نتایج جستجو برای: 16srrna

تعداد نتایج: 335  

Journal: :Journal of Bacteriology & Mycology: Open Access 2022

French Bacteriologist Alexander Yersinia in 1894 first described eniterocolitica as causative organisms for food-borne illness. enterocolitica is an enteropathogenic organism and causes “yersiniosis” that denotes infections such as, gastroenteritis infants young children it considered bacillary dysentery or campylobacter - like enterocolitis with abdominal pain diarrhea. Even give rise to acute...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شاهد - دانشکده علوم پایه 1389

طی رسیدگی پنیر، تشکیل طعم فرآیند نسبتاً آرامی است که شامل تبدیلات شیمیایی و بیوشیمیایی ترکیبات شیر است و دارای سه مسیر اصلی است: تجزیه لاکتوز (گلیکولیز)، چربی (لیپولیز) و کازئین (پروتئولیز). از تجزیه لاکتوز ترکیبات طعم دهنده ای مثل دی استیل، استون، استالدهید یا اسید استیک می تواند ایجاد شود. از تجزیه اسیدهای چرب آزاد ترکیباتی مثل متیل کتون ها، الکل های نوع دوم، استرها و لاکتون ها ایجاد می شود. ت...

2014
Hossein Dabiri Masoumeh Azimi Rad Ramin Tavafzadeh Effat Taheri Soudabeh Safakar Ehsan Nazemalhosseini Mojarad Neda Farzaneh Mohammad Reza Zali

AIM We aimed for detection of bacterial DNA (bactDNA) in spontaneous bacterial peritonitis (SBP) by polymerase chain reaction (PCR) and its prognostic relevance in cirrhotic patients with culture-negative non-neutrocytic ascites (CNNNA). BACKGROUND approximately 60% of patients with spontaneous bacterial peritonitis (SBP) are ascites culture negative. PATIENTS AND METHODS Of each 77 patient...

2017
Anni Djurhuus Svein-Ole Mikalsen Helge-Ansgar Giebel Alex D Rogers

There are still notable gaps regarding the detailed distribution of microorganisms between and within insular habitats such as deep-sea hydrothermal vents. This study investigates the community composition of black smoker vent microorganisms in the Southern Hemisphere, and changes thereof along a spatial and chemical gradient ranging from the vent plume to surrounding waters. We sampled two hyd...

2007
D. K. NEWMAN

Understanding the mechanisms of anaerobic microbial iron cycling is necessary for a full appreciation of presentday biogeochemical cycling of iron and carbon and for drawing conclusions about these cycles on the ancient Earth. Towards that end, we isolated and characterized an anaerobic nitrate-dependent Fe(II)-oxidizing bacterium from a freshwater sediment. The 16SrRNA gene sequence of the iso...

2017
Alice Giusti Andrea Armani Carmen G Sotelo

The Next Generation Sequencing (NGS) technologies represent a turning point in the food inspection field, particularly for species identification in matrices composed of a blend of two or more species. In this study NGS technologies were applied by testing the usefulness of the Ion Torrent Personal Genome Machine (PGM) in seafood traceability. Sixteen commercial surimi samples produced both in ...

Journal: :Emerging Infectious Diseases 1999
T. Hänscheid B. G. Pinto I. Pereira J. M. Cristino E. Valadas

icterus developed, and the patient died of shock and multiorgan failure 9 hours after hospitalization, despite treatment with a mixture of antibiotics, which contained doxycycline. Rickettsiae of the spotted fever group were isolated by the shell vial technique from the blood of the three patients. Sequences of polymerase chain reaction-amplified fragments of 16SrRNA (1440 bp), citrate synthase...

2016
K. G. Sneha Devika Pillai C. G. Rakesh Manoj Kumar Bhaskaran Nair

Two bacterial strains designated C9 and C11 were isolated and characterized from black tiger shrimp Penaeus monodon maintained in laboratory conditions. The shrimp exhibited tiny white spots along with clinical signs of bacterial infection, probably, due to suboptimal water quality and resulting stress. Absence of white spot syndrome virus was confirmed by PCR. Bacterial isolates obtained from ...

2014
Yalda Khosravi Yakhya Dieye Bee Hoon Poh Chow Goon Ng Mun Fai Loke Khean Lee Goh Jamuna Vadivelu

Human stomach is the only known natural habitat of Helicobacter pylori (Hp), a major bacterial pathogen that causes different gastroduodenal diseases. Despite this, the impact of Hp on the diversity and the composition of the gastric microbiota has been poorly studied. In this study, we have analyzed the culturable gastric microbiota of 215 Malaysian patients, including 131 Hp positive and 84 H...

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