Degradation of the Herbicide Mecoprop [2-(2-Methyl-4-Chlorophenoxy)Propionic Acid] by a Synergistic Microbial Community

Abstract

A microbial community isolated from wheat root systems was capable of growth on mecoprop as the sole carbon and energy source. When exposed to fresh herbicide additions, the community was able to shorten the lag phase from 30 days to less than 24 h. The community comprised two Pseudomonas species, an Alcaligenes species, a Flavobacterium species, and Acinetobacter calcoaceticus. None of the pure cultures was capable of growing on mecoprop. Certain combinations of two or more community constituents were required before growth commenced. The mecoprop-degrading community could also degrade 2,4-dichlorophenoxyacetic acid and 2-methyl-4-chlorophenoxyacetic acid but not 2,4,5-trichlorophenoxyacetic acid.

Role of commensal relationships on the spatial structure of a surface‐attached microbial consortium

“…3-and 4-chlorobiphenyl). Requirement of the combined action of different bacterial species for degradation of xenobiotics has been reported in a number of cases (Gunner and Zuckerman, 1968;Daughton and Hsieh, 1977;Feinberg et al, 1980;Lappin et al, 1985;Tagger et al, 1990;Jime  nez et al, 1991;Wolfaardt et al, 1994;Ramos et al, 1996;de Souza et al, 1998;Park et al, 1999). Based on experiments with liquid-grown co-cultures and pure cultures, evidence has been presented that microbial degradation of xenobiotics may be improved by combining genes encoding degradative capabilities from different organisms into one organism (e.g.…”

Phosphatase activity with reference to bacteria and phosphorus in tropical freshwater aquaculture pond systems

“…It appears that a mixed population of bacteria may probably be essential to promote the degradation of naturally occurring substrates. The requirement for synergistically acting bacterial communities in the degradation of organic matter has been suggested (Lappin, Greaves & Slater 1985).…”

Removal and Ecotoxicity of 2,4-D and MCPA in Microbial Cultures Enriched with Structurally-Similar Plant Secondary Metabolites

“…It is also worth noting that microbial communities isolated from rhizosphere soil contaminated with mecocrop (MCPP) differ substantially from those isolated from bulk soil, comprising mainly bacteria belonging to the γ-Proteobacteria (Pseudomonas spp. and Acinetobacter calcoaceticus) in the presence of MCPP [46].…”