Anaerobic degradation of pyrrolidine and piperidine coupled with nitrate reduction.
Biodegradability of secondary amines (pyrrolidine, piperidine, piperazine, morpholine, and thiomorpholine) under anaerobic conditions was examined in microbial consortia from six different environmental sites. The consortia degraded pyrrolidine and piperidine under denitrifying conditions. Enrichment cultures were established by repeatedly sub-culturing the consortia on pyrrolidine or piperidine in the presence of nitrate. The enrichments strictly required nitrate for the anaerobic degradation and utilized pyrrolidine or piperidine as a carbon, nitrogen, and energy source for their anaerobic growths. The anaerobic degradation of pyrrolidine and piperidine reduced nitrate to nitrogen gas, indicating that these anaerobic degradations were coupled with a respiratory nitrate reduction.
Bae
Hee-Sung
HS
Department of Biological Sciences, Korean Advanced Institute for Science and Technology, Taejon, South Korea.
Cho
Young-Gyun
YG
Oh
Sang-Eun
SE
Kim
In-Soo
IS
Lee
James M
JM
Lee
Sung-Taik
ST
D001421:Bacteria, Anaerobic / Q000502:physiology*; D001673:Biodegradation, Environmental; D002121:Calcium Channel Blockers / Q000378:metabolism*; D004785:Environmental Pollutants / Q000378:metabolism*; D005740:Gases; D009566:Nitrates / Q000378:metabolism*; D010084:Oxidation-Reduction; D010880:Piperidines / Q000378:metabolism*; D011759:Pyrrolidines / Q000378:metabolism*
D002121:Calcium Channel Blockers; D004785:Environmental Pollutants; D005740:Gases; D009566:Nitrates; D010880:Piperidines; D011759:Pyrrolidines; C032727:piperidine; C032519:pyrrolidine