Massive prevalence of viral DNA in <i>Ectocarpus</i> (Phaeophyceae, Ectocarpales) from two habitats in the North Atlantic and South Pacific

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dc.contributor.authorMüller, DG
dc.contributor.authorWestermeier, R
dc.contributor.authorMorales, J
dc.contributor.authorReina, GG
dc.contributor.authordel Campo, E
dc.contributor.authorCorrea, JA
dc.contributor.authorRometsch, E
dc.date.accessioned2025-01-21T01:31:33Z
dc.date.available2025-01-21T01:31:33Z
dc.date.issued2000
dc.description.abstractEctocarpus, a cosmopolitan genus of filamentous marine brown algae, contains two species, E. siliculosus and E. fasciculatus. Both species are subject to virus infections, which either destroy the host's sporangia or persist in a latent state without visible symptoms. We used PCR amplification of a viral gene fragment to monitor the infection status of Ectocarpus samples from Gran Canaria Island, North Atlantic, and southern Chile over 26 months.
dc.description.abstractAt both sites, we found persistently high levels of pathogen prevalence: 40-100% of the Ectocarpus specimens from Chile and 55-100% from Gran Canaria contained viral DNA. No evidence for seasonal variation could be detected. We conclude that vertical transmission of viral DNA through mitotic zoospores of the host is the key mechanism for the persistence of the pathogen. The PCR amplification characteristics of samples from Gran Canaria indicate that two different virus genotypes coexist in the same host population.
dc.fuente.origenWOS
dc.identifier.issn0006-8055
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/97090
dc.identifier.wosidWOS:000086298000007
dc.issue.numero2
dc.language.isoen
dc.pagina.final159
dc.pagina.inicio157
dc.revistaBotanica marina
dc.rightsacceso restringido
dc.titleMassive prevalence of viral DNA in <i>Ectocarpus</i> (Phaeophyceae, Ectocarpales) from two habitats in the North Atlantic and South Pacific
dc.typeartículo
dc.volumen43
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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