PICRIC ACID (DIRECT DYE): Take about 60 mL of water in a 400 mL beaker. Add 2-3 drops of concentrated sulphuric acid and about 0.5 g of Picric Acid to it. Stir the solution with a wooden stick and warm over a hot water bath. Immerse one piece of each wool‚ cotton‚ polyester‚ nylon and terecot into it. When the pieces are thoroughly wetted in dye solution remove these with the help of forceps. Wash these with the help of warm water till the washing is colourless. Dry the pieces and note the results
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as follows: * Anthrax * Koch’s four postulates * Isolating pure culture on solid media * Cholera * Tuberculosis ANTHRAX: Koch is widely known for his work on this disease. He discovered the causative agent for this disease as Bacillus anthracis. Koch discovered spore-formation in the anthrax bacteria‚ which could remain dormant under specific conditions. However‚ under optimal conditions‚ he found that the spores were activated and caused disease. To determine this causative
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Collection‚ Observation‚ and Analysis of Microorganisms in the human environment Introduction The necessity and value of collecting‚ identifying‚ and analyzing the various microbes regularly encountered in the daily human environment becomes quite apparent when one gains even
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EXAM-1 STUDY GUIDE DUE ON FEBRUARY 28TH PLEASE SUBMIT IN THE DROP BOX IN MICROSOFT WORD. CHAPTER-1 The Microbial World and You List several ways in which microbes affect our lives. Help maintain the balance of living organisms and chemicals in our environment. Marine and fresh water microorganisms form the bases of the food chain in oceans‚ lakes‚ and ricers. Soil microbes help break down wastes and incorporate nitrogen gas from the air into organic compounds‚ thereby recycling chemical
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into classes helps in identifying the bacterial species and hence they are classified as gram positive bacteria and gram negative bacteria based upon their staining techniques. Penicillin is the oldest and the best known antibiotic. Basically‚ it is an antibiotic compound derived from the moulds Penicillium notatum and Penicillin chrysogenum and is active in opposition to gram positive bacteria and few gram negative bacteria. Penicillin turns out to have two rings fused together; one being the β-lactam
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against pests‚ has been commercialized now for several years in the US and also in several other countries such as Canada‚ Germany‚ Spain‚ Argentina‚ Honduras‚ South Africa and the Philippines. (Wu‚ 2006) The prefix ‘Bt’ from Bt-Corn originates from Bacillus thuringiensis (Bt)‚ a species of soil bacterium that produces the insecticidal crystal protein or delta endotoxins‚ toxins that kill crop pests.
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Tularemia (Rabbit Fever‚ Deer-fly Fever) Tularemia is an infective disease caused by the gram negative bacteria Francisella tularensi (F. tularensis)‚ which is found in habitats limited to the Northern division. (misc.medscape.com)The disease got the name description in 1911 of a plague like illness found in ground squirrels in Tulare County‚ California‚ by Dr. Edward Francis. This bacteria is usually found in rabbits‚ and can also found in other small animals like rodents‚ muskrats‚ beavers‚ squirrels
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rhizosphere‚ on the rhizoplane or in the spaces between the cells of root cortex while iPGPRs locates generally inside the specialized nodular structures of root cells. The bacterial genera such as Agrobacterium‚ Arthrobacter‚ Azotobacter‚ Azospirillum‚ ‚ Bacillus‚Burkholderia‚Caulobacter‚Chromobacterium‚Erwinia‚Flavobacterium‚Micrococcous‚Pseudomonas and Serrata belongs to ePGPR.The iPGPR belongs to the family of Rhizobiaceae includes Allorhizobium‚Bradyrhizobium‚Mesorhizobium and Rhizobium.Plant growth
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Acknowledgement First‚ I would like to thank God for giving me enough knowledge‚ strength‚ and guidance to be able to finish this term paper. And also I would like to thank my cousins for helping and giving me some information about this. To my family for being my inspiration. To my uncle/auntie for giving financial support. To the authors of Wikipedia or Google and reference book that contribute a lot for making this term paper. And lastly to my Instructor Mr.Lacdao for checking my typographical
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MICR 300A GENERAL MICROBIOLOGY 1 (4)‚ Fall 2014 Lecture (01) M/W 9:50 am – 11:05 pm‚ SH C244 Lab (02) M 11:15 am – 1:45 pm; Lab (03) W 11:15 am – 1:45 pm; ASCL 226 Instructor (Lecture): Dr. Moon H. Lee Office Hours: Mon/Wed 8:45 am-9:45 am; 11:15 am – 12:15 pm Office: BIOS 262‚ Tel: (323) 343-2064‚ Email: mlee@LABioMed.org Instructor (Lab): Dr. Hao Howard Xu Office Hours: Mon‚ 2:40 pm – 4 pm Office: Tel: (323) 343-2188‚ Email: hxu3@calstatela.edu
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