Search Results - "pathogenicity"

Mexico is the world’s leading producer of avocado (<i>Persea americana</i>); however, its productivity is threatened by various diseases, especially root rot caused by <i>Phytophthora</i>. While <i>P</i>. <i>cinnamomi</i> is the most commonly reported...

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Acinetobacter baumannii is a gram–negative, aerobic, oxidase-negative microorganism, a pathogen that causes serious nosocomial infections, as well as community-acquired pneumonia, especially in people with weakened immunity and multiple organ diseases, all over the world. A. baumannii survives for a...

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Olive anthracnose, caused by Colletotrichum species, is one of the most destructive fungal diseases affecting olive fruit worldwide. With the expansion of olive cultivation into East Asia, including Jeju Island, South Korea, it is necessary to characterize local Colletotrichum populations. This stud...

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Plague agent has a complex of adhesines providing for anchoring of the pathogen to target cells in a host organism and in many ways defining the onset, character, and development of the disease. The presence of adhesines ensures translocation of effector proteins into target cells of mammalians. The...

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The Salmonella pathogenicity islands (SPIs) play crucial roles in the progression of Salmonella infection. In this study, we constructed an improved λ Red homologous recombination system to prepare single and triple deletion mutants of 3 prominent SPIs (SPI-1, 2, and 3), aiming at the impact of dele...

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A molecular  genetic  study  of skin biopsy specimens using the  PCR reaction has done. Investigation of  strains  of  S.aureus, flakes  of  skin epidermis  with inflammatory foci and congruent with the healthy part of erysipelas in patients revealed the most common genetic markers  of pathogenicity...

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Numerous Trichoderma spp. are mycoparasites and commercially applied as biological control agents against a large number of plant pathogenic fungi. The mycoparasitic interaction is host-specific and several research strategies have been applied to identify the main genes and compounds involved in th...

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Yersinia pestis plasminogen activator, a surface protease (Pla) is encoded by species-specific plasmid pPla. This enzyme belongs to outer membrane protein family and has a ß-barrel structure. Pla protease interacts complexly with homeostasis system of a hostorganism and is an important factor of pla...

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The subdivision of the viral population into subtypes and clusters based on the molecular genetic characteristics of the tick-borne  encephalitis virus (TBEV) strains predetermines not only the  differences in the biological properties of these strains, but also their different responses to specific...

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Recent researches established microecological relationships between intestinal, vaginal and nasopharyngeal biocenoses in the composition of a macroorganism microbiome. This study included 57 women with chronic endometritis and 21 woman without it (control group). In women with chronic endometritis a...

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Radopholus similis (Cobb 1893) Thorne (1949) is a destructive migratory endoparasitic plant nematode. In this study, the pathogenic process of R. similis infection in Nicotiana benthamiana (tobacco) was studied using quartz sand culture in laboratory. The results showed that R. similis mainly parasi...

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Frequent occurrence of opportunistic microflora in different hydrobionts and water of the Volga-Caspian region was revealed, the representatives of the family Enterobacteriaceae, Vibrionaceae и Pseudomonaceae were predominants. They had features of pathogenicity and plural antibiotic resistance. The...

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Durum wheat (Triticum durum Desf) is one of the most important cereal crops in Algeria. During the agricultural season 2021-2022, typical symptoms of Fusarium Head Blight were observed in wheat fields in the Setif region. One of the causal agents was identified on the basis of morphological charact...

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To prevent the vesicular stomatitis virus (VSV) disease, using a panel of recombinant VSV (E1764A, S1827A, Y1650A, and F1691A) that were defective in mRNA cap methylation as vaccine to inoculate five-week-old BALB/c female mice through oral route with 1×10⁶ PFU, the pathogenic...

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In southern China, snakes have cultural and economic significance, serving both as traditional dietary resources and as increasingly popular pets. However, the prevalence and clinical impacts of Cryptosporidium spp. in snakes in southern China remain poorly understood. Between April 2018 and Septemb...

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Campylobacter species are a major cause of foodborne bacterial infections in both developed and developing countries worldwide. Campylobacter jejuni is responsible for the majority of infections. This study was conducted to identify virulence-associated genes in Campylobacter species isolated from l...

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Pea seed lots (144) from Australian farms and research trials were assessed for pea seed-borne mosaic virus (PSbMV) seed transmission rates. High infection rates (up to 40%) were detected, particularly in the widely grown and highly PSbMV susceptible variety ‘Kaspa’, with only 12 out of 54 seed lots...

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Developed is the PCR assay for the detection of the structural genes of toxin co-regulated adhesion piluses - tcpA of different types. Determined are the universal primers, the usage of which provides for the detection of the stated above genes in V. cholerae of various serogroups. With the help of...

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Live vaccines induce both cellular and humoral immunity and are cheap and easy to use. The induction of immunity is provided through the reproduction of the vaccine strain in the host body without the development of the disease, since the bacterium to which it is necessary to induce the immunity is...

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Using polymerase chain reaction 316 strains of E. coli (strains with normal enzymatic activity, strains with weak enzymatic activity and strains with hemolytic activity) were examined for the presence of pathogenicity genes. They were isolatedfrom healthy children and children with functional disord...

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