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dc.contributor.authorHerrero, Maria-Luz
dc.contributor.authorBrurberg, May Bente
dc.contributor.authorAlayon, Dario Isidro Ojeda
dc.contributor.authorRoleda, Michael
dc.date.accessioned2021-03-01T11:28:36Z
dc.date.available2021-03-01T11:28:36Z
dc.date.created2020-05-06T14:23:39Z
dc.date.issued2020-02-25
dc.identifier.citationAlgae. 2020, 35 (1), 79-89.en_US
dc.identifier.issn1226-2617
dc.identifier.urihttps://hdl.handle.net/11250/2730901
dc.description.abstractPythium species are ubiquitous organisms known to be pathogens to terrestrial plants and marine algae. While several Pythium species (hereafter, Pythium) are described as pathogens to marine red algae, little is known about the pathogenicity of Pythium on marine green algae. A strain of a Pythium was isolated from a taxonomically unresolved filamentous Ulva collected in an intertidal area of Oslo fjord. Its pathogenicity to a euryhaline Ulva intestinalis collected in the same area was subsequently tested under salinities of 0, 15, and 30 parts per thousand (ppt). The Pythium isolate readily infected U. intestinalis and decimated the filaments at 0 ppt. Mycelium survived on U. intestinalis filaments for at least 2 weeks at 15 and 30 ppt, but the infection did not progress. Sporulation was not observed in the infected algal filaments at any salinity. Conversely, Pythium sporulated on infected grass pieces at 0, 15, and 30 ppt. High salinity retarded sporulation, but did not prevent it. Our Pythium isolate produced filamentous non-inflated sporangia. The sexual stage was never observed and phylogenetic analysis using internal transcribed spacer suggest this isolate belongs to the clade B2. We conclude that the Pythium found in the Oslo fjord was a pathogen of U. intestinalis under low salinity.en_US
dc.language.isoengen_US
dc.publisherThe Korean Society of Phycologyen_US
dc.rightsNavngivelse-Ikkekommersiell 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/deed.no*
dc.titleOccurrence and pathogenicity of Pythium (Oomycota) on Ulvaspecies (Chlorophyta) at different salinitiesen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionpublishedVersionen_US
dc.rights.holder© 2020 The Korean Society of Phycologyen_US
dc.source.pagenumber79-89en_US
dc.source.volume35en_US
dc.source.journalAlgaeen_US
dc.source.issue1en_US
dc.identifier.doi10.4490/algae.2020.35.2.25
dc.identifier.cristin1809681
dc.relation.projectArtsdatabanken: 70184222en_US
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


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Navngivelse-Ikkekommersiell 4.0 Internasjonal
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