Fermentation mechanism of fucose and rhamnose in Salmonella typhimurium and Klebsiella pneumoniae.
An equimolar amount of 1,2-propanediol was detected in the medium when Salmonella typhimurium or Klebsiella pneumoniae fermented L-fucose or L-rhamnose. These metabolic conditions induced a propanediol oxidoreductase that converted the lactaldehyde formed in the dissimilation of either sugar into the diol. The enzyme was further identified by cross-reaction with antibodies against Escherichia coli propanediol oxidoreductase. This indicates that L-fucose and L-rhamnose fermentation takes place in these species by 1,2-propanediol production and excretion.
D000429:Alcohol Oxidoreductases; D000693:Anaerobiosis; D004926:Escherichia coli / Q000201:enzymology; D005285:Fermentation; D005643:Fucose / Q000378:metabolism*; D005779:Immunodiffusion; D007711:Klebsiella pneumoniae / Q000378:metabolism*; D019946:Propylene Glycol; D011409:Propylene Glycols / Q000378:metabolism; D012210:Rhamnose / Q000378:metabolism*; D012486:Salmonella typhimurium / Q000378:metabolism*
D011409:Propylene Glycols; D005643:Fucose; D019946:Propylene Glycol; D000429:Alcohol Oxidoreductases; C021494:lactaldehyde reductase; D012210:Rhamnose