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- author "Sasha"
- tags "Mirco exam 2 "
- description "Archaea and the Deeply Branching and Phototrophic Bacteria"
- fileName "Vol 1 of Bergey's Manual"
- freezingBlueDBID -1.0
- Phylum Crenarchaeta
- Strict anaerobic
- Thermophilic
- Many are acidophiles ans sulfur dependent.
- Live in sulfur rich hot springs.
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Phylum Euryarchaeta
Diverse organisms and habitats
Includes methanogens, halobacteria, and thermoplasms.
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Methanogens
- From Phylum Euryarchaeta
- Strict anaerobes that produce methane.
- From swamps, marshes, freshwater and marine sediments.
- Rumen and intestinal system of animals.
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Halobacteria
- From Phylum Euryarchaeta
- Extreme haolophiles
- Require @ least 1.5M NaCl for growth.
- In the Great Salt Lake Dead Sea, and can cause spoilage in salted fish.
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Thermoplasms
- Phylum Euryarchaeta
- Lack cell walls.
- Live in refuse piles of coal mines, geothermal soils and springs.
- Optimum growth around 60 C and pH < 2
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Phylum Aquificae
- -Represent the deepest or earliest branch of bacteria, hyperthermophile, and chemolithoautotrophs.
- -Produces water by using hydrogen to reduce oxygen
- -Gram negative and microaerophilic rod.
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Phylum Deinococcus Thermus
- -Gram positive. -Aerobic and mesophilic.
- -extraordinarily resistant to desiccation and gamma radiation.
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Phylum Chloroflexi
- -Gram Negative
- -has photo- and nonphotosynthetic members.
- -Based on 16S rRNA this phylum doesn't appear closely related to any bacterial group and is deep & ancient branch of the bacterial tree.
- - green nonsulfur bacteria carry out anoxygenic photosynthesis.
- - required organic carbon sources.
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Phylum Cyanobacteria
- - oxygenic photosynthetic bacteria
- - Contain chlorophyll a
- - unicellular or filamentous.
- - branched or unbranched
- - incorporate CO2 through the Calvin cycle
- - Gram negative
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Phylum Chlorobi
- - Known as the green sulfur bacteria
- - use hydrogen sulfide as a source of electron INSTEAD of water.
- - producing sulfur instead of O2
- - leads to sulfur granules deposited outside of the cell.
- - Gram Negative
- - lives in anaerobic sulfide rich zones of lakes.
- - uses the TCA cycle to produce CO2.
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