51. 'Candidatus pasteuria usgae' sp. nov., an obligate endoparasite of the phytoparasitic nematode Belonolaimus longicaudatus.
- Author
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Giblin-Davis RM, Williams DS, Bekal S, Dickson DW, Brito JA, Becker JO, and Preston JF
- Subjects
- Animals, DNA, Bacterial genetics, DNA, Ribosomal genetics, Gram-Positive Endospore-Forming Bacteria genetics, Molecular Sequence Data, Phylogeny, Plants parasitology, RNA, Bacterial genetics, RNA, Ribosomal, 16S genetics, Tylenchida pathogenicity, Gram-Positive Endospore-Forming Bacteria classification, Gram-Positive Endospore-Forming Bacteria pathogenicity, Tylenchida microbiology
- Abstract
Taxonomically relevant characteristics of a fastidiously Gram-positive, obligately endoparasitic prokaryote (strain S-1) that uses the phytoparasitic sting nematode Belonolaimus longicaudatus as its host are reviewed. 16S rDNA sequence similarity (> or = 93%) confirms its congeneric ranking with other Pasteuria species and strains from nematodes and cladocerans and corroborates morphological, morphometric and host range evidence suggesting a novel taxon. The 16S rDNA sequence of strain S-1 has greatest similarity (96%) to the 16S rDNA sequences of both Pasteuria penetrans from root-knot nematodes (Meloidogyne species) and the recently reported strain of Pasteuria isolated from the soybean cyst nematode Heterodera glycines. Because the obligately endoparasitic nature of prokaryotes in the genus Pasteuria prevents isolation of definitive type strains, strain S-1 is proposed as 'Candidatus Pasteuria usgae' sp. nov.
- Published
- 2003
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