Mycobacterium salmoniphilum infection in burbot Lota lota
Identifieur interne : 000367 ( Main/Exploration ); précédent : 000366; suivant : 000368Mycobacterium salmoniphilum infection in burbot Lota lota
Auteurs : Mulualem Adam Zerihun [Norvège] ; Vidar Berg [Norvège] ; Jan L. Lyche [Norvège] ; Duncan J. Colquhoun [Norvège] ; Trygve T. Poppe [Norvège]Source :
- Diseases of aquatic organisms [ 0177-5103 ] ; 2011.
Descripteurs français
- Pascal (Inist)
English descriptors
- KwdEn :
Abstract
Burbot Lota lota sampled from lakes Mjøsa and Losna in southeastern Norway between 2005 and 2008 were found to be infected with Mycobacterium salmoniphilum at a culture-positive prevalence of 18.6 and 3.3%, respectively. The condition factor (CF) of mycobacteria-affected fish sampled from Mjøsa in 2008 was lower than the average CF of total sampled fish the same year. Externally visible pathological changes included skin ulceration, petechiae, exopthalmia and cataract. Internally, the infections were associated with capsulated, centrally necrotic granulomas, containing large numbers of acid-fast bacilli, found mainly in the mesenteries, spleen, heart and swim bladder. Mycobacterial isolates recovered on Middlebrook 7H10 agar were confirmed as M. salmoniphilum by phenotypical investigation and by partial sequencing of the 16S rRNA, rpoB and Hsp65 genes as well as the internal transcribed spacer (ITS1) locus. This study adds burbot to the list of fish species susceptible to piscine mycobacteriosis and describes M. salmoniphilum infection in a non-salmonid fish for the first time.
Affiliations:
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Le document en format XML
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Lyche</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>The Norwegian School of Veterinary Science, Ullevaalsveien 72</s1><s2>0037 Oslo</s2><s3>NOR</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>Norvège</country><placeName><settlement type="city">Oslo</settlement><region nuts="2">Østlandet</region></placeName></affiliation></author><author><name sortKey="Colquhoun, Duncan J" sort="Colquhoun, Duncan J" uniqKey="Colquhoun D" first="Duncan J." last="Colquhoun">Duncan J. Colquhoun</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>The Norwegian Veterinary Institute, Ullevaalsveien 68</s1><s2>0106 Oslo</s2><s3>NOR</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Norvège</country><placeName><settlement type="city">Oslo</settlement><region nuts="2">Østlandet</region></placeName></affiliation></author><author><name sortKey="Poppe, Trygve T" sort="Poppe, Trygve T" uniqKey="Poppe T" first="Trygve T." last="Poppe">Trygve T. Poppe</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>The Norwegian School of Veterinary Science, Ullevaalsveien 72</s1><s2>0037 Oslo</s2><s3>NOR</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>Norvège</country><placeName><settlement type="city">Oslo</settlement><region nuts="2">Østlandet</region></placeName></affiliation></author></analytic><series><title level="j" type="main">Diseases of aquatic organisms</title><title level="j" type="abbreviated">Dis. aquat. org.</title><idno type="ISSN">0177-5103</idno><imprint><date when="2011">2011</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Diseases of aquatic organisms</title><title level="j" type="abbreviated">Dis. aquat. org.</title><idno type="ISSN">0177-5103</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Freshwater environment</term><term>Gene</term><term>Infection</term><term>Lota lota</term><term>Mycobacterium</term><term>Phylogeny</term><term>Sequencing</term><term>Taxonomy</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Infection</term><term>Gène</term><term>Séquençage</term><term>Phylogenèse</term><term>Milieu eau douce</term><term>Systématique</term><term>Mycobacterium</term><term>Lota lota</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Burbot Lota lota sampled from lakes Mjøsa and Losna in southeastern Norway between 2005 and 2008 were found to be infected with Mycobacterium salmoniphilum at a culture-positive prevalence of 18.6 and 3.3%, respectively. The condition factor (CF) of mycobacteria-affected fish sampled from Mjøsa in 2008 was lower than the average CF of total sampled fish the same year. Externally visible pathological changes included skin ulceration, petechiae, exopthalmia and cataract. Internally, the infections were associated with capsulated, centrally necrotic granulomas, containing large numbers of acid-fast bacilli, found mainly in the mesenteries, spleen, heart and swim bladder. Mycobacterial isolates recovered on Middlebrook 7H10 agar were confirmed as M. salmoniphilum by phenotypical investigation and by partial sequencing of the 16S rRNA, rpoB and Hsp65 genes as well as the internal transcribed spacer (ITS1) locus. This study adds burbot to the list of fish species susceptible to piscine mycobacteriosis and describes M. salmoniphilum infection in a non-salmonid fish for the first time.</div></front></TEI><affiliations><list><country><li>Norvège</li></country><region><li>Østlandet</li></region><settlement><li>Oslo</li></settlement></list><tree><country name="Norvège"><region name="Østlandet"><name sortKey="Adam Zerihun, Mulualem" sort="Adam Zerihun, Mulualem" uniqKey="Adam Zerihun M" first="Mulualem" last="Adam Zerihun">Mulualem Adam Zerihun</name></region><name sortKey="Berg, Vidar" sort="Berg, Vidar" uniqKey="Berg V" first="Vidar" last="Berg">Vidar Berg</name><name sortKey="Colquhoun, Duncan J" sort="Colquhoun, Duncan J" uniqKey="Colquhoun D" first="Duncan J." last="Colquhoun">Duncan J. Colquhoun</name><name sortKey="Lyche, Jan L" sort="Lyche, Jan L" uniqKey="Lyche J" first="Jan L." last="Lyche">Jan L. Lyche</name><name sortKey="Poppe, Trygve T" sort="Poppe, Trygve T" uniqKey="Poppe T" first="Trygve T." last="Poppe">Trygve T. Poppe</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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