Degradation of 1,3-dichloropropene by a soil bacterial consortium and Rhodococcus sp. AS2C isolated from the consortium |
| |
Authors: | Li-Tse Ou John E Thomas Keun-Yook Chung Andrew V Ogram |
| |
Institution: | (1) Soil and Water Science Department, University of Florida, P.O. Box 110290, Gainesville, FL 32611-0290, USA |
| |
Abstract: | A bacterial consortium capable of degrading the fumigant 1,3-D ((Z)- and (E)-1,3-dichloropropene) was enriched from an enhanced soil. This mixedculture degraded (Z)- and (E)-1,3-D only in the presence of a suitable biodegradable organic substrate, such as tryptone, tryptophan, or alanine. After 8 months of subculturing at 2- to 3-week intervals, a strain of Rhodococcus sp. (AS2C) that was capable of degrading 1,3-D cometabolically in the presenceof a suitable second substrate was isolated. (Z)-3-chloroallyl alcohol (3-CAA) and (Z)-3-chloroacrylic acid (3-CAAC), and (E)-3-CAA and (E)-3-CAAC were the metabolites of (Z)- and (E)-1,3-D, respectively. (E)-1,3-D was degraded faster than (Z)-1,3-D by the strain AS2C and the consortium. AS2C also degraded (E)-3-CAA faster than (Z)-3-CAA. Isomerization of (E)-1,3-D to (Z)-1,3-D orthe (Z) form to the (E) form did not occur. |
| |
Keywords: | (Z)- and (E)-1 3-dichloropropene (Z)- and (E)-3-chloroallyl alcohol aerobic biodegradation bacterial consortium Rhodococcus sp |
本文献已被 SpringerLink 等数据库收录! |
|