methods‚ the shape of the bacteria were easier to determine is some slides. Cocci could be seen in the wet mount of yeast‚ but in the wet mount cheek smears it was not that easy to see the morphology of the cells. The plaque smear have cocci and bacillus. On the direct stain slides the cheek smear and the yeast slide have cocci. Also on the yeast slide with indirect stain cocci were observed. The quality of the dye will determine the outcome for the difference in direct and indirect stains.
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It is hard to believe a little flea could kill almost 20 million people in Western Europe. The Bubonic‚ or “Black Plague”‚ began in China in 1334. The bacillus‚ Yersinia pestis‚ existed in all forms of the plague and caused it. The disease was carried in the bellies of fleas that attached to rats. The Black Death subsided in the Russian Steppe in 1351. Bad hygienic conditions in Europe helped the epidemic spread. European lifestyle also changed greatly during and after the disease. As the Black Plague
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FOOD AND INDUSTRIAL MICROBIOLOGY Food spoilage‚ food infections and intoxications caused by microorganisms and methods for their detection Dr. Neeraj Dilbaghi Reader‚ Department of Bio & Nano Technology Guru Jambheshwar University of Science and Technology Hisar- 125001 and Dr (Mrs.) S. Sharma Professor‚ Department of Microbiology‚ CCS Haryana Agricultural University‚ Hisar- 125001 (Revised 25-Sep-2007) CONTENTS Introduction Food Spoilage and General Principles Underlying Spoilage of Food Intrinsic
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important in agriculture. It converts nitrogen in air into compounds usable by plants for growth and development. The same being done by the Rhizobium group of bacteria. They are present in the root nodules of legumes. ● Certain bacteria‚ like Bacillus thuringiensis‚ have been developed into a microbial pesticide. It is used to control pests and insects carrying disease-causing BAD BACTERIA LEPTOSPIROSIS Did you hear about the
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follow-up). Identify at least one national agency or organization that addresses the communicable disease chosen and describe how the organization(s) contributes to resolving or reducing the impact of disease.Tuberculosis‚ MTB‚ or TB (short for tubercle bacillus)‚ in the past also called Phthisis or Phthisis pulmonalis‚ is a common‚ and in many cases lethal‚ infectious disease caused by various strains of mycobacteria‚ usually Mycobacterium tuberculosis.[1] Tuberculosis typically attacks the lungs‚ but can
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Florida State College at Jacksonville BSC 1005 – Life in its Biological Environment Lab 2 – Which Pest Control is Best for Basil? Name: One of the challenges of agriculture is finding the right balance between growing healthy nutritious food; protecting humans‚ wildlife‚ and the environment from pesticides and herbicides; and ensuring a profit. Scientists and agronomists work together to help find this balance. This lab will give you an opportunity to learn about one of these collaborations
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seeing bubbles‚ I ruled out Streptococcus lactis. My organism did have the catalase enzyme; meaning it was either Bacillus subtilis or Staphylococcus. To distinguish the two‚ I performed the simmons citrate test on them. Since the tube stayed green I confirmed that my organism was Staphylococcus. My organism B could not degrade citrate‚ so that meant my organism was not Bacillus subtilis. In conclusion‚ my unknown organisms were Staphylococcus and Enterobacter aerogenes. REFERENCES Kidane‚
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showed significant fluctuations in different points indicating radically heterogeneous conditions throughout the distribution system. The total count varied from 1.2x102 to 6.3x103 cfu/ml. Different bacterial genera including Alcaligenes spp.‚ Bacillus spp.‚ Corynebacterium spp.‚ Escherichia spp.‚ Micrococcus spp.‚ Pseudomonas spp.‚ Shigella spp.‚ Staphylococcus spp. and Streptococcus spp. were isolated from the collected samples. The bacterial community was found to be diversified where the
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poisoning‚ while Streptococcus pyogenes may cause tonsillitis and strep throat. Bacillus Bacillus refers to rod shaped bacteria that are usually Gram-positive or negative. E. coli and Salmonella are the most commonly encountered species responsible for food poisoning and typhoid fever‚ respectively. According to the University at Albany‚ bacillus also includes two of the most dangerous bacteria known‚ that is Bacillus anthracis‚ which causes the lung disease anthrax‚ and Clostridium‚ which causes
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MEDICALLY IMPORTANT BACTERIA | GRAM-POSITIVE BACTERIA * Alpha and gamma hemolysis on blood agar * Bacillus cereus colonies on blood agar * Beta-hemolysis on blood agar (S.aureus) * Beta-hemolysis on blood agar * Beta-hemolytic colonies on blood agar * Clostridium perfringens Gram stain * Corynebacterium diphtheriae Gram stain * Corynebacterium pseudotuberculosis on blood agar * Enterococcus faecalis * Enterococcus faecalis on blood agar * Enterococcus faecalis Gram stain
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