PPT-Microbial Toxin-BIOC 422

Lecture16 3 Fungal Toxins Fungal toxins Toxins from fungi are widely grouped into toxins from moulds mycotoxins toxins from higher fungi mushroom poisons 2 Mushroom Poisoning. Check the Bulletin for prerequisites and th e course schedule for availability 2 Most graduate courses require the consent of the instructor Discuss your desire to take a course with your adviser and the course instru ctor before registration brPage Updated: January 2015. By Jerald D. . H. endrix. Microbial Classification . and Taxonomy. Classification Systems. Levels of Classification. Definition of “Species”. Nomenclature. Useful Properties in Microbial Classification. Microbial food spoilage occurs as a consequence of either microbial growth in a food or release of extracellular and intracellular(following cell . lysis. ) . enzymes in the food environment.. Signs of spoilage of different types of food:. Slide . 1. Intelligent Systems (AI-2). Computer Science . cpsc422. , Lecture . 34. Dec, 4, 2015. CPSC 422, Lecture 35. 2. Lecture Overview. TA E. valuations . / Teaching . Evaluations . IBM Watson. Botox® is made from Botulinum Toxin Type A, a protein produced by bacterium Clostridium. For the purposes of improving the appearance of wrinkles, small doses of the toxin are injected into the affected muscles blocking the release of a chemical that would otherwise signal the muscle to contract. The toxin thus paralyzes or weakens the injected muscle. The treatment usually begins to work within 24 to 48 hours and can last up to 4 months. The Food and Drug Administration (FDA) approved the cosmetic use of Botulinum Toxin Type A for the temporary relief of moderate to severe frown lines between the brow and recommends that the procedure be preformed no more frequently than once every 3 months. . A. Microbial Reproduction. 1. binary (transverse) fission. A) parent cell enlarges and duplicates all its genetic material. B) DNA copies move to opposite ends of parent and attach to a section of the cell membrane as it begins to pinch together at the center. . Definitions. Indigenous . flora. microorganisms . native or belonging naturally to a region.. Colonization. establishment . of a site of reproduction of microbes on a person without necessarily resulting in tissue invasion or . In the Environment. Table 9.1 Terminology of Microbial Control. Figure 9.1 A plot of microbial death rate.. Basic Principles of Microbial Control. Action of Antimicrobial Agents. Alteration of cell walls and membranes. 1. Intelligent Systems (AI-2). Computer Science . cpsc422. , Lecture . 10. Sep, 29. , 2017. CPSC 422, Lecture 10. 2. Lecture Overview. Finish Reinforcement learning. Exploration vs. Exploitation. On-policy Learning (SARSA). Microbiology. Microbial Growth. Microbial requirements for growth:. 1. . Physical. A. . Temperature. Optimal growth temperature. Permissible range. human pathogens optimal = . 37°C. Microbial Growth. Streptococcus . bacteria. Sarah Cook. Carnegie Mellon University . 03-727 . Phylogenetics. 12 December 2017. Toxin-antitoxin (TA) system as abortive infection mechanism. Abortive infection (Abi) mechanism. 1. Intelligent Systems (AI-2). Computer Science . cpsc422. , Lecture . 23. Nov 3, 2017. Slide credit: . Probase. Microsoft Research Asia, YAGO Max Planck Institute, National Lib. Of Medicine, NIH. Crispr. /Cas9 cascade coding . cosmid. targeting . Stx. 1 and . Stx. 2 genes via lambda phage delivery system. Amanda Rutledge. How E. coli become Shiga toxin-producing. Escherichia coli. Shiga toxin-encoding phage. Algai. Toxins. Dr. Ayat B. Al-. Ghafari. Associate Professor of Biomedical Sciences. e.mail. : abalghafari@kau.edu.sa. Algae refers to a large and diverse group of aquatic organisms that contain chlorophyll and carry out oxygenic photosynthesis. .