Bacillus

reflecting key differences in the composition of their cell walls. These differences often have a direct influence on what the bacteria does, with some Gram-negative bacteria being pathogenic in nature. Gram positive bacilli Sopre foming bacillus cereus- food poisoning, bacillus anthracis, anthrax, clostridium tetani-tetanus; clostridium botulinum- botulism; Clostridium perfringens- gangrene; Clostridium difficile- colonitis Non sporing: listeria monocytogenes- food poisoning; corynebecterium…

into ammonia, nitrogen gas and nitrous oxide (N2O) is called denitrification. This process ends in the release of gaseous nitrogen into the atmosphere and thus completes the nitrogen cycle. A number of bacteria such as Pseudomonas denitrificans, Bacillus subtilis and Thiobacillus dentrificans are involved in this…

for intracellular invasion (11).H. pylori is the best-known member of the Helicobacter genus, which includes dozens of species that primarily colonize the gastrointestinal tract of a variety of animals (12). H. pylori are a curved gram-negative bacillus with a bundle of unipolar flagella. Biochemical identification of H. pylori relies on the activities of the urease, catalase and oxidase enzymes. The bacterium is slow- growing and requires a rich medium and a microaerophilic atmosphere for in…

in salad; Aeromonas spp. Gram Negative, Bacillus Pseudomonas spp. Gram Negative, Bacillus Oxidase Positive Oxidase Positive Fermentative Oxidative The results found in table 2, match the specification for Aeromonas spp being gram negative, a bacillus fermentative and oxidase positive.…

Van Tran Microbiology Tuesday 5:00 May 5, 2015 Unknown Sample # 7 1. Introduction: Using biochemical tests are a good way to identify unknown bacteria from a sample. It is basically a similar to a trial and error method, but rather than using trial and error a person would be using positive and negative results. Using biochemical tests will help a person identify certain characteristics of the unknown bacteria through a series of chemical tests. Of course more than one biochemical tests…

(MIC) was made in vitro for compounds which showed antimicrobial activity. Compound 3b has broad spectrum activity against Gram +ve bacteria, Gram -ve bacteria, Yeast and Filamentous Fungus with MICs 150, 150, 75, 312, 625 and 625 µg/mL against (Bacillus subtilis ATCC 6633, Staphylococcus aureus ATCC 3555, Escherichia coli ATCC 23282 Pseudomonas aeruginosa ATCC 10145, Candida albicans IMRU…

Among human beings are small microscopic life-forms that exist everywhere throughout the world. Those microscopic life forms are known as bacteria. Bacteria can survive in the coldest or hottest temperatures around the earth. Known to be unicellular, bacteria live within human bodies and also in the food we eat. Not only that, they are everywhere. Bacteria plays a major role in the human body. For an example, it is bacteria located in the intestines that help with food digestion. Even though…

What is athlete’s foot? Athlete’s foot is a common infection of the skin triggered by fungus. It’s usually referred to medically as tinea pedis. Athlete’s foot can take place anywhere in or around the foot but usually between the toes and the bottom of the foot. Athlete’s foot can be caused by many types of fungi including species of Trichophyton, epidermophyton and microsporum. The condition is usually developed by contact with the infected skin with the bacteria. It is often a crusty, red,…

GMO impact on multi-species (SAM) A study base research was conducted to determine the persistence and ecological impacts of a cyanobacterium genetically engineered to express mosquitocidal Bacillus thuringiensis toxins. The cyanobacterium Anabaena has been genetically engineered to contain Bacillus thuringiensis israelensis that is a group of bacteria used as biological control agents for larvae stages of certain dipterans, also known as fly. To see the ecological impacts, it must be evaluated…

aeruginosa, Morganella morganii, Aeromonas hydrophila, Enterococcus species, Serratia marcescens, Proteus mirabilis, Shewanella putrefaciens, Enterobacter aerogenes, Salmonella typhi, Citrobacter freundii, Klebsiella pneumoniae, Bacillus subtilis, Bacillus megaterium, Bacillus cereus etc and anaerobes includes Clostridium perfringens, Streptococcus species, Bacteroides species(). R.S. Baylock 2001 studied bacterial…