نتایج جستجو برای: pcr rapd
تعداد نتایج: 178849 فیلتر نتایج به سال:
سابقه و هدف: راه های تشخیص باکتری e. coli، کشت، روش های سرولوژی و ملکولی می باشد. در روش مولکولی با استفاده از پرایمرهای کوچک تصادفی، اقدام به تولید محصولات pcr می گردد. هدف از مطالعه حاضر، بررسی تنوع ژنتیکی در باکتری های اشریشیاکلی می باشد. هم چنین با استفاده از دو سویه شایع enteropathogenic e. coli (st.1) و enterohaemorrhagic e. coli (st.2)، میزان قرابت باکتری های جداسازی شده با این دو سویه ن...
anopheles fluviatilis complex is known to be a vector of malaria in iran. since mosquitoes of this species cover a wide geographical range in iran, they might have evolved into different separated populations. random amplified polymorphic dna polymerase chain reaction (rapd-pcr) assay was used to differentiate geographic populations of this species. dna was extracted from individual mosquitoes ...
Campylobacter jejuni is one of the most common causes of bacterial diarrhea worldwide and is the primary bacterial cause of food-borne illness. Adherence to and invasion of epithelial cells are the most important pathogenic mechanisms of Campylobacter diarrhea. Molecular characterization of invasive and noninvasive Campylobacter isolates from children with diarrhea and symptom-free children was...
We optimized RAPD techniques by increasing the length of RAPD primers and performing a strict screening of PCR annealing temperature to distinguish 60 sweet orange cultivars from the Research Institute of Pomology at the Chinese Academy of Agricultural Sciences. A new approach called cultivar identification diagram (CID) was used to improve the efficiency of RAPD markers for cultivar ident...
The presence of Azotobacter sp. in soils has beneficial effects on plants, but the abundance of these bacteria is related to many factors, especially soil pH and fertility. The presented study evaluated the abundance of Azotobacter sp. in various soils of southern Poland and confirmed the relationship between soil properties and the presence of these bacteria. Diagnostic tests indicate that all...
fusarium verticillioides (f. verticillioides) is not only a primary pathogen of maize, but also can causedisease in other crops such as sorghum. pathogenicity is related to mycotoxin production such as fumonisin.in the present study, 24 isolates of f. verticillioides, which were previously identified by phenotype basedmethods, were re-identified using restriction fragment length polymorphism (r...
Cassia angustifolia Vahl. is native to Saudi Arabia. This shrub has been used as a laxative and even fungicide. The current study was designed evaluate the morphology molecular characterization of plants from two areas in Purified genomic DNA subjected PCR amplification using random primers (RAPD). showed that, all morphological parameters were statistically significant (P ≤ 0.05) when compa...
Abstract The principle and the techniques applied in DNA extraction play a pivotal role obtention of purified genetic material. present study investigates efficiency eight protocols Hypostomus commersoni, an essential component South American freshwater ichthyofauna. quality samples was assessed through spectrophotometry, gel electrophoresis, PCR-RAPD markers amplification. influenced both by m...
Research to determine patterns of genetic differentiation among and within field populations of Crom.um quercuum f. sp.firsifome using RAPD markers is currently underway in the molecular genetics laboratory at the Southern Institute of Forest Genetics. Fungal tissue was collected as a drop of spermatia or scrapings of a discrete hymenium fiom a single gall on each tree sampled at a location. Co...
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