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High prevalence of Hepatozoon spp. (Apicomplexa, hepatozoidae) infection in water pythons (Liasis fuscus) from tropical Australia

Ujvari, Beata LU ; Madsen, Thomas LU and Olsson, M (2004) In Journal of Parasitology 90(3). p.670-672
Abstract
Molecular methods were used to identify blood parasites frequently observed in blood smears of water pythons (Liasis fuscus) captured in our study area in the Northern Territory of Australia. A nested polymerase chain reaction (PCR) using primers amplifying the 18s ribosomal RNA (IRNA) nuclear gene resulted in a short PCR product (180 bp) matching this region in the genus Hepatozoon. However, because of the short sequence obtained, 2 new primers were designed based on 18s IRNA sequences of 3 Hepotozoon taxa available in GenBank. Using these primers, approximately 600 bp of the parasite's 18s IRNA gene was amplified successfully and sequenced from 2 water python samples. The new primers were used to investigate the prevalence of blood... (More)
Molecular methods were used to identify blood parasites frequently observed in blood smears of water pythons (Liasis fuscus) captured in our study area in the Northern Territory of Australia. A nested polymerase chain reaction (PCR) using primers amplifying the 18s ribosomal RNA (IRNA) nuclear gene resulted in a short PCR product (180 bp) matching this region in the genus Hepatozoon. However, because of the short sequence obtained, 2 new primers were designed based on 18s IRNA sequences of 3 Hepotozoon taxa available in GenBank. Using these primers, approximately 600 bp of the parasite's 18s IRNA gene was amplified successfully and sequenced from 2 water python samples. The new primers were used to investigate the prevalence of blood parasites in 100 pythons. In 25 of these samples we did not observe any blood parasites when examining stained slides. All the samples revealed a 600-bp PCR product, demonstrating that pythons in which we did not visually observe any parasites were infected by Hepatozoon spp. We also analyzed the nucleotide sequences of blood parasites in 4 other reptile taxa commonly encountered in our study area. The sequences obtained from water pythons and from I of these taxa were identical, suggesting that the parasite is capable of infecting hosts at different taxonomic levels. (Less)
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author
organization
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type
Contribution to journal
publication status
published
subject
in
Journal of Parasitology
volume
90
issue
3
pages
670 - 672
publisher
American Society of Parasitologists
external identifiers
  • wos:000222292200044
  • pmid:15270125
  • scopus:3142676288
ISSN
0022-3395
language
English
LU publication?
yes
id
ed31a2d6-3a06-4305-ae8b-9565212f3410 (old id 136964)
alternative location
http://www.bioone.org/bioone/?request=get-abstract&issn=0022-3395&volume=090&issue=03&page=0670
date added to LUP
2007-06-25 14:04:40
date last changed
2017-10-22 04:48:47
@article{ed31a2d6-3a06-4305-ae8b-9565212f3410,
  abstract     = {Molecular methods were used to identify blood parasites frequently observed in blood smears of water pythons (Liasis fuscus) captured in our study area in the Northern Territory of Australia. A nested polymerase chain reaction (PCR) using primers amplifying the 18s ribosomal RNA (IRNA) nuclear gene resulted in a short PCR product (180 bp) matching this region in the genus Hepatozoon. However, because of the short sequence obtained, 2 new primers were designed based on 18s IRNA sequences of 3 Hepotozoon taxa available in GenBank. Using these primers, approximately 600 bp of the parasite's 18s IRNA gene was amplified successfully and sequenced from 2 water python samples. The new primers were used to investigate the prevalence of blood parasites in 100 pythons. In 25 of these samples we did not observe any blood parasites when examining stained slides. All the samples revealed a 600-bp PCR product, demonstrating that pythons in which we did not visually observe any parasites were infected by Hepatozoon spp. We also analyzed the nucleotide sequences of blood parasites in 4 other reptile taxa commonly encountered in our study area. The sequences obtained from water pythons and from I of these taxa were identical, suggesting that the parasite is capable of infecting hosts at different taxonomic levels.},
  author       = {Ujvari, Beata and Madsen, Thomas and Olsson, M},
  issn         = {0022-3395},
  language     = {eng},
  number       = {3},
  pages        = {670--672},
  publisher    = {American Society of Parasitologists},
  series       = {Journal of Parasitology},
  title        = {High prevalence of Hepatozoon spp. (Apicomplexa, hepatozoidae) infection in water pythons (Liasis fuscus) from tropical Australia},
  volume       = {90},
  year         = {2004},
}