نتایج جستجو برای: 16s rdna باکتریایی خاک
تعداد نتایج: 66775 فیلتر نتایج به سال:
BACKGROUND Simultaneous and rapid detection of multiple foodborne bacterial pathogens is important for the prevention of foodborne illnesses. OBJECTIVE The aim of this study was to evaluate the use of 16S rDNA and 23S rDNA sequences as targets for simultaneous detection of eight foodborne bacterial pathogens. METHODS Nineteen bacterial oligonucleotide probes were synthesized and applied to ...
Phylogenetic analysis based on 16S rDNA sequences revealed that Pseudomonas elongata Humm 1946 is more closely related to the genus Microbulbifer than to authentic pseudomonads. The type strain of P. elongata (DSM 6810(T)) exhibited 16S rDNA similarity levels of 97.5 and 98.2 % to the type strains of Microbulbifer hydrolyticus and Microbulbifer salipaludis, respectively, but of less than approx...
The intestinal bacteria community structure and diversity of the Oriental armyworm, Mythimna separata (Walker) (Lepidoptera: Noctuidae), was studied by analysis of a 16S rDNA clone library, denaturing gradient gel electrophoresis,and culture-dependent techniques. The 16S rDNA clone library revealed a bacterial community diversity comprising Cyanobacteria, Firmicutes, Actinobacteria, Gracilicute...
The diversity of archaeal strains from six hypersaline environments in Turkey was analyzed by comparing their phenotypic characteristics and 16S rDNA sequences. Thirty-three isolates were characterized in terms of their phenotypic properties including morphological and biochemical characteristics, susceptibility to different antibiotics, and total lipid and plasmid contents, and finally compare...
Patel A, et al. Arch Dis Child Educ Pract Ed 2017;0:1–4. doi:10.1136/archdischild-2016-312049 INTRODUCTION PCRs have revolutionised the detection of bacteria in clinical samples since their widespread introduction in the 1990s. Quantitative PCR (qPCR), also known as specific PCR, involves the targeting of particular bacterial species. The technique uses specific primers (short strands of nuclei...
ایران یکی از کشورهای نفت خیز جهان است که هرساله مقادیر زیادی نفت از نقاط جنوبی استخراج نموده و در دیگر مناطق پالایش می کند. مرکز انتقال نفت شهدای تنگ فنی شهرستان پلدختر یکی از مراکز مهم انتقال نفت است که فرسودگی خطوط انتقالی سبب آلودگی خاک و آب این منطقه شده است. به دلیل پایداری بالای ترکیبات نفتی در محیط و اثرت زیانبار آن¬ها بر روی محیط زیست، تلاش برای پاکسازی و اصلاح ترکیبات نفتی در این منطقه...
This study identified nontuberculous mycobacteria (NTM) recovered from bovine pyogenic affections obtained at necropsy using the molecular target 16S-23S rDNA internal transcribed spacer region. Postmortem inspection of cattle was conducted at South Darfur State abattoirs and Alsabalouga Slaughterhouse at Omdurman area during 2007-2009. Specimens were examined for the presence of acid fast bact...
All currently available DNA sequencing protocols rest fundamentally upon the homogeneity of the template. In this paper we describe the parallel DNA sequencing of various templates in one sample by a combination of the Sanger method and MALDI-TOF mass spectrometric analysis of the products. PCR-amplified hypervariable 16S rDNA fragments of the bacterium Escherichia coli DF1020 and cDNA of the 6...
Bacterial leaf blight of rice caused by pathogen Xanthomonas oryzae pv oryzae is a serious pest leading to major loss of rice production world wide. Early detection of pathogen can help in taking necessary precautionary measures to avoid onset and spread of disease. Conventional methods of pathogen identification are laborious, time taking and give inconsistent results. Rapid molecular methods ...
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