Uggla, Arvid
- National Veterinary Institute (SVA)
- Sveriges lantbruksuniversitet, Swedish University of Agricultural Sciences
Abstract
Sarcocystis is a large genus of cyst-forming coccidian parasites in the phylum Apicomplexa (Protista). Stable RNA was extracted from cystozoites of Sarcocystis cruzi, S. tenella, S. fusiformis, S. gigantea and Toxoplasma gondii. The partial sequences of the small sub-unit ribosomal RNA (18S rRNA) were determined by direct RNA sequencing with reverse transcriptase. The rRNA sequences were computer aligned with the published partial sequence of T. gondii, and three oligonucleotides complementary to different variable regions of the 18S rRNA were synthesized. The three probes were end-labelled with 32P and tested in filter hybridization experiments. One of the probes designed to be Sarcocystis genus-specific, did not cross-hybridize to stable RNA from T. gondii. Two of the probes were designed to be species-specific for S. cruzi and S. tenella , and these probes hybridized specifically with their respective targets.
Keywords
APICOMPLEXA; COCCIDIA; HYBRIDIZATION; PROBE; RIBOSOMAL-RNA; SARCOCYSTIS
Published in
Molecular and Cellular Probes
1993, volume: 7, number: 6, pages: 481-486
SLU Authors
UKÄ Subject classification
Microbiology
Publication identifier
- DOI: https://doi.org/10.1006/mcpr.1993.1071
Permanent link to this page (URI)
https://res.slu.se/id/publ/145200