de Lipathay et al. 2003. In situ exposure to low herbicide concentrations affects microbial population composition and catabolic gene frequency in an aerobic shallow aquifer. Appl. Environ. Microbiol . 69: 461-467. Objective.
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de Lipathayet al. 2003. In situ exposure to low herbicide concentrations affects microbial population composition and catabolic gene frequency in an aerobic shallow aquifer. Appl. Environ. Microbiol. 69: 461-467.
Aquifer = an underground bed or layer of permeable rock, sediment, or soil that contains water and releases it in appreciable amounts; water-bearing zone.
Mecoprop = 2-(2-methyl-4-chlorophenoxy)propionic acid
Dichlorprop = 2-(2,4-dichlorophenoxy)propionic acid
Aquifer contaminated with a mixture of mecoprop, dichlorprop, 2-,ethyl-4,6-dinitrophenol (DNOC), bentazone, isoproturon, 2,4-dichlorbenzamide continuously for 216 days, bromide as tracer
40 µg/L of each herbicideinjected for 216 days, samples in Fig. 3 taken 40 days later
Pseudomonas in acclimated sediment
Role of Pseudomonas in degradation? Mineralization study?
- RFLP patterns in B2 different from others
- tdf no homology with known sequences
Specific recognition sites 4-6 basepairs
To evaluate how the in situ exposure of the Vejen aquifer to low phenoxyacid herbicide concentrations affected the indigenous microbial community composition