COMPARISON BETWEEN PLACENTA AGAR AND NUTRIENT AGAR ON GROWTH OF Staphylococcus aureus AND Escherichia coli Chloe Dominique Acero Kristine Marie Gonzales Hannah Marie Hermosisima Patrisha joy Morales Joanna Keziah Ramos Group 4 BSMT3E Background of the Study Placenta is an organ characteristic of a true mammal during pregnancy‚ joining mother and offspring‚ providing endocrine secretion and selective exchange of soluble‚ but not particulate
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In this review we will learn a lot of things about the effects of radiation in plants and some information about the plants and radiation. So as I go on my research I found out that‚ in moving from the water to the land‚ several living creatures had to subdue the number of problems. It must include the fortification against reproduction‚ fluid and nutrient transport‚ desiccation and ultraviolet radiation. So plants started from algae‚ it has been found in a long time photosynthesizing bacteria could
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1- Synthesis of silver nanoparticles by Bacillus sp.: The microorganisms in the most contaminated toilet Sink were isolated by dilution technique. The dominant bacterial strains are identified as Bacillus sp.‚ on the basis of morphological and biochemical characteristics. Gram’s staining: Gram positive and rod shape. They were serially diluted and spread on nutrient agar plates. The starch has been hydrolyzed and a clear zone by the addition of iodine solution. Visual identification: When bacterial
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Wolkov et al.‚ (2014) cited Penicillium canescens is a filamentous fungus that typically does not secrete sufficient levels of cellulase activity. Cellobiohydrolase I (CBH) of P. canescens (PcCel7A) homologously cloned and then expressed into a host strain RN3-11-7 (niaD-). The recombinant enzyme showed maximum activity at pH 4.0–4.5. They found that PcCel7A was stable at 50 °C and pH 4.5 for 3 hours‚ while at 60°C after 30 min of incubation it lost 45% of activity. The recombinant enzyme showed
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MBK – Lab Report Differential Staining Questions: A. What is a differential stain? How is it different from a simple stain? 1. A differential stain is a stain that differentiates between gram-positive and gram-negative bacteria. Bacteria that stain purple are considered gram-positive and those that stain pink are considered gram-negative. 2. A simple stain is a stain that reacts with all microbes in and identical fashion. They are used to increase contrast. 3. They
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Doyle and Schoeni (1984) reported 37 0C as the optimum temperature for growth of Escherichia coli 0157:H7 in Trypticase Soy Broth. This grew poorly in the temperature range of 44 to 45.5 °C which is generally used for recovery of E. coli from foods. Bettelheim (1998) designed Rainbow Agar O157 for the isolation and identification of EHEC. In this medium E. coli O157 was characterised by black colonies whereas O113 and some other EHEC strains were mauve‚ red or pink and indistinguishable from other
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1980 New Year’s Day From Mount Elgon in Kitum Cave‚ a virus first appears in Mr.Monet. Mr. Monet then goes to a hospital and exposes Dr.Musoke to the deadly disease. The virus is revealed to be Marburg by Dr.Silverstein‚ who sent samples to be examined at a research lab for special diseases. Marburg first appeared in an old city‚ in central Germany. Its first appearance was from a factory who shipped green monkeys to a different places that make vaccines from the kidney cells. The source of the
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The antifeedant activity of the extracts choice and no-choice test methods‚ after 24 and 48 hours in each test‚ against 7 day old (3rd instar) larvae of S. litura on castor leaves. Stock solutions of the test compounds were prepared in the carrier solvents. Further dilution was done in emulsified water by maintaining emulsifier (Tween – 80) level at 0.5 % to yield various concentrations. Castor leaf discs (4 cm diameter) were punched out from the washed and dried castor leaves. Leaf discs were dipped
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Do you think it is a good resource for the general public? Why or why not? The first page of the line above from the CDC is a bit confusing at first but the layout is relatively easy to manage (once you realize this is the right page). For the general public‚ a mission statement telling the reader the purpose of the resources given would be helpful. After selecting a section‚ the “second” page has a “better lay out”. The third click where the page layout with a side drop-down menu bar to the left
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Mechanisms of Silver Nanoparticle Action in Bacteria and Potential for Bacterial Resistance The antimicrobial activity of silver in general‚ and of silver nanoparticles in particular‚ is of significant interest because it appears to be independent of the strain of bacteria. Crucially‚ antibiotic resistant strains‚ MRSA (methicillin‚ or multiple-resistant Staphylococcus aureus)‚ E. coli O157‚ and others are affected by silver [6]. The reasons for this are not fully clear as yet‚ but could be related
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