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National Repository of Grey Literature 1 records found  Search took 0.01 seconds. 
Použití specifických aktinomycetových PCR primerů k charakterizaci bakteriálních společenstev exkrementů žížal
 Hill, P. ; Krištůfek, Václav ; Feijoo, A. M. ; Gallego, G.
Tropical geophageous earthworms stimulate soil bacterial activity in soil that they ingest; it is uncertain if they affect the whole bacterial population or only subgroups. We sampled .i.Martiodrillus heterostichon, Polypheretima elongata./i. and bulk soil from a Bamboo plantation near Cali, Colombia. Pots of 1500 g of an adjacent tobacco field soil were brought to field capacity and two worms of each species placed in each pot. .i.Martiodrillus./i. gut contents and wormcasts from the soil surface and within tunnels were sampled after three months. The soil was maintained at field capacity for a further five months during which the worms continued to produce casts. Worm cast Amplified ribosomal DNA restriction analysis ARDRA (using Tag I) with actinomycete specific primers gave two strong bands at approximately 750 and 370 bp. ARDRA patterns from the three bamboo grove and four field soils had several additional bands notably at 140 and 126 bp.
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