117-07 Bacteria-Eukarya slides

117-07 Bacteria-Eukarya slides - Cyanobacteriasource of...

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This is most of the slide text from the Powerpoint. The rest is not copyable Part I. Bacteria and Archaea Permian extinctions 95% ocean life 75% terrestrial life CO2 high Temps high Prokaryotes vs Eukaryotes Size Nucleus Organelles DNA Methods of reproduction Eukaryotes from prokaryotes Endosymbiosis Lynn Margulis Bacteria vs Archaea Differences Diversity and ecological importance Archaea Extreme lifestyles Archaea Extreme lifestyles Halophiles (salt lovers) High temperature tolerances
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Metabolic diversity Undersea Vent “Assemblage” Methane producers Bacterial diversity Essential Cycling and “recycling” Antibiotics Agriculture Food processing “Adversarial” disease Examples: (Know the ones mentioned in class including:) Root nodules on plants, formed by Rhyzobia—one of nitrogen fixing bacteria Evolution of photosynthetic abilities—paraphyletic group of photosynthetic organisms, how did this happen (inter”specific” gene transfer common in bacteria)
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Unformatted text preview: Cyanobacteriasource of chloroplasts in eukarya A weird example of bacteria used in food cultures: Brevibacterium linens 9 species Soil Poultry Fish CHEESE and Brevibacterium linens 9 species Soil Poultry Fish CHEESE And HUMAN SKIN Eukaryotic Evolutionary themes Large size Multicellularity develops (vs coloniality) Volvox an example of multicellular protist Sexual reproduction by meiosis Variety of life histories, including alternation of generations (eg among algae and later plants) Protist diversity HUGE Disease organisms Important marine organisms Algal blooms Keystone species Carbon cycling IMPORTANT RESEARCH SUBJECTS The SLIME MOLDS (check the box in your text) http://dictybase.org Cell differentiation Chemotaxis Cell-cell adhesion Evolution of multicellularity and altruism in general...
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117-07 Bacteria-Eukarya slides - Cyanobacteriasource of...

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