Microbial genetic, structural and functional diversity was assessed in response to Arsenic (As) pollution in a former gold mine soil. EL-FAME, qPCR, DGGE, enzyme activities and MicroResp techniques were used. Multivariate analysis showed that As bioavailability in soil was an important driver affecting microbial diversity. Microbial biomass assessed by EL-FAMEs and q-PCR generally decreased under higher bioavailable As, as well as enzyme activities and C substrates utilization. Conversely actinomycetes and fungal biomass increased along with total As content suggesting the selection of more resistant species.
A multi-biological assay approach to assess microbial diversity in arsenic (As) contaminated soils
MARTIN, Maria;
2017-01-01
Abstract
Microbial genetic, structural and functional diversity was assessed in response to Arsenic (As) pollution in a former gold mine soil. EL-FAME, qPCR, DGGE, enzyme activities and MicroResp techniques were used. Multivariate analysis showed that As bioavailability in soil was an important driver affecting microbial diversity. Microbial biomass assessed by EL-FAMEs and q-PCR generally decreased under higher bioavailable As, as well as enzyme activities and C substrates utilization. Conversely actinomycetes and fungal biomass increased along with total As content suggesting the selection of more resistant species.
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