Anthrax is a serious disease that is caused by the bacterium Bacillus anthracis. Bacillus anthracis has a very detailed yet simple description. Its shape is given away in its name by bacillus‚ which means rod-shaped and is also arranged in chains. It is gram-positive‚ so it has a simple cell wall. Since B. anthracis is non-motile‚ it is best to use a semi-solid media rather than a wet mount (Bacillus anthracis… [date unkown]). Colonies will resemble the comma-shape because of the bacilli chains and
Premium Microbiology Bacillus
Introduction Although bacteria is microscopic in size‚ it is largely important in the healthcare field‚ environmental work‚ food preparation‚ as well as many other industries. In particular‚ it is essential that healthcare workers be able to identify the species of bacteria invading a human reservoir in order to prescribe the correct antibiotic that will kill that species. For the purpose of bacteria identification‚ numerous tests have been devised to find out the exact species in question. However
Premium Bacteria Microbiology Microorganism
Using the Powersoil DNA extraction kits‚ one gram of soil will be used with six individual reagents to purify the sample of any impurities that might interfere with our results. The six reagents used are labeled as C1‚ C2‚ C3‚ C4‚ C5‚ and C6‚ each with their individual properties to unpurified unwanted
Premium DNA Polymerase chain reaction Bacteria
bacteria? Gram Stain This separation is based on differences in what physical trait? The structure of the cell walls. What is the iodine used for in this staining technique? Crystal violet is first used to stain the sample and iodine is used to affix it. Why is it important to heat fix the bacteria prior to the staining procedure? This procedure is done to kill any bacteria that may be on the slide already and this will insure a clean slide. If you had a bacteria sample that you knew to be gram positive
Premium Bacteria DNA Gram staining
bacteria E.coli was the only type found in the given area by gram staining. E.coli was the chosen bacteria for this type of experiment. It is a gram negative bacterium that will grow rapidly given ‘any culture medium with the necessary energy source‚ nutrients‚ pH‚ and temperature’. Therefore‚ MacConkey Agar being the medium for its growth will enable us to achieve the experiment outcome. MacConkey Agar only allows the growth of gram negative bacteria as they do not contain bile salts and crystal
Premium Gram staining Staining Escherichia coli
increased‚ and high antimicrobial activity (MIC‚ ∼10 μg/ml) was observed in methanol extracts of the inoculated red soils. Antibiotic-producing microorganisms whose numbers increased during incubation included actinomycetes‚ Lysobacter spp.‚ and Bacillus spp. The actinomycetes produced actinomycin C2 and actinomycin C3. No myxobacteria or lytic bacteriophages with activity against either M. luteus or S. aureus were detected in either soil before or after inoculation and incubation. These results
Premium Antibiotic resistance Bacteria Microbiology
Review Sheet Exercise I: Survey of Higher Microorganisms: Protozoa‚ Fungi‚ and Helminths Protozoa (group of Kingdom Protista) 1. Amoeba a. nucleus- dark center of the cell b. food vacuole- They feed by taking nutrients into the cell by diffusion and packaging it into (clear circles spread throughout the cell) c. pseudopod- “false foot”; the motility results from the streaming of the protoplasm that forms the process 2. Entamoeba causes amoebiasis or amoebic dysentery‚
Premium Staining Bacteria Gram staining
identify a Gram(+) as well as a Gram(-) from the species that were given and the experiment proceeded as follows. METHODS The two streak plates made from the mixture of unknown bacteria showed two different colony morphologies. Colonies of Bacteria A were translucent in color‚ circular in form‚ with entire margins and a smooth surface. Colonies of Bacteria B were cream colored‚ irregular in form‚ with undulate margins and an umbonate surface. Two different morphologies allowed Gram stains to be
Premium Bacteria Microbiology Organism
most important tests done was gram staining because it helped to limit the possible bacterium that it could have been. To be sure which bacterium was worked with we referred to the Bergey’s manual and compared the results to the possible bacterium. Results:
Premium Bacteria Microbiology Escherichia coli
BACTERIA Identification (Classification I. Domain: Bacteria 1. Gram Negative Proteobacteria (Phylum XII) Non-Proteobacteria 2. Gram Positive LOW G+C (Phylum XIII) HIGH G+C (Phylum XIV) II. Domain: Archaea III. Domain: Eukarya (Gram Negative 1. Bordetella pertussis Pertussis/Whooping Cough 2. Eikenella corrodens Human Bite Injury
Premium