de Lipthay, Julia R. published the artcileBacterial diversity and community structure of a sub-surface aquifer exposed to realistic low herbicide concentrations, Synthetic Route of 2447-79-2, the publication is FEMS Microbiology Ecology (2004), 49(1), 59-69, database is CAplus and MEDLINE.
An increasing number of herbicides are found in our groundwater environments. This underlines the need for examining the effects of herbicide exposure on the indigenous groundwater microbial communities, as microbial degradation is the major process responsible for the complete removal of most contaminants. We examined the effect of in situ exposure to realistic low concentrations of herbicides on the microbial diversity and community structure of sub-surface sediments from a shallow aquifer near Vejen (Denmark). Three different community analyses were performed: colony morphol. typing, sole C source utilization in Biolog EcoPlates, and denaturing gradient gel electrophoresis. Cluster anal. demonstrated that the microbial communities of those aquifer sediments that acclimated to the herbicide exposure also had similar community structure. This observation was concurrent for all 3 community analyses. In contrast, no significant effect was found on the bacterial diversity, except for the culturable fraction where a significantly increased richness and Shannon index was found in the herbicide acclimated sediments. The results of this study show that in situ exposure of sub-surface aquifers to realistic low concentrations of herbicides may alter the overall structure of a natural bacterial community, although significant effects on the genetic diversity and C substrate usage cannot be detected. The observed impact was probably due to indirect effects. In future studies, the inclusion of methods that specifically detect relevant microbial sub-populations and functional genes is recommended.
FEMS Microbiology Ecology published new progress about 2447-79-2. 2447-79-2 belongs to amides-buliding-blocks, auxiliary class Chloride,Amine,Benzene,Amide, name is 2,4-Dichlorobenzamide, and the molecular formula is C7H5Cl2NO, Synthetic Route of 2447-79-2.
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