Evidence for the Presence of Francisella and Spotted Fever Group Rickettsia DNA in the Tick Amblyomma fimbriatum (Acari: Ixodidae), Northern Territory, Australia
Identifieur interne : 008347 ( Main/Exploration ); précédent : 008346; suivant : 008348Evidence for the Presence of Francisella and Spotted Fever Group Rickettsia DNA in the Tick Amblyomma fimbriatum (Acari: Ixodidae), Northern Territory, Australia
Auteurs : Inger-Marie E. Vilcins ; Pierre-Edouard Fournier [France] ; Julie M. Old [Australie] ; Elizabeth Deane [Australie]Source :
- Journal of medical entomology [ 0022-2585 ] ; 2009.
Descripteurs français
- Pascal (Inist)
English descriptors
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Abstract
Ticks (n = 252) were collected from five wild-caught reptile species during routine trapping in the Djukbinj National Park and Fogg Dam Reserve, Northern Territory, Australia. Pooling of ticks (one to four ticks per pool), according to sex or host animal, resulted in 187 samples used for screening for the presence of Rickettsia species via molecular methods. Rickettsia DNA was detected via the amplification of the gltA, ompA, and ompB genes in 57 (34%) of the 187 tick samples, all of which contained only the tick Amblyommafimbriatum Koch (Acari: Ixodidae). Further amplification and sequencing of nine of the positive samples (4.8%) for the gltA, ompA, ompB, 17-kDa, and 16S rRNA genes identified a Rickettsia species sharing closest identity to Rickettsia tamurae. In addition, amplification and sequencing of the 16S rRNA gene detected in the same tick samples the presence of a Francisella species closely related to other tick-borne Francisellae identified in ticks from the Northern Hemisphere.
Affiliations:
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Vilcins</name></author><author><name sortKey="Fournier, Pierre Edouard" sort="Fournier, Pierre Edouard" uniqKey="Fournier P" first="Pierre-Edouard" last="Fournier">Pierre-Edouard Fournier</name><affiliation wicri:level="4"><inist:fA14 i1="01"><s1>Unité des Rickettsies, IFR 48, CNRS UMR6020, Faculté de Médecine, Université de la Méditerranée</s1><s2>Marseille</s2><s3>FRA</s3><sZ>2 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region">Provence-Alpes-Côte d'Azur</region><region type="old region">Provence-Alpes-Côte d'Azur</region><settlement type="city">Marseille</settlement><settlement type="city">Marseille</settlement></placeName><orgName type="university">Université de la Méditerranée</orgName></affiliation></author><author><name sortKey="Old, Julie M" sort="Old, Julie M" uniqKey="Old J" first="Julie M." last="Old">Julie M. Old</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>School of Natural Sciences, Building K2, Hawkesbury Campus, University of Western Sydney,</s1><s2>Penrith South DC, 1797, NSW</s2><s3>AUS</s3><sZ>3 aut.</sZ></inist:fA14><country>Australie</country><wicri:noRegion>Penrith South DC, 1797, NSW</wicri:noRegion></affiliation></author><author><name sortKey="Deane, Elizabeth" sort="Deane, Elizabeth" uniqKey="Deane E" first="Elizabeth" last="Deane">Elizabeth Deane</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>College of Science, Australian National University</s1><s2>Canberra, ACT, 0200</s2><s3>AUS</s3><sZ>4 aut.</sZ></inist:fA14><country>Australie</country><wicri:noRegion>Canberra, ACT, 0200</wicri:noRegion></affiliation></author></analytic><series><title level="j" type="main">Journal of medical entomology</title><title level="j" type="abbreviated">J. med. entomol.</title><idno type="ISSN">0022-2585</idno><imprint><date when="2009">2009</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Journal of medical entomology</title><title level="j" type="abbreviated">J. med. entomol.</title><idno type="ISSN">0022-2585</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>DNA</term><term>Ectoparasite</term><term>Fever</term><term>Francisella</term><term>Ixodidae</term><term>Northern Territory</term><term>Parasite</term><term>Reptilia</term><term>Rickettsia</term><term>Vector</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Fièvre</term><term>DNA</term><term>Parasite</term><term>Vecteur</term><term>Ectoparasite</term><term>Territoire du Nord Australie</term><term>Francisella</term><term>Rickettsia</term><term>Ixodidae</term><term>Reptilia</term><term>Amblyomma</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Ticks (n = 252) were collected from five wild-caught reptile species during routine trapping in the Djukbinj National Park and Fogg Dam Reserve, Northern Territory, Australia. Pooling of ticks (one to four ticks per pool), according to sex or host animal, resulted in 187 samples used for screening for the presence of Rickettsia species via molecular methods. Rickettsia DNA was detected via the amplification of the gltA, ompA, and ompB genes in 57 (34%) of the 187 tick samples, all of which contained only the tick Amb<sub>l</sub>yommafimbriatum Koch (Acari: Ixodidae). Further amplification and sequencing of nine of the positive samples (4.8%) for the gltA, ompA, ompB, 17-kDa, and 16S rRNA genes identified a Rickettsia species sharing closest identity to Rickettsia tamurae. In addition, amplification and sequencing of the 16S rRNA gene detected in the same tick samples the presence of a Francisella species closely related to other tick-borne Francisellae identified in ticks from the Northern Hemisphere.</div></front></TEI><affiliations><list><country><li>Australie</li><li>France</li></country><region><li>Provence-Alpes-Côte d'Azur</li></region><settlement><li>Marseille</li></settlement><orgName><li>Université de la Méditerranée</li></orgName></list><tree><noCountry><name sortKey="Vilcins, Inger Marie E" sort="Vilcins, Inger Marie E" uniqKey="Vilcins I" first="Inger-Marie E." last="Vilcins">Inger-Marie E. Vilcins</name></noCountry><country name="France"><region name="Provence-Alpes-Côte d'Azur"><name sortKey="Fournier, Pierre Edouard" sort="Fournier, Pierre Edouard" uniqKey="Fournier P" first="Pierre-Edouard" last="Fournier">Pierre-Edouard Fournier</name></region></country><country name="Australie"><noRegion><name sortKey="Old, Julie M" sort="Old, Julie M" uniqKey="Old J" first="Julie M." last="Old">Julie M. Old</name></noRegion><name sortKey="Deane, Elizabeth" sort="Deane, Elizabeth" uniqKey="Deane E" first="Elizabeth" last="Deane">Elizabeth Deane</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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