BBlecture13S09s - Syst1 Microbial Systematics Microbial...

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Microbial Systematics Microbial Systematics 14.10: Phenotypic Analysis 14.10: Phenotypic Analysis 14.11: Genomic Analysis 14.11: Genomic Analysis 14.12: Phylogenetic Analysis 14.12: Phylogenetic Analysis 14.13: The Species Concept in Microbiology 14.13: The Species Concept in Microbiology 14.14: Classification and Nomenclature 14.14: Classification and Nomenclature Syst1
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Systematics: the study of the diversity of organisms and their relationships links together phylogeny (the evolutionary history of organisms) and taxonomy (the characterization and naming or organisms, and placing into groups according to their natural relationships) …until recently the “natural relationships” aspect was ~impossible to deal with, when it came to microbial organisms → focus was on practical aspects of identification and description only - phenotypic comparisons Syst2
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polyphasic approach to taxonomy polyphasic approach to taxonomy : : uses phenotypic , genotypic and phylogenetic information phylogeny : to place organism within framework of evolutionary relationships genotypic : to compare organisms at level of genome phenotypic characteristics : incl. physical, biochemical characteristics of the cell two unrelated organisms could have the same phenotype information on organism’s habitat and ecology may also be useful Syst3
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classical identification methods classical identification methods : : most analyses require a pure culture phenotypic criteria are used to classify e.g., growth substrates, metabolic products, biochemical characteristics Syst4
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some characteristics used (phenotype approach) : Microscopic characteristics
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This note was uploaded on 02/04/2011 for the course BIOL 140 taught by Professor Bb during the Spring '11 term at University of Warsaw.

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BBlecture13S09s - Syst1 Microbial Systematics Microbial...

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