Metal immobilizing microbes

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Sulfate reducing prokaryotes (SRP) are a unique physiological group of microbes because they have the capability of using sulfate as the final electron acceptor in anaerobic respiration. SRP are diverse and broadly distributed on earth. {Barton, 1995. . #48}

Metal immobilizing microbes Humans
pH-optimaMost known SRPs are neutrophiles. Some are known acidophiles. {Kaksonen, 2004 #49} Neutrophiles
Temperature-optima The largest of the SRB groups are Proteobacteria. Most of the proteobacterial species are mesophiles. {Castro, 2000 #100} but also some termophilic and psycrophilic species have been described. 25°C? (But manage other temperatures with different equipment)
Electron donor Ranging from simple carboxylic acids to more complex aromatic hydrocarbons. Most of the substrates are typical fermentation products and intermediate breakdown products of larger molecules. Chemoorganotrophs
Electron acceptor Sulfur compounds (sulfate, sulfite, thiosulfate, elemental sulfur, organic sulfur compounds), nitrate, nitrite, CO2, As5+, U6+,Cr6+,Mn4+, Fe3+, Tc7+, Pd2+, fumarate, oxygen. {Kaksonen, 2004 #49}Aerobes – oxygen only
Carbon source Heterotrophs, some true autotrophs Heterotrophs
Mechanisms for metal resistance Yes Not really
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