Degradation of the herbicide dicamba under strictly anaerobic conditions

J. Gu; S. Cheng; J. Gu

Degradation of the herbicide dicamba under strictly anaerobic conditions

J. Gu^*, S. Cheng, J. Gu^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

Degradation of the herbicide dicamba was assayed under methane-producing condition using a coastal wetland soil as an inoculum. Benzene ring ¹⁴C labeled dicamba was employed and degradative process proceeds through demethoxylation yielding 3,6-dichlorosalicylic acid as the predominant intermediate. The data showed that the degradation rate of dicamba by the enrichment culture achieved 64 %, 91 % and 95% after 7, 16 and 27 days of incubation, respectively; only small quantities of CO₂ (0.74%) and CH₄ (0.11%) were recovered with insignificant radioactivity. The benzene ring of dicamba was not cleavaged to a significant extent. Future cleaning up of dicamba contaminated environment may require an effective bioremediation techniques.

Original language	English
Pages (from-to)	111-113
Number of pages	3
Journal	Huanjing Kexue/Environmental Science
Volume	22
Issue number	4
State	Published - 2001
Externally published	Yes

Keywords

Anaerobic degradation
Bioremediation
Dicamba
Herbicide
Metabolism

Cite this

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title = "Degradation of the herbicide dicamba under strictly anaerobic conditions",

abstract = "Degradation of the herbicide dicamba was assayed under methane-producing condition using a coastal wetland soil as an inoculum. Benzene ring 14C labeled dicamba was employed and degradative process proceeds through demethoxylation yielding 3,6-dichlorosalicylic acid as the predominant intermediate. The data showed that the degradation rate of dicamba by the enrichment culture achieved 64 %, 91 % and 95% after 7, 16 and 27 days of incubation, respectively; only small quantities of CO2 (0.74%) and CH4 (0.11%) were recovered with insignificant radioactivity. The benzene ring of dicamba was not cleavaged to a significant extent. Future cleaning up of dicamba contaminated environment may require an effective bioremediation techniques.",

keywords = "Anaerobic degradation, Bioremediation, Dicamba, Herbicide, Metabolism",

author = "J. Gu and S. Cheng and J. Gu",

year = "2001",

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T1 - Degradation of the herbicide dicamba under strictly anaerobic conditions

AU - Gu, J.

AU - Cheng, S.

AU - Gu, J.

PY - 2001

Y1 - 2001

N2 - Degradation of the herbicide dicamba was assayed under methane-producing condition using a coastal wetland soil as an inoculum. Benzene ring 14C labeled dicamba was employed and degradative process proceeds through demethoxylation yielding 3,6-dichlorosalicylic acid as the predominant intermediate. The data showed that the degradation rate of dicamba by the enrichment culture achieved 64 %, 91 % and 95% after 7, 16 and 27 days of incubation, respectively; only small quantities of CO2 (0.74%) and CH4 (0.11%) were recovered with insignificant radioactivity. The benzene ring of dicamba was not cleavaged to a significant extent. Future cleaning up of dicamba contaminated environment may require an effective bioremediation techniques.

AB - Degradation of the herbicide dicamba was assayed under methane-producing condition using a coastal wetland soil as an inoculum. Benzene ring 14C labeled dicamba was employed and degradative process proceeds through demethoxylation yielding 3,6-dichlorosalicylic acid as the predominant intermediate. The data showed that the degradation rate of dicamba by the enrichment culture achieved 64 %, 91 % and 95% after 7, 16 and 27 days of incubation, respectively; only small quantities of CO2 (0.74%) and CH4 (0.11%) were recovered with insignificant radioactivity. The benzene ring of dicamba was not cleavaged to a significant extent. Future cleaning up of dicamba contaminated environment may require an effective bioremediation techniques.

KW - Anaerobic degradation

KW - Bioremediation

KW - Dicamba

KW - Herbicide

KW - Metabolism

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AN - SCOPUS:0034917619

SN - 0250-3301

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JO - Huanjing Kexue/Environmental Science

JF - Huanjing Kexue/Environmental Science

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ER -

Degradation of the herbicide dicamba under strictly anaerobic conditions

Abstract

Keywords

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