TY - JOUR
T1 - Degradation of trichlorophenols by Alcaligenes eutrophus JMP134
AU - Clément, Pascale
AU - Matus, Valeria
AU - Cardenas, Leonidas
AU - Gonzalez, Bernardo
N1 - Funding Information:
This work was supported by grant 0558/93 from FONDECYT-Chile and grant F/1886-2 from the International Foundation for Science. We are grateful to Rafael Vicuiia for careful reading of the manuscript.
PY - 1995/3/15
Y1 - 1995/3/15
N2 - The degradation of chlorophenols by Alcaligenes eutrophus JMP134 (pJP4) was studied. The strain grew on 2,4,6-trichlorophenol or 2,4,6-tribromophenol as the sole carbon and energy source. Complete degradation of 2,4,6-trichlorophenol was confirmed by chloride release and gas chromatography analysis of supernatants from growth cultures. The 2,3,5-, 2,3,4-, 2,3,6-and 2,4,5-isomers of trichlorophenol did not support growth. However, up to 40% of 2,4,5-trichlorophenol was mineralized during growth of A. eutrophus on chemostats fed with either phenol (0.4 mM) or 2,4,6-trichlorophenol (0.4 mM) plus 2,4,5-trichlorophenol (0.1 mM). Growth on 2,4,6-trihalophenols was also observed in A. Eutrophus JMP222, the strain lacking pJP4, suggesting that this new degradative ability reported for A. eutrophus is not related to pJP4 encoded catabolic functions.
AB - The degradation of chlorophenols by Alcaligenes eutrophus JMP134 (pJP4) was studied. The strain grew on 2,4,6-trichlorophenol or 2,4,6-tribromophenol as the sole carbon and energy source. Complete degradation of 2,4,6-trichlorophenol was confirmed by chloride release and gas chromatography analysis of supernatants from growth cultures. The 2,3,5-, 2,3,4-, 2,3,6-and 2,4,5-isomers of trichlorophenol did not support growth. However, up to 40% of 2,4,5-trichlorophenol was mineralized during growth of A. eutrophus on chemostats fed with either phenol (0.4 mM) or 2,4,6-trichlorophenol (0.4 mM) plus 2,4,5-trichlorophenol (0.1 mM). Growth on 2,4,6-trihalophenols was also observed in A. Eutrophus JMP222, the strain lacking pJP4, suggesting that this new degradative ability reported for A. eutrophus is not related to pJP4 encoded catabolic functions.
KW - 2,4,5-Trichlorophenol
KW - 2,4,6-Trichlorophenol
KW - Alcaligenes eutrophus
KW - Dechlorination
UR - http://www.scopus.com/inward/record.url?scp=0028934295&partnerID=8YFLogxK
U2 - 10.1016/0378-1097(95)00037-6
DO - 10.1016/0378-1097(95)00037-6
M3 - Article
C2 - 7737484
AN - SCOPUS:0028934295
SN - 0378-1097
VL - 127
SP - 51
EP - 55
JO - FEMS Microbiology Letters
JF - FEMS Microbiology Letters
IS - 1-2
ER -