Abstract
A toxicity biomonitoring system using freeze-dried recombinant bioluminescent bacteria was implemented to diagnose the biotreatment of 2,4,5-trichlorophenol and its degradation byproducts of using a cell-free culture broth of Phanerochaete chrysosporium. The cellular toxicity was measured by the bioluminescence of constitutive bioluminescent bacteria, such as Photobacterium phosphoreum and GC2, while information on the toxicity caused by unknown byproducts was obtained using the specific bioluminescent responses of stress-inducible bioluminescent bacteria, which included DPD2540 (membrane-damage sensitive), TV1061 (protein-damage sensitive), DPD2794 (DNA-damage sensitive), and DPD2511 (oxidative-damage sensitive) strains. An overall decrease in the cellular toxicity was observed as the treatment progressed, i.e. as 2,4,5-trichlorophenol disappeared. On the other hand, bioluminescent responses from DPD2511, DPD2540, and TV1061 increased as degradation progressed, most probably due to the formation of byproducts causing oxidative-, membrane-, and protein-damage. In conclusion, this toxicity biomonitoring method may be applied to evaluate the toxicities of degradation byproducts of the other environmental processes to provide more information about the mode of the byproducts' toxicity.
| Original language | English |
|---|---|
| Pages (from-to) | 229-238 |
| Number of pages | 10 |
| Journal | Analytica Chimica Acta |
| Volume | 481 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2003 Apr 3 |
| Externally published | Yes |
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Keywords
- Byproducts' toxicity
- Diagnostic of biotreatment results
- Freeze-dried bioluminescent bacteria
- Toxicity classification
- Toxicity monitoring
ASJC Scopus subject areas
- Biochemistry
- Analytical Chemistry
- Spectroscopy
- Environmental Chemistry
Cite this
Toxicity biomonitoring of degradation byproducts using freeze-dried recombinant bioluminescent bacteria. / Choi, Sue Hyung; Gu, Man Bock.
In: Analytica Chimica Acta, Vol. 481, No. 2, 03.04.2003, p. 229-238.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Toxicity biomonitoring of degradation byproducts using freeze-dried recombinant bioluminescent bacteria
AU - Choi, Sue Hyung
AU - Gu, Man Bock
PY - 2003/4/3
Y1 - 2003/4/3
N2 - A toxicity biomonitoring system using freeze-dried recombinant bioluminescent bacteria was implemented to diagnose the biotreatment of 2,4,5-trichlorophenol and its degradation byproducts of using a cell-free culture broth of Phanerochaete chrysosporium. The cellular toxicity was measured by the bioluminescence of constitutive bioluminescent bacteria, such as Photobacterium phosphoreum and GC2, while information on the toxicity caused by unknown byproducts was obtained using the specific bioluminescent responses of stress-inducible bioluminescent bacteria, which included DPD2540 (membrane-damage sensitive), TV1061 (protein-damage sensitive), DPD2794 (DNA-damage sensitive), and DPD2511 (oxidative-damage sensitive) strains. An overall decrease in the cellular toxicity was observed as the treatment progressed, i.e. as 2,4,5-trichlorophenol disappeared. On the other hand, bioluminescent responses from DPD2511, DPD2540, and TV1061 increased as degradation progressed, most probably due to the formation of byproducts causing oxidative-, membrane-, and protein-damage. In conclusion, this toxicity biomonitoring method may be applied to evaluate the toxicities of degradation byproducts of the other environmental processes to provide more information about the mode of the byproducts' toxicity.
AB - A toxicity biomonitoring system using freeze-dried recombinant bioluminescent bacteria was implemented to diagnose the biotreatment of 2,4,5-trichlorophenol and its degradation byproducts of using a cell-free culture broth of Phanerochaete chrysosporium. The cellular toxicity was measured by the bioluminescence of constitutive bioluminescent bacteria, such as Photobacterium phosphoreum and GC2, while information on the toxicity caused by unknown byproducts was obtained using the specific bioluminescent responses of stress-inducible bioluminescent bacteria, which included DPD2540 (membrane-damage sensitive), TV1061 (protein-damage sensitive), DPD2794 (DNA-damage sensitive), and DPD2511 (oxidative-damage sensitive) strains. An overall decrease in the cellular toxicity was observed as the treatment progressed, i.e. as 2,4,5-trichlorophenol disappeared. On the other hand, bioluminescent responses from DPD2511, DPD2540, and TV1061 increased as degradation progressed, most probably due to the formation of byproducts causing oxidative-, membrane-, and protein-damage. In conclusion, this toxicity biomonitoring method may be applied to evaluate the toxicities of degradation byproducts of the other environmental processes to provide more information about the mode of the byproducts' toxicity.
KW - Byproducts' toxicity
KW - Diagnostic of biotreatment results
KW - Freeze-dried bioluminescent bacteria
KW - Toxicity classification
KW - Toxicity monitoring
UR - http://www.scopus.com/inward/record.url?scp=0037417143&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0037417143&partnerID=8YFLogxK
U2 - 10.1016/S0003-2670(03)00091-6
DO - 10.1016/S0003-2670(03)00091-6
M3 - Article
AN - SCOPUS:0037417143
VL - 481
SP - 229
EP - 238
JO - Analytica Chimica Acta
JF - Analytica Chimica Acta
SN - 0003-2670
IS - 2
ER -