Practical guide to detection and identification of Phytophthora Leaf blight A number of Phytophthora species cause leaf blight. These include: P. infestans on potato and tomato; P. palmivora on a large number of tropical fruit species including rubber‚ durian and macadamia; and P. colocasiae on taro. These blights on leaves are first seen as small flecks but within 3-5 days they expand to produce large lesions. Initially‚ infected tissue is water soaked but becomes necrotic (brown or black) in
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The unknown bacteria A and bacteria B have to be identified by its genus and species. First both bacteria had to be inoculated into a TSA agar media using the streak plate method. Four quadrants were drawn‚ so that the bacteria could be isolated as much as possible. Each bacteria was inoculated into two different plates‚ so that one could be incubated at 37 degrees Celsius and the other at 25 degrees Celsius. Bacteria B‚ which was incubated at room temperature showed red colonies throughout its media
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points Describe the Kirby Bauer Test? Make sure you describe all the key elements. 1. Using sterile technique‚ inoculate 3 nutrient agar plates individually with: a. E. coli b. S. aureus c. M. smegmatis 2. Place antibiotic disks evenly spaced on the inoculated agar plates and incubate at 37C for 24-48 hours. 3. Using sterile technique‚ inoculate 3 nutrient agar plates individually with: a. E. coli b. S. aureus c. M. smegmatis 4. Using sterile technique place disk in each of the solutions:
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Medical Microbiology II - Laboratory Report 1 Aim: To successfully identify and differentiate Neisseria Species and Moraxella catarrhalis; i. detail the microscopic and cultural characteristics of the Neisseria spp. and Moraxella catarrhalis‚ ii. differentiate the Neisseria spp. and Moraxella catarrhalis associated with humans‚ iii. describe the isolation media used for Neisseria gonorrhoeae and give reasons why they are used‚ iv. recognize gram-negative diplococcic in urethral
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of Hitler. Propaganda also symbolizes how the power of symbols and words brought Hitler to power.” In front of him‚ he read from the copy of Mein Kampf. His savior. Sweat was swimming out of his hands. Fingermarks clutched the book. Zusak ‚157) Max had Hitler’s Mein Kampf story to be perceived as as a German. Max didn’t want to be known as a Jew so he had Mein Kampf to portray himself as a German even though he was Jewish. This book meant everything to Max this book was his
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2. To start off‚ Hitler wrote a famous book called Mein Kampf or “My struggle.” The book includes many of Hitler’s youth days as well as his views on politics and race. In the book he describes the master race of humans as Aryan or light skinned people with blonde hair and blue eyes. As he describes a master race‚ he also writes about an inferior race. Mostly he discriminated against Jews‚ but also Slavic people and Gypsy’s. A quote from Mein Kampf‚ "All the human culture‚ all the results of art
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Microbiology and Process Analysis laboratory 25/10/2013 Group 1 Microbiology laboratory Abstract The lab exercises were divided into three different analysis; microscopy‚ soil microbiology and bacterial growth. The main aim of laboratory work with Escherichia coli and soil sample was to introduce students to bacterial growth in pure culture and soil microbial flora. The experiment of bacterial growth in pure culture using optical density
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Unknown Identification Report The objective of this experiment was to identify an organism from a mixture of two unknown bacterial species. In order to accomplish this‚ I first plated my unknown mixture on Tryptic Soy Agar (TSA)‚ Columbia Naladixic Acid (CNA)‚ and MacConkey’s Agar (MAC) plates. After 48 hours of incubation‚ it was unclear that two different bacterial colonies had grown on my TSA plate. Only one type of colony was evident. However‚ it was apparent that I had successfully isolated
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QUEENSLAND ACADEMIES FOR SCIENCE‚ MATHEMATICS AND TECHNOLOGY International Baccalaureate Diploma Program Extended Essay in Biology Is Tea-tree Oil effective in controlling and minimising the growth of the Escherichia coli Bacteria? A study of the effectiveness of a Natural Antiseptic Candidate Name: Lois Adrienne Dianne Soriano Dulay Candidate Session Number: 003072-032 Word Count: 3997 Supervisor: Ms Kate Barry Date of Submission: 25th July 2011 Acknowledgments Firstly I would
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The effects of black tea on the growth of E. coli bacteria cultures Kierstin Barker‚ Melissa Bischak‚ Jackie Tyszkiewicz‚ Errin Enany September 25‚ 2012 Abstract: This study was carried out in order to investigate whether black tea has antimicrobial properties as stated in Steven Johnson’s The Ghost Map. If tea does have antimicrobial properties‚ then it could aid in warding off waterborne diseases. We believed that if black tea is steeped in boiled water‚ then the amount of bacteria exposed
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