An 18-mer oligonucleotide almost exclusively targeting Bdellovibrio spp. wa
s designed based on available 16S rRNA sequence data. Thr specificity of th
is oligonucleotide used as a PCR primer in combination with a Bacteria doma
in-targeted primer as well as used as a probe in rRNA Jot blot hybridizatio
ns was experimentally confirmed using a variety of alpha-, beta-. gamma-. d
elta-Proteobacteria and Gram-positive bacteria. Similarly, combinations of
the Bacteria primer with oligonucleotides targeting the: 16S rRNA gene of B
dellovibrio bacteriovorus and Bdellovibrio stolpii were shown to be species
specific bq PCR. Positive amplification products. were obtained from an ir
rigation water sample in which a low; level of bdellovibrios was detected b
y plating as well us from soil detached from potato tubers. using the Bdell
ovibrio spp.-Bacteria and the B. bacteriovirus-Bacteria primer pairs. (C) 2
000 Federation of European Microbiological Societies. Published bq Elsevier
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