chemical agents all affect the expression of genes. In this lab‚ the effect of temperature change on the gene which codes for a red pigment called prodigiosin of bacterium Serratia marcescens is being tested. Serratia marcescens is usually found in soil and plants‚ and the accumulation of prodigiosin in the bacterial cells makes them appear red. Prodigiosin is produced only at certain temperatures‚ so by regulating the temperature in which Serratia marcescens is cultured‚ the optimum temperature for the most prodigiosin to be produced can be tested
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Erythromycin‚ Penicillin‚ and Ampicillin are affected by the bacteria Serratia marcescens. Our hypothesis is that Penicillin will have the largest ring of inhibition‚ the ring around the disk where the antibiotic has killed bacteria. We believe Penicillin will be the most common antibiotic that we have heard of. The materials we used to make this test possible consists of a sterile nutrient agar Petri dish‚ the bacteria Serratia marcescens‚ Erythromycin antibiotic disk‚ Ampicillin antibiotic disk‚ Penicillin
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Experiment 9: Growth curve of Serratia marcescens Abstract Bacteria grows by binary fission. The aim of this experiment is to follow the growth of Serratia marcescens in nutrient broth at 37oCby recording the changes in turbidity (cloudiness) by measuring the absorbance of visible light (600 nm) and also to prove that there is an increase in the cell number and not just in mass during the growth. In the experiment we measure the full growth curve of Serratia marcescens by measuring the absorbance
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Serratia marcescens is a gram-negative rod shaped bacteria that is ubiquitous in the environment. S. marcescens is a member of the genus Serratia‚ which is a part of the family Enterobacteriaceae (Herra 1). Currently 14 species of Serratia are recognized within the genus‚ eight of which are associated with human infection‚ S. marcescens being the most common clinical isolate and the most important human pathogen of the genus (Herra 1). Serratia marcescens is also particularly prevalent in hospital
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Tetracycline and Chloramphenicol against Serratia marcescens By C. A. Bechdel Abstract The problem investigated was Serratia marcescens. We hypothesized that both Tetracycline and chloramphenicol will be effective against treating S. marcescens. The experiment was conducted with a single control group and two experimental groups. The experiment was replicated 8 times. The experiment showed that in testing the control group S. marcescens‚ chloramphenicol had a mean death zone of 30.9 mm +/- 2
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Chemotherapeutic Agents of Control: Introduction: Chemotherapeutic agents are chemical substances used to treat various forms of infectious diseases. The chemotherapeutic agent works by stopping the bacteria from reproducing. There are two different kinds of chemotherapeutic agents. The first kind is an antibiotic‚ which slow down the growth of microorganisms. The second kind of chemotherapeutic agent is synthetic drugs. Synthetic drugs are artificially made in a laboratory. Chemotherapy
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Unknown Lab Report Dr. Nathan Cahoone Microbiology 204 December 9‚ 2010 Introduction There are many reasons for knowing the identity of microorganisms. The study and test was done by applying all of the methods that have been learned so far in the microbiology laboratory class for the identification of an unknown bacterium which I was using unknown #25. Results Unknown #25 had the following morphology on a streak plate: medium sized butyrous cream colored colony. Gram-staining was utilized
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Unknown Lab Report #1 Unknown #1 April 25‚ 2012 Microbiology Spring 2012 MCB2010C Unknown #1 Introduction Identity of a microorganism has proven to be very significant. Doing so can help identify diseases and created treatment and cures for such diseases. As a result‚ various laboratory tests were performed to an unknown microbe (Unknown #1) found in the water of a nearby pond. By identify the microbe‚ the safety of the water will be known to those around it. Materials and Methods
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Name: Danielle Title: Unknown Lab Report Introduction: There are many reasons for identifying an unknown bacterium. The reasons range from medical purposes‚ such as determining if the unknown could cause ailments in living things or knowing what microorganisms are needed to make antibiotics. The experiment was done by applying methods in order to identify an unknown bacterium. An unknown bacterium was handed out by Dr. Honer. The appropriate tests were prepared and applied. The
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Introduction to Microbiology Laboratory report №10 Physical factors affecting growth microbes: Temperature‚ pH and oxygen requirement. Student: Temirlan Aitbekov Lab partner: Kanat Sadykov Instructor: Alessandra Clementi‚ MD‚GP Lab date: 7/11/14 Due date: 14/11/14 Nazarbayev University Abstract: This experiment is directed
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