DNA/DNA hybridization studies and 16SrDNA sequence analysis indicate that Y. pestis evolved from Yersinia pseudotuberculosis 1500 to 20,000 years ago. There are three primary clinical forms of Y. pestis infections in humans which without treatment exhibit a high incidence of death: bubonic plague, pneumonic plague, and septicemic plague. The designation "Black Plaque" is derived from extensive ...

The horse has a rich and complex microbial community within its gastrointestinal tract that plays a central role in both health and disease. The horse receives much of its dietary energy through microbial hydrolysis and fermentation of fiber predominantly in the large intestine/hindgut. The presence of a possible core bacterial community in the equine large intestine was investigated in this st...

Objective:  To identify etiologic microbiota associated periodontal diseases among diabetes patients and the factors related to most commonly identified bacteria species .  Material Methods:  Periodontal plaque samples from 11 diabetic participants 13 non-diabetic controls were collected assess their aerobic anaerobic bacterial growth. Different distinct colonies by microscopic 16srDNA sequenci...

BACKGROUND & OBJECTIVES The nosocomial human pathogen Acinetobacter baumannii has high propensity to develop resistance to antimicrobials and to become multidrug resistant (MDR), consequently complicating the treatment. This study was carried out to investigate the presence of resistant plasmids (R-plasmids) among the clinical isolates of A. baumannii. In addition, the study was performed to ch...

This research aimed to assess the impact of fermented Citri Sarcodactylis Fructus by-products (FCSF) on growth performance, gut digestive enzyme activity, nutrient utilization efficiency, microbiota, and their metabolites in broiler chickens. A total 1,080 male chickens were allocated into four groups (T1–T4) consisting 6 replicates per group, each containing 45 The basal diet was provided grou...

Purpose: This research was aimed to screen and identify multifunctional phosphorus-dissolving bacteria of a Chinese fir (Cunninghamia lanceolata) plantation study its characteristics in order provide strain resources theoretical basis for developing the appropriate bacterial fertilizer plantation. Methods: First, were isolated from woodland soil by Pikovskava inorganic phosphorus medium (PVK). ...

BACKGROUND Antibiotics are usually assumed as secondary metabolites produced during the idiophase of microbial growth, which can kill or inhibit the growth of other microorganisms. Nowadays, indiscriminate use of antibiotics has resulted in resistant microorganisms. Therefore, screening researches on products with antimicrobial activities are necessary. OBJECTIVES To find new antibiotics to d...

A new photosynthetic bacterium isolate was morphologically identified as a non-motile rod-shape gram-negative bacterium. It produced a dark red culture under phototrophic condition, reproduced by budding and formed a lamellar intracytoplasmic membrane system parallel to cytoplasmic membrane, which contained bacteriochlorophyll a and caratenoids. It’s physiological and nutrient requirement tests...