The bacterial flagellum is a supramolecular motility machine consisting of the basal body as a rotary motor, the hook as a universal joint, and the filament as a helical propeller. Intact structures of the bacterial flagella have been observed for different bacterial species by electron cryotomography and subtomogram averaging. The core structures of the basal body consisting of the C ring, the...

Dryland ecosystems cover more than 30% of the terrestrial area of China, while processes that shape the biogeographic patterns of bacterial and fungal β-diversity have rarely been evaluated synchronously. To compare the biogeographic patterns and its drivers of bacterial and fungal β-diversity, we collected 62 soil samples from a typical dryland region of northwest China. We assessed bacterial ...

background : cockroaches mechanically spread pathogenic agents, however, little is known about their gut microbiota. identification of midgut microbial community helps targeting novel biological control strategies such as paratransgenesis. here the bacterial microbiota of periplaneta americana midgut, were identified and evaluated for finding proper paratransgenesis candidate. methods : midgut ...

Introduction: Bacterial meningitis is still one of the most dangerous infectious diseases and causes serious complications and mortalities in children. The aim of this study was to identify the most common of bacterial agents causing meningitis in children under 10 years old and to detect their resistance to antibiotics in patients who referred to the educational hospital of Hamadan. Materials...

cryptosporial and bacterial co-infection is reported in a budgerigar with clinical manifestations of septicemia and respiratory tract infection. microscopically large number of round to oval 2-5μm cryptosporidial organisms were found to be lodged on the parabronchial epithelial cells of the respiratory tract. the bacterial colonies were seen around the parabronchial spaces of the lung tissue. i...

sepsis is a significant cause of morbidity and mortality in neonates. the most common pathogens of bacterial sepsis and antibiotic sensitivity patterns vary in different parts of the world. the aim of this study was to determine the most common pathogens and outcome of neonatal sepsis and also antibiotic sensitivity patterns of klebsiella species. a retrospective descriptive study was carried o...

background: due to multiple drug resistance against antimicrobial drugs for treatment of infectious disease, investigations to discovering new antibacterial compounds from natural sources have been designated. objective: according to antimicrobial effects of some capparis species, this study was carried out to evaluate the antimicrobial activity of the extract and fractions of capparis cartilag...

BACKGROUND Broad-range PCR provides valuable information for detecting bacterial infections. This study assesses the combined use of broad-range real-time PCR and high-resolution melting analysis for rapid detection and identification of clinically important bacteria. METHODS We subjected 46 bacterial culture colonies representing 25 clinically important bacterial species to LightCycler real-...

Human saliva is clinically informative of both oral and general health. Since next generation shotgun sequencing (NGS) is now widely used to identify and quantify bacteria, we investigated the bacterial flora of saliva microbiomes of two healthy volunteers and five datasets from the Human Microbiome Project, along with a control dataset containing short NGS reads from bacterial species represen...