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Shigella species are intracytosolic Gram-negative invasive enteropathogenic bacteria, causing the rupture, invasion and inflammatory destruction of the human colonic epithelium. They utilize the host cytoskeletal components to form propulsive actin tails. The so-called invasive phenotype of Shigella is linked to expression of a type III secretory system (TTSS) injecting effector proteins into the...
An agar degrading bacterium Pseudomonas aeruginosa AG LSL-11 was acclimatized to alginate for the production of alginase. Production parameters such as pH, temperature, influence of simple carbohydrates and nitrogen sources, and effect of NaCl on growth and alginase production were carried out. Maximum growth was observed at pH 9.0 and 35 °C, while alginase was produced optimally at pH 9.0 and 30...
Diarrhoea in developing countries is caused by an increasingly long list of bacterial, viral, and parasitic pathogens with rotavirus, Enterotoxigenic Escherichia coli, Campylobacter, Shigella, and Salmonella heading the list. Using methods to detect most of the known enteropathogens, one or more enteropathogen(s) is isolated in two-thirds of diarrhoeal illnesses in the developing world. Deoxyribonucleic...
Constructed wetlands are eco-friendly, cost-effective technology involved in treatment of wastewaters. The goal of this study is focused on characterization of microbial community existing in a constructed wetland system planted with Cyperus alternifolius treating sewage contaminated with heavy metals. The characteristics of effluent met the standards of discharge for inland use and irrigation. Microbes...
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