Gram-positive bacteria

dumpsites were Escherichia coli (33.3%), Klebsiella spp.(16.7%) ,Pseudomonas spp. (13.3%), Proteus spp.(10%), Streptococcus spp. (8.3%), Salmonella spp. (6.7%), Staphylococcus aureus (6.7%) and Enterobacter spp. (5.0%). The high presence of pathogenic bacteria from dumpsites is of serious public health concern and highly significant. Antibiotic susceptibility testing using the disc diffusion…

Botulinum Toxin is categorized as a neurotoxin. Having a fatal dose of merely one to two micrograms it is considered one of the most lethal neurological agents known. The toxin is a microbial product synthesized by an anaerobic, gram-positive, spore-forming bacteria Clostridium botulinum whose natural habitat is soil (Qiagen). There are seven antigenically distinguishable exotoxins differentiated by the use of the prefix BoNT followed by the letters A-G. Although each has a slightly different…

many different types of microbes that are found all around the world, and they play an important role in the environment, in the body of animals, and even in the health of plants. The specific type of microbe investigated in this paper is the gram positive bacterium known as Kocuria rhizophila, which has a bright yellow color that simplifies identification. The main objectives of the paper are the following: describe the bacterium’s habitat, industrial uses, and its medicinal impacts. Kocuria…

tetanus1. Stiffness of the neck is also experienced. The bacteria Clostridium tetani is responsible for production of toxins that cause tetanus. This bacterium exists in form of a dormant spore in the soil and in animal and adult fecal matter. 4(53) C. tetani is activated by lack of oxygen and presence of warmth and other factors inside deep wounds on the human body. The dormant spore form is resilient and survives in very harsh…

Vibrio Fischeri, Rachel Brown: BM304 Revision Guide 2016 Physiology: Vibrio Fischeri are Gram negative, motile rods. One of the key features that can be found in the species Vibrio Fischeri is its bioluminescence. This bioluminescence comes from one of the products of a reaction catalysed by the enzyme luciferase (see biochemistry and metabolism). Vibrio Fischeri are easy to grow and they display chemotaxic behaviour. It is best to grow Vibrio Fischeri at 28 degrees Celsius. (DeLoney-Marino CR,…

faecalis is a Gram-negative coccobacilli that is motile, oxidase positive, catalase positive, non-spore-forming, non-fermenting, slow growing, and citrate positive obligate aerobe (Mahon et al., 2014) (Sachdeva et al., 1963). Its colony morphology is flat, thin, and rough with irregular edging (Mahon et al., 2014) and the flagella varies between the usual shape versus the curly structure, however, both shapes do not exist on the same individual bacteria (Leifson, 1960). The bacteria is most…

marvellous antibacterial activity against MRSA at most concentrations during several periods of time. Despite the fact that the inhibitory effect was mild against E. coli and minimum against P. aeruginosa at the maximum concentrations. The gram-positive bacteria was showed an increasing in cell death across various concentrations from low to high. ANOVA was conducted and revealed a significant inhibitory effect for MRSA (P=0.000) at 24 hours. Most concentrations were displayed significant…

Introduction Sepsis, meningitis, and pneumonia are all caused by Streptococcus pneumoniae, a gram positive pathogen. The majority of fatalities caused by Streptococcus pneumoniae are in children under five years and adults over sixty-five years. Unlike many other pathogens, Streptococcus pneumoniae is prevalent in both well- and under-developed countries. Antibiotics and vaccines are constantly being developed to combat Streptococcus pneumoniae, as new strains evolve and resistance increases.…

resistance at an shocking rate (Mezger et al.2014). The main aims of Antibiotic sensitivity testing is detecting possible drug resistance in common pathogens by in-vitro testing of bacterial cultures with antibiotics to determine susceptibility of bacteria to antibiotic therapy. The tests are frequently used when the etiologic agents are members of species capable of resistance to commonly prescribed drugs (Jenkins and Schuetz,2012). The most-widely used tests in clinical laboratories include…

100 Days of Horror with Bordetella Pertussis by Isabella Theamaree Fortun Bordetella pertussis is a fimbriated Gram-negative, pleomorphic, aerobic coccobacillus. It also has a surface associated microcapsule however the role of this is unknown. Bordetella species, in general, grow best at 35° to 37° C. 1 Their growth is fastidious, and this degree of fastidiousness is inversely proportional to its rate of growth.1 Among all Bordetella species, Bordetella pertussis is the most…