The Diversity of Life

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The Diversity of Life I. An Overview II. An
Overview of 'The Bacteria' III. Domain Archaea
and The Early Earth
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The Diversity of Life I. An Overview II. An
Overview of 'The Bacteria' III. Domain Archaea
and The Early Earth
The three Archaean groups exploit extreme
environments (like early Earth?)
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The Diversity of Life I. An Overview II. An
Overview of 'The Bacteria' III. Domain Archaea
and The Early Earth
The two Archaean groups exploit extreme
environments (like early Earth?) Crenarchaeota
'thermacidophiles' - reduce sulphur compounds in
geothermal sulphur springs and geothermal vents.
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The Diversity of Life I. An Overview II. An
Overview of 'The Bacteria' III. Domain Archaea
and The Early Earth
The two Archaean groups exploit extreme
environments (like early Earth?) Crenarchaeota
'thermacidophiles' - reduce sulphur compounds in
geothermal sulphur springs and geothermal
vents. Euryarchaeota 'methanogens' - reduce CO2
and harvest small amounts of energy.
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The Diversity of Life I. An Overview II. An
Overview of 'The Bacteria' III. Domain Archaea
and The Early Earth
The two Archaean groups exploit extreme
environments (like early Earth?) Crenarchaeota
'thermacidophiles' - oxidize sulphur compounds in
geothermal sulphur springs and geothermal
vents. Euryarchaeota 'methanogens' - reduce CO2
and harvest small amounts of energy. 'halophiles'
- live in saline environments some have a very
primitive form of photosynthesis.
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The Diversity of Life IV. Domain Eubacteria
- Proteobacteria a diverse group including
photosynthetic sulphur bacteria (using H2S as an
electron donor in photosynthetic pathways),
mitochondria relatives, and some human pathogens
(Salmonella, Vibrio cholerae)
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The Diversity of Life IV. Domain Eubacteria
- Proteobacteria a diverse group including
photosynthetic sulphur bacteria (using H2S as an
electron donor in photosynthetic pathways),
mitochondria relatives, and some human pathogens
(Salmonella, Vibrio cholerae) -
Cyanobacteria probably the first oxygenic
photosynthetic organisms, they are similar
structurally and physiologically to chloroplasts
in eukaryotes.
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The Diversity of Life IV. Domain Eubacteria
- Proteobacteria a diverse group including
photosynthetic sulphur bacteria (using H2S as an
electron donor in photosynthetic pathways),
mitochondria relatives, and some human pathogens
(Salmonella, Vibrio cholerae) -
Cyanobacteria probably the first oxygenic
photosynthetic organisms, they are similar
structurally and physiologically to chloroplasts
in eukaryotes. - Spirochaetes motile and often
parasitic pathogens (syphilis, Lyme disease)
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The Diversity of Life IV. Domain Eubacteria
- Proteobacteria a diverse group including
photosynthetic sulphur bacteria (using H2S as an
electron donor in photosynthetic pathways),
mitochondria relatives, and some human pathogens
(Salmonella, Vibrio cholerae) -
Cyanobacteria probably the first oxygenic
photosynthetic organisms, they are similar
structurally and physiologically to chloroplasts
in eukaryotes. - Spirochaetes motile and often
parasitic pathogens (syphilis, Lyme disease) -
Chlamydias exclusively parasitic - Firmicules
spore-forming pathogens - Staph, TB, tetanus
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The Diversity of Life I. An Overview II.
Introduction to the 'Bacteria' IIV. Domain
Archaea and The Early Earth IV. Domain
Eubacteria IV. Domain Eukarya
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The Diversity of Life IV. Domain Eukarya
A. Characteristics - membrane bound
nucleus - organelles - sexual reproduction
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infolding of membrane
The Diversity of Life IV. Domain Eukarya
B. Origins
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The Diversity of Life IV. Domain Eukarya
endosymbiosis - mitochondria and chloroplasts
(Margulis - 1970's)
B. Origins
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The Diversity of Life IV. Domain Eukarya
C. Phylogeny
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The Diversity of Life IV. Domain Eukarya
D. Diversity
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The Diversity of Life IV. Domain Eukarya
D. Diversity
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The Diversity of Life IV. Domain Eukarya
D. Diversity
Foraminifera
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The Diversity of Life IV. Domain Eukarya
D. Diversity
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The Diversity of Life IV. Domain Eukarya
D. Diversity
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The Diversity of Life IV. Domain Eukarya
D. Diversity - green alga
Same chlorophyll as plants alternation of
generation genetic analysis confirms relatedness
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The Diversity of Life IV. Domain Eukarya
D. Diversity - Choanoflagellates