Colorless Sulfur Bacteria José Rojas Echenique. Colorless Sulfur? Colorless: Non-phototrophic...
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- Slide 1
- Colorless Sulfur Bacteria Jos Rojas Echenique
- Slide 2
- Colorless Sulfur? Colorless: Non-phototrophic Sulfur: Sulfur
oxidizing
- Slide 3
- Mats O2O2 H2SH2S
- Slide 4
- Thiovulum veil Thanks Olivia!
- Slide 5
- Thiovulum at the gradient Thanks Isabella!
- Slide 6
- Excellent swimmers Schulz and Jrgensen, 2001
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- Thiovulum slime thread Thanks Isabella!
- Slide 8
- Business Plan Straddling the gradients Excellent swimming: stay
at the optimal spot Slime threads: the veil makes a better
interface
- Slide 9
- Beggiatoa Thanks Olivia!!
- Slide 10
- Beggiatoa Mubmann et al. 2007
- Slide 11
- Business Plan Being in two places at the same time, and at two
times in the same place Long filaments: sulfur and electron donor
in different places Vacuole store: sulfur and electron donor at
different times Gliding: two places at two times also works, they
reach through the boundary layer
- Slide 12
- Enrichments S 2 O 3 2- NO 3 - S 2 O 3 2- O2O2
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- Gradient tubes O2O2 H2SH2S
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- 2S o + 3O 2 + 2H 2 O2SO 4 2- + 4H + Gradient tubes
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- From Aarons gradient tube
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- Gradient tubes
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- Anaerobic Thiosulfate Plates S 2 O 3 2- NO 3 -
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- Anaerobic Thiosulfate Plates S 2 O 3 2- + 2H 2 OSO 4 2- + H 2 S
Thiosulfate Fermentation ( Desulfovibrio sulfodismutans, Desulfu
ocapsa thiozymogenes )
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- Anaerobic Thiosulfate Plates Thanks Katrin!
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- Aerobic Thiosulfate Plates S 2 O 3 2- O2O2
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- Aerobic Thiosulfate Plates S 2 O 3 2- + 2O 2 + H 2 OSO 4 2- + H
2 SO 4 4S 2 O 3 2- + O 2 + 2H 2 O2SO 4 2- + 4OH - 2S 2 O 3 2- + 7O
2 + 6H 2 O2SO 4 2- + 6H 2 SO 4
- Slide 22
- Aerobic Thiosulfate Plates Thanks Veronica!
- Slide 23
- Colorless Sulfur Bacteria
- Slide 24
- Sulfur Cycle