinea pigs and white mice. The other strains, which remained nonhemolytic in the presence of the R. equi. exosubstance, were apathogenic for those an...
Leaf spot was found on field bindweed (Convolvulus arvensis L.) in Shihezi City, Xinjiang Province, China, during the summer of 2015. Pathogens were isolated from the infected leaves of field bindweed and identified as Aspergillus niger based on morphological and molecular analyses (internal transcribed spacer rDNA and β-tubulin gene). A pathogenicity test confirmed that Aspergillus niger cause...
Background: Fusarium wilt in lentil (Lens culinaris L.) infected by oxysporum is considered as one of the major biotic factors for low productivity lentil. The present study was conducted to determine nine isolates (W1-W8 and W10) which were isolated from different growing fields West Bengal, India characterized their physio-morphological, biochemical molecular traits vitro. Methods: Nine plant...
Laboratory investigations into the amphibian chytrid fungus, Batrachochytrium dendrobatidis (Bd), have accelerated recently, given the pathogen's role in causing the global decline and extinction of amphibians. Studies in which host animals were exposed to Bd have largely assumed that lab-maintained pathogen cultures retained the infective and pathogenic properties of wild isolates. Attenuated ...
conclusions the results of this study suggest that e. hebecarpa extracts can be used to inhibit the planktonic and biofilm forms of these selected bacteria. objectives in an effort to combat these industrial and medical bacterial biofilm problems, our study aims to determine the antimicrobial effect of euphorbia hebecarpa. materials and methods the inhibition efficiency of alcoholic extracts on...
Out of the five members of the Ebolavirus family, four cause life-threatening disease, whereas the fifth, Reston virus (RESTV), is nonpathogenic in humans. The reasons for this discrepancy remain unclear. In this review, we analyze the currently available information to provide a state-of-the-art summary of the factors that determine the human pathogenicity of Ebolaviruses. RESTV causes sporadi...
objective: serological diagnosis of infectious haematopoietic necrosis virus (ihnv) in tissues of kidney, spleen and liver of rainbow trofi(o.mykiss)fry. design: cross- sectional study. animals:ninty nine samples consisting of smears from kidney, spleen and liver were obtained from rainbow trout. procedure: kidney, spleen and liver from rainbow trout (o.mykiss) fry less than 3 g body weight obt...
BACKGROUND Avian influenza viruses have caused human infection and posed the pandemic potential. Live poultry markets are considered as a source of human infection with avian influenza viruses. Avian influenza routine surveillance of live poultry markets is taken annually in China. We isolated the 2 H11N9 influenza virus from the surveillance program. To better understand the risk caused by the...
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