Lecture_08 - Lecture 8 Exopolymers, Pili (Fimbriae) BBOM...

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Lecture 8 Bacterial Nutrition and Growth BBOM 11e Sec. 5.1-5.2 , 6.1, 6.4-6.6 Exopolymers, Pili (Fimbriae) BBOM 11e Sec. 4.13
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Extracellular Polymer Structures Capsule = Slime layer = Glycocalyx LM TEM Structure: Hydrated heteropolysaccharide matrix Functions: Attachment, Protection against grazing, toxic substances = Exopolymer layer
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Pili and Fimbriae Structure: Fine hairs, protein subunits Functions: Attachment, specific recognition, conduit for DNA??
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Classes of Microorganisms Based on Carbon Source: Two terms to remember Elements of Microbial Nutrition The Elements of Life Everything comes from the environment C N P S 50 14 K, Mg, Ca, Na, Cl, Fe Trace elements O 20 H 8 3 1 Macronutrients 3.7 0.3 Micronutrients % of cell dry weight Organic C source =>Heterotroph (or Organotroph ) Read: BBOM 11e Sec. 5.1 Inorganic C source (CO2) => Autotroph , vitamins, & growth factors
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Bacterial Nutrition Defined media based on the composition of the E.coli cell Model: Escherichia coli cells in
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This note was uploaded on 02/19/2008 for the course ECON 1110 taught by Professor Wissink during the Fall '06 term at Cornell University (Engineering School).

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Lecture_08 - Lecture 8 Exopolymers, Pili (Fimbriae) BBOM...

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