Biodegradation of the herbicide mecoprop-p with soil depth and its relationship with class III tfdA genes

Mecoprop-p [(R)-2-(4-chloro-2-methylphenoxy) propanoic acid) is widely used in agriculture and poses an environmental concern because of its susceptibility to leach from soil to water. We investigated the effect of soil depth on mecoprop-p biodegradation and its relationship with the number and dive...

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Bibliographic Details
Published in:Soil biology & biochemistry 2010, Vol.42 (1), p.32-39
Main Authors: Rodríguez-Cruz, M a Sonia, Bælum, Jacob, Shaw, Liz J., Sørensen, Sebastian R., Shi, Shengjing, Aspray, Thomas, Jacobsen, Carsten S., Bending, Gary D.
Format: Article
Language:English
Subjects:
Biodegradation
Diversity
gene expression
half life
herbicides
leaching
mecoprop
Mecoprop-p
microbial genetics
polymerase chain reaction
Quantitative PCR
soil bacteria
Soil depth
soil microorganisms
subsoil
tfdA
topsoil
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Summary:Mecoprop-p [(R)-2-(4-chloro-2-methylphenoxy) propanoic acid) is widely used in agriculture and poses an environmental concern because of its susceptibility to leach from soil to water. We investigated the effect of soil depth on mecoprop-p biodegradation and its relationship with the number and diversity of tfdA related genes, which are the most widely known genes involved in degradation of the phenoxyalkanoic acid group of herbicides by bacteria. Mecoprop-p half-life (DT 50) was approximately 12 days in soil sampled from
ISSN:0038-0717
1879-3428
DOI:10.1016/j.soilbio.2009.09.018