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Early survival of Quercus ilex subspecies from different populations after infections and co-infections by multiple Phytophthora species

2017-06Journal article Restricted access
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dc.contributor.authorCorcobado, T.
dc.contributor.authorMiranda-Torres, J. J.
dc.contributor.authorMartin-Garcia, J.
dc.contributor.authorJung, Thomas
dc.contributor.authorSolla, A.
dc.date.accessioned2019-11-20T15:07:34Z
dc.date.available2019-11-20T15:07:34Z
dc.date.issued2017-06
dc.description.abstractForests in Europe are threatened by increased diversity of Phytophthora species, but effects on trees of simultaneous infections by Phytophthora and ecological consequences of their coexistence are unknown. This study explored variation in early survival of Quercus ilex to Phytophthora infections and assessed interactions between Phytophthora species when trees were co-infected. Three Phytophthora species (P. cinnamomi, P. gonapodyides and P. quercina), seeds from 16 populations of Q. ilex (ballota and ilex subspecies) and two infection times were used as sources of variation in two experiments. The influence of Phytophthora species, Q. ilex subspecies and populations on plant germination and survival were analysed using generalized linear mixed models and survival analysis techniques. Germination rates were not influenced by Phytophthora spp. (P = 0.194) but by the subspecies and populations of Q. ilex (P < 0.001). In Phytophthora-infested soils, Q. ilex subsp. ilex germinated at higher rates than Q. ilex subsp. ballota. Plant survival was strongly influenced by Phytophthora species (P < 0.001), not by the subspecies and populations of Q. ilex. Seedling mortality was reduced and delayed if a less virulent Phytophthora species infected plants prior to infection by a more virulent Phytophthora species. The results help to explain oak decline syndrome and the lack of natural and artificial regeneration of Q. ilex forests. Lack of interspecific variability of early survival to Phytophthora spp. discourages direct sowing for artificial reforestation programmes. Large, thick seeds, giving plants rapid growth, are advantageous traits when soils are infested with Phytophthora spp.
dc.description.sponsorshipExtremadura Regional Government (Junta de Extremadura)
dc.description.sponsorshipSpanish Ministry of Science and Innovation (Ministerio de Ciencia e Innovacion) [AGL2011-30438-C02-02]
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1111/ppa.12627
dc.identifier.issn0032-0862
dc.identifier.issn1365-3059
dc.identifier.urihttp://hdl.handle.net/10400.1/13103
dc.language.isoeng
dc.peerreviewedyes
dc.publisherWiley
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectHolm oak
dc.subjectRiparian ecosystems
dc.subjectSouthern Spain
dc.subjectRoot-rot
dc.subjectCinnamomi
dc.subjectDecline
dc.subjectTrees
dc.subjectPathogens
dc.subjectDefense
dc.subjectForest
dc.titleEarly survival of Quercus ilex subspecies from different populations after infections and co-infections by multiple Phytophthora species
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage804
oaire.citation.issue5
oaire.citation.startPage792
oaire.citation.titlePlant Pathology
oaire.citation.volume66
person.familyNameJung
person.givenNameThomas
person.identifier.ciencia-id6A14-0727-EDCD
person.identifier.orcid0000-0003-2034-0718
person.identifier.ridF-1665-2013
person.identifier.scopus-author-id7201389242
rcaap.rightsrestrictedAccess
rcaap.typearticle
relation.isAuthorOfPublication76dbda58-7585-45f6-82f3-0ffee7fa58b1
relation.isAuthorOfPublication.latestForDiscovery76dbda58-7585-45f6-82f3-0ffee7fa58b1

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