scholarly journals Anaerobic degradation of sorbic acid by sulfate-reducing and fermenting bacteria: pentanone-2 and isopentanone-2 as byproducts

1991 ◽  
Vol 2 (1) ◽  
pp. 33-41 ◽  
Author(s):  
Sylvia Schnell ◽  
Christine Wondrak ◽  
G�nther Wahl ◽  
Bernhard Schink
Keyword(s):  
Anaerobic Degradation ◽  
Sorbic Acid ◽  
Sulfate Reducing ◽  
Fermenting Bacteria

Anaerobic Degradation Pathway of Linear Alkylbenzene Sulfonates (LAS) in Sulfate-Reducing Marine Sediments

2010 ◽  
Vol 44 (5) ◽  
pp. 1670-1676 ◽  
Author(s):  
Pablo A. Lara-Martín ◽  
Abelardo Gómez-Parra ◽  
José Luis Sanz ◽  
Eduardo González-Mazo
Keyword(s):  
Marine Sediments ◽  
Anaerobic Degradation ◽  
Degradation Pathway ◽  
Linear Alkylbenzene ◽  
Sulfate Reducing ◽  
Linear Alkylbenzene Sulfonates

scholarly journals Anaerobic degradation of phenanthrene by a sulfate-reducing enrichment culture

2018 ◽  
Vol 20 (10) ◽  
pp. 3589-3600 ◽  
Author(s):  
Anne M. Himmelberg ◽  
Thomas Brüls ◽  
Zahra Farmani ◽  
Philip Weyrauch ◽  
Gabriele Barthel ◽  
...  
Keyword(s):  
Anaerobic Degradation ◽  
Enrichment Culture ◽  
Sulfate Reducing

Competition for ethanol between sulfate-reducing and fermenting bacteria

1990 ◽  
Vol 153 (5) ◽  
pp. 470-477 ◽  
Author(s):  
Regine Szewzyk ◽  
Norbert Pfennig
Keyword(s):  
Sulfate Reducing ◽  
Fermenting Bacteria

scholarly journals Two radical-dependent mechanisms for anaerobic degradation of the globally abundant organosulfur compound dihydroxypropanesulfonate

2020 ◽  
Vol 117 (27) ◽  
pp. 15599-15608 ◽  
Author(s):  
Jiayi Liu ◽  
Yifeng Wei ◽  
Lianyun Lin ◽  
Lin Teng ◽  
Jinyu Yin ◽  
...  
Keyword(s):  
Anaerobic Degradation ◽  
Organosulfur Compound ◽  
Sulfur Cycle ◽  
Marine Phytoplankton ◽  
Human Gut ◽  
Terminal Electron Acceptor ◽  
Glycyl Radical ◽  
Fermenting Bacteria ◽  
Reducing Bacteria

2(S)-dihydroxypropanesulfonate (DHPS) is a microbial degradation product of 6-deoxy-6-sulfo-d-glucopyranose (sulfoquinovose), a component of plant sulfolipid with an estimated annual production of 1010tons. DHPS is also at millimolar levels in highly abundant marine phytoplankton. Its degradation and sulfur recycling by microbes, thus, play important roles in the biogeochemical sulfur cycle. However, DHPS degradative pathways in the anaerobic biosphere are not well understood. Here, we report the discovery and characterization of two O2-sensitive glycyl radical enzymes that use distinct mechanisms for DHPS degradation. DHPS-sulfolyase (HpsG) in sulfate- and sulfite-reducing bacteria catalyzes C–S cleavage to release sulfite for use as a terminal electron acceptor in respiration, producing H2S. DHPS-dehydratase (HpfG), in fermenting bacteria, catalyzes C–O cleavage to generate 3-sulfopropionaldehyde, subsequently reduced by the NADH-dependent sulfopropionaldehyde reductase (HpfD). Both enzymes are present in bacteria from diverse environments including human gut, suggesting the contribution of enzymatic radical chemistry to sulfur flux in various anaerobic niches.

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