Computer Science
Scientific paper
Nov 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981gecoa..45.2161t&link_type=abstract
Geochimica et Cosmochimica Acta, vol. 45, Issue 11, pp.2161-2168
Computer Science
4
Scientific paper
To demonstrate the potential of model microbial assemblages in studies of the biogeochemistry of complex organic molecules, anaerobic microbial populations capable of degrading cholesterol (cholest-5-en-3 -ol) have been enriched from marine sediment sources. The bacterial enrichments actively mineralized the C-4 nucleus of the cholesterol ring system to carbon dioxide when nitrate was present as the terminal electron acceptor. Nitrite was found as an intermediate in the reduction of nitrate, indicating the presence of denitrifying bacteria in the enrichments. When sulfate was supplied as the sole electron acceptor, active dissimilation of cholesterol was not observed. In enrichments containing 5 mM nitrate, 95-98% of the added cholesterol was recovered as carbon dioxide (2-5%), transformation products (20-30%), or as the unmodified sterol (70-80%). Cholesterol transformation products thus far identified include 5 - and 5 -cholestan-3 -ol, cholest-4-en-3-one, 5 -androstan-3, 17-dione and androst-4-en-3, 17 dione.
Gagosian Robert B.
Smith Steven O.
Taylor Craig D.
No associations
LandOfFree
Use of microbial enrichments for the study of the anaerobic degradation of cholesterol does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Use of microbial enrichments for the study of the anaerobic degradation of cholesterol, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Use of microbial enrichments for the study of the anaerobic degradation of cholesterol will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-744194