Although development of next generation sequencing (NGS) has substantially improved our understanding of the microbial ecology of animal feces, previous studies have mostly focused on freshly excreted feces. There is still limited understanding of the aging process dynamics of fecal microbiomes in intact cowpats exposed to natural environments. Fresh cowpats were sampled at multiple time points...

azotobacter is a gram negative, aerobe, chemo-organotroph with the, polymorphism including rod, cocci and ovoid forms. this bacterium belongs to gama-proteobacteria class, pseudomonaceae family with 7 species. it cannot produce spores but forms cyst. azotobacters’species lives in different regions from tropicals to poplars in ph 3-9. however, it can be fined mainly in alkaline and natural soils...

BACKGROUND Systematic aerobe training has positive effects on the compliance of dedicated arterial walls. The adaptations of the arterial structure and function are associated with the blood flow-induced changes of the wall shear stress which induced vascular remodelling via nitric oxide delivered from the endothelial cell. In order to assess functional changes of the common carotid artery over...

Budding yeast is a preeminent model organism in studies of cellular aging pathways that are conserved in eukaryotes, including humans. There are two primary ways to query the lifespan of this organism.1 if one asks how many times a cell can divide, the answer will be its replicative lifespan (RLS). if, on the other hand, one asks how long a cell can stay alive without dividing, the answer will ...

Most current research on Campylobacter has focused on preharvest or processing plant cross-contamination. Little is known about the effect of storage environment on the survival of Campylobacter on raw poultry. We evaluated the effects of modified storage atmosphere and freezing on the survival of naturally occurring Campylobacter on raw poultry. Broiler carcasses (n = 560) were collected as th...

Budding yeast is a preeminent model organism in studies of cellular aging pathways that are conserved in eukaryotes, including humans. There are two primary ways to query the lifespan of this organism.1 if one asks how many times a cell can divide, the answer will be its replicative lifespan (RLS). if, on the other hand, one asks how long a cell can stay alive without dividing, the answer will ...

Kashket, E. R. (Harvard Medical School, Boston, Mass.) and A. F. Brodie. Effects of near-ultraviolet irradiation on growth and oxidative metabolism of bacteria. J. Bacteriol. 83:1094-1100. 1962.-The effects of irradiation with near-ultraviolet light (360 mmu) have been studied with Escherichia coli W and a strain of Pseudomonas aeruginosa. The growth of the aerobe P. aeruginosa was inhibited by...

AIM To investigate the antimicrobial activity of 2.5% and 5.25% sodium hypochlorite and 2.0% chlorhexidine gel and liquid as endodontic-irrigating substances against selected single-species biofilms. METHODS Single-species biofilms of Enterococcus faecalis, Staphylococcus aureus, Candida albicans, Prevotella intermedia, Porphyromonas gingivalis, Porphyromonas endodontalis and Fusobacterium nu...

Microbial community composition associated with benzene oxidation under in situ Fe(III)-reducing conditions in a petroleum-contaminated aquifer located in Bemidji, Minn., was investigated. Community structure associated with benzene degradation was compared to sediment communities that did not anaerobically oxidize benzene which were obtained from two adjacent Fe(III)-reducing sites and from me...

Bloodstream infections are associated with high mortality rates because of the probable manifestation of sepsis, severe sepsis and septic shock(1). Therefore, rapid administration of adequate antibiotic therapy is of foremost importance in the treatment of bloodstream infections. The critical element in this process is timing, heavily dependent on the results of bacterial identification and ant...