Agar plate

A broth in test tube labeled #2 was used to identify the unknown organisms. A T-soy agar plate was the first media I inoculated. I used the streak isolation technique to isolate a pure strain from colonies, so that organisms can be identified. I inoculated a MacConckey to help me identify my Gram negative organism and observed that the organism was a non-lactose fermenter, then I performed a Citrase test which was negative. The last test I performed was a TSI, the butt was positive for hydrogen

Dental cavities are a very common health issue; most people today will face at least a cavity or two during their lives. Microorganisms play a big role in the formation of cavities. Oral pathogens build up on the teeth, together with food debris and saliva, to form a thick whitish plaque. This becomes prime territory for the microorganisms to ferment food particles left on the teeth, releasing acid as a by-product. This acid erodes and decomposes the teeth below. So what can be done to prevent

teaspoon of soil can contain anywhere from 100 million to 1 billion bacteria (Ingham n.d.). This was the basis for our assumption that the soil would contain the highest levels of bacteria. If the soil contains the highest levels of bacteria, then the agar plate with the dirt sample will grow the most bacterial colonies. Bacteria is the foundation for life on earth as we know it. About 4.5 billion years ago the even that sparked life on earth happened, and that life was bacteria (Gould 2012). The bacteria

Introduction: Antibiotics are vastly known to be prominent therapeutic agents used to treat and prevent bacterial infections. Antibiotics involve chemical substances, either of natural or synthetic origins, that destroy pathogenic microorganisms with minimal damage to host tissues. These chemotherapeutic agents combat various diseases by affecting different targets in eukaryotic and prokaryotic cells. Antibiotics work through several mechanisms of action to combat target pathogens: (1) inhibition

1.1 Plant Samples Collection: Healthy, fresh and disease free Mint (Mentha), and Coriander (Coriander sativum) were purchased in the month of November 2014, from the Karachi local market Gulistan-e-Johar, Karachi, Pakistan. The plants samples were deposited and identified by Herbarium Department of Karachi University. 1.2 Plant Processing: Plants samples were washed with tap water for three to four times and removed all dust and soil particles, and finally washed with distilled water. Then leaves

One may wonder why research is important or why it is important to know how the things around came to be, exist, or interact with one another, particularly with respect to the microbial world. Knowledge that research provides is critical to the understanding of the known world around us. Experiments are what have helped to provide answers to questions, thus fostering knowledge, which allows us to enjoy the lives we live today. Research via experimentation is a critical component as the information

SCREENING OF ANTAGONISTIC ACTIVITY OF MARINE ACTINOMYCETES AGAINST CLINICAL PATHOGENS Ramarajan K*,Karthick .V * P.K.Senthilkumar, Department of Microbiology,Faculty of Sciences, Annamalai University Tamil Nadu, India. Email: ramsmicr@gmail.com Abstract The present study was conducted to examine the ability of six promising indigenous isolates of marine actinomycetes (NA-1, 2, 3, 4 and TA-1, 2) as probiotics in nature. The actinomycetes isolated from these eco systemsare capable of producing

antiseptic. Afterward, observing the reduction of the number and types of bacteria on his or her hands. The antiseptic used in this experiment was one pump of Germ X with no paper towels after applying. After an incubation period of one night the plates were looked at and test results/pictures were obtained. Growth was indicated by a + for growth, a ++ for tremendous growth and a – for no growth at all. Introduction: “The skin is an ecosystem composed of 1.8 m2 of diverse habitats with an abundance

Charles Gathathi BIOL 2420. Dr. Elizabeth Carrington. Proteus mirabilis: I. Introduction: Proteus mirabilis is a Gram-negative, dimorphic bacillus and a facultative anaerobe bacterium. It is a motile member of the family Enterobacteriaceae. This bacteria colonies shows a unique characteristic called swarming behavior. Swarming occurs when the flagellate rods grow into long chain swarmer cells, the swarmers gather together forming “rafts” that swim together, growing into a complex biofilm. P. mirabilis

to antibiotics), antibiotic resistance was decided. Two samples were germ free and diluted with peptone diluent and endured for 1 min. Survivors were itemized by spread plating of antiseptic petri dishes with tryptic soy agar, followed by the oxygenation and incubation of plates. With beef bought from the same market as before, evenly divided portions of it was injected with E. albertii, separately. Following plating on day zero, samples stored at 5°C, 22°C, and 35°C were all removed from incubation