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Assessment of actinobacterial communities in three agricultural soils as determined by PCR-DGGE analyses on the basis of three extraction methodologies: Smalla et al. (S), Powersoil (P), and CIAT (C). Soils: Buinen (B), Valthermond (V), and Kollumerwaard (K). (A) Original DGGE gel; (B) cluster analyses of DGGE patterns generated with UPGMA.
