نتایج جستجو برای: rrna 16s

تعداد نتایج: 35866  

Journal: :Journal of bacteriology 1998
P P Dennis S Ziesche S Mylvaganam

The genome of the halophilic archaeon Haloarcula marismortui contains two rRNA operons designated rrnA and rrnB. Genomic clones of the two operons and their flanking regions have been sequenced, and primary transcripts and processing intermediates derived from each operon have been characterized. The 16S, 23S, and 5S genes from the two operons were found to differ at 74 of 1,472 positions, 39 o...

Journal: :International journal of systematic and evolutionary microbiology 2006
Joann L Cloud Jay J Meyer June I Pounder Kenneth C Jost Amy Sweeney Karen C Carroll Gail L Woods

Several Mycobacterium-like organisms related to the Mycobacterium terrae complex have been isolated from clinical samples. In the clinical microbiology laboratory, partial 16S rRNA gene sequencing (approximately the first 500 bp) rather than full 16S rRNA gene sequencing is often used to identify Mycobacterium species. Partial 16S rRNA gene sequence analysis revealed 100 % similarity between 65...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علوم و فنون دریایی خرمشهر - پژوهشکده بیوتکنولوژی 1392

به منظور شناسایی و تعیین ساختار و مقایسه تنوع ژنتیکی خیار دریایی holothuria parva در دو منطقه بندر بستانه و بندر دیر، روش توالی یابی ژن 16s rrna بکار رفت. به این منظور پس از نمونه برداری از ایستگاه ها، استخراج dna به روش استات آمونیوم انجام گرفت. آغازگرهای مورد استفاده با به کارگیری نرم افزار oligo7 طراحی گردید و با استفاده از آن ها واکنش های زنجیره ای پلیمراز صورت گرفت. پس از تکثیر، محصولات تو...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علوم و فنون دریایی خرمشهر - دانشکده علوم دریایی و اقیانوسی 1391

جهت بررسی و مقایسه ی تنوع ژنتیکی اویستر خلیج فارس که قبل از این مطالعه به اویستر crassostrea gigas معروف بود، مجموعاً 30 نمونه از بندر امام خمینی و بندر عباس در آبان ماه 90 جمع آوری گردید. استخراج dna به روش ctab انجام گردید. آغازگرها از روی ژن 16s rrna ثبت شده در بانک ژنی، انتخاب گردید. واکنش زنجیره ای pcr برای تمام نمونه ها انجام و سپس محصولات pcr، توالی یابی اتوماتیک شدند. پس از تعیین توالی ا...

2008
Zongzhi Liu Todd Z. DeSantis Gary L. Andersen Rob Knight

The recent introduction of massively parallel pyrosequencers allows rapid, inexpensive analysis of microbial community composition using 16S ribosomal RNA (rRNA) sequences. However, a major challenge is to design a workflow so that taxonomic information can be accurately and rapidly assigned to each read, so that the composition of each community can be linked back to likely ecological roles pl...

2014
Yazeed A. Al Sheikh Mohammed Ali M. Marie James John Lakshmana Gowda Krishnappa Khaled Homoud M. Dabwab

BACKGROUND Co production of 16S rRNA methylases gene and β-Lactamase gene among Enterobacteriaceae isolates conferring resistance to both therapeutic options has serious implications for clinicians worldwide. METHODS To study co existence of 16S rRNA methylases (armA, rmtA, rmtB, rmtC, rmtD, and npmA) and β-Lactamase (blaTEM-1, blaSHV-12, blaCTX-M-14) genes, we screened all phenotypic positiv...

Journal: :Antimicrobial agents and chemotherapy 2006
Jun-Ichi Wachino Kunikazu Yamane Keigo Shibayama Hiroshi Kurokawa Naohiro Shibata Satowa Suzuki Yohei Doi Kouji Kimura Yasuyoshi Ike Yoshichika Arakawa

Proteus mirabilis ARS68, which demonstrated a very high level of resistance to various aminoglycosides, was isolated in 2003 from an inpatient in Japan. The aminoglycoside resistance of this strain could not be transferred to recipient strains Escherichia coli CSH-2 and E. coli HB101 by a general conjugation experiment, but E. coli DH5alpha was successfully transformed by electroporation with t...

Journal: :Biocontrol science 2015
Toshihiro Okuno Katsuji Tani Nobuyasu Yamaguchi Masao Nasu

To determine whether the DNA gyrase (gyrB) and 16S ribosomal RNA (16S rRNA) genes can be used as indicators of the biological activities of Legionella pneumophila, the expression levels were estimated. The ratio of mRNA/DNA in gyrB was 0.7 in mid log phase and decreased drastically after the log phase. For 16S rRNA, the ratio was highest in mid log phase (7.0×10(3)), and the value that was abou...

Journal: :Laboratory medicine 2016
Sophie Arbefeville Anthony Harris Steven Dittes Patricia Ferrieri

OBJECTIVES To identify the gram-negative rods grown from blood cultures and a right-knee fluid aspirate from an 80-year-old caucasian man who had undergone a total right knee arthroplastic procedure 6 years ago, and to assess the genetic similarity between the 2 isolates. METHODS We used 3 different approaches: biochemical testing, matrix-assisted laser desorption ionization time-of-flight (M...

Journal: :Journal of bacteriology 1989
R K Hartmann V A Erdmann

A cloned 16S rRNA gene from the extreme thermophilic eubacterium Thermus thermophilus HB8 was used to characterize the in vivo expression of the 16S rRNA genes in this organism by nuclease S1 mapping. The gene represents an isolated transcription unit encoding solely 16S rRNA. Under exponential growth conditions, transcription was initiated at a single promoter, which represents the structural ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید