Armillaria root rot spreading into a natural woody ecosystem in South Africa

dc.contributor.authorCoetzee, Martin Petrus Albertus
dc.contributor.authorMusasira, N.Y.
dc.contributor.authorRoux, Jolanda
dc.contributor.authorRoets, F.
dc.contributor.authorVan der Merwe, Nicolaas Albertus (Albie)
dc.contributor.authorWingfield, Michael J.
dc.contributor.emailmartin.coetzee@fabi.up.ac.zaen_ZA
dc.date.accessioned2018-11-12T13:01:19Z
dc.date.issued2018-05
dc.description.abstractSigns and symptoms of a disease similar to those of armillaria root rot have recently been observed on various native woody plants on the foothills of Table Mountain in South Africa, one of the most botanically diverse natural environments globally. This is of concern because the root rot fungus Armillaria mellea has previously been shown to be an alien pathogen of European origin in planted gardens in the City of Cape Town. An aim of this study was to identify the cause of the root rot disease on infected plants. Based on DNA‐sequence phylogeny, it was shown that isolates collected from at least 16 native tree and woody shrub species represented the non‐native A. mellea. Microsatellite markers were then used to determine the genetic diversity and population structure of the A. mellea isolates from Table Mountain and two planted gardens where the pathogen has previously been found. Population genetic analyses revealed low levels of gene diversity and no population differentiation amongst the three populations. The results provide the first firm evidence that A. mellea has escaped the planted environment and invaded a sensitive and ecologically important natural woody environment in South Africa. This is only the second definitive case of a non‐native tree pathogen invading a natural ecosystem in the country.en_ZA
dc.description.departmentForestry and Agricultural Biotechnology Institute (FABI)en_ZA
dc.description.departmentGeneticsen_ZA
dc.description.departmentPlant Production and Soil Scienceen_ZA
dc.description.embargo2019-05-01
dc.description.librarianhj2018en_ZA
dc.description.sponsorshipThis work is based on the research supported by the National Research Foundation of South Africa (NRF; grant 91570). The members of the Tree Protection Co-operative Programme (TPCP), the THRIP initiative of the Department of Trade and Industry, the DST/NRF Centre of Excellence in Tree Health Biotechnology (CTHB) of the Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, South Africa.en_ZA
dc.description.urihttp://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1365-3059en_ZA
dc.identifier.citationCoetzee, M.P.A., Musasira, N.Y., Roux, J. et al. 2018, 'Armillaria root rot spreading into a natural woody ecosystem in South Africa', Plant Pathology, vol. 67, no. 4, pp. 883-891.en_ZA
dc.identifier.issn0032-0862 (print)
dc.identifier.issn1365-3059 (online)
dc.identifier.other10.1111/ppa.12804
dc.identifier.urihttp://hdl.handle.net/2263/67204
dc.language.isoenen_ZA
dc.publisherWileyen_ZA
dc.rights© 2017 British Society for Plant Pathology. This is the pre-peer reviewed version of the following article : 'Armillaria root rot spreading into a natural woody ecosystem in South Africa', Plant Pathology, vol. 67, no. 4, pp. 883-891, 2018, doi : 10.1111/ppa.12804. The definite version is available at : http://onlinelibrary.wiley.comjournal/10.1111/(ISSN)1365-3059.en_ZA
dc.subjectArmillaria melleaen_ZA
dc.subjectInvasion biologyen_ZA
dc.subjectPathogen introductionen_ZA
dc.subjectPopulation geneticsen_ZA
dc.subjectPhytophthora cinnamomien_ZA
dc.subjectPopulation structureen_ZA
dc.subjectGenetic diversityen_ZA
dc.subjectCausal agenten_ZA
dc.subjectDNA sequenceen_ZA
dc.subjectDispersalen_ZA
dc.subjectArmillaria root roten_ZA
dc.subjectSouth Africa (SA)en_ZA
dc.titleArmillaria root rot spreading into a natural woody ecosystem in South Africaen_ZA
dc.typePostprint Articleen_ZA

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