Endophytic Botryosphaeriaceae, including five new species, associated with mangrove trees in South Africa

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dc.contributor.author Osorio, J. Alexander
dc.contributor.author Crous, Casparus J.
dc.contributor.author De Beer, Z. Wilhelm
dc.contributor.author Wingfield, Michael J.
dc.contributor.author Roux, Jolanda
dc.date.accessioned 2017-06-27T07:40:55Z
dc.date.issued 2017-04 en
dc.description.abstract Little is known regarding the fungi, especially fungal pathogens, associated with mangroves in Africa. This includes fungi in the Botryosphaeriaceae that comprise numerous opportunistic, stress-associated pathogens often associated with trees affected by environmental and anthropogenically generated stresses, such as those affecting mangroves. We investigated the occurrence of endophytic Botryosphaeriaceae along the entire distribution of mangroves in South Africa. Asymptomatic branches were collected from ten localities and six mangrove species. Isolates resembling species of Botryosphaeriaceae were identified based on multi-gene sequence data of the internal transcribed spacer regions (ITS), including the 5.8S nrRNA, the beta-tubulin (tub2), partial translation elongation factor 1-alpha (tef1-α), and DNA-directed RNA polymerase II second largest subunit (rpb2) gene regions. Inoculation trials were conducted on healthy branches of Avicennia marina and Bruguiera gymnorrhiza to evaluate the potential pathogenicity of the collected species. Fourteen species in the Botryosphaeriaceae belonging to four genera, Botryosphaeria, Diplodia, Lasiodiplodia, and Neofusicoccum were collected, including five new species. Neofusicoccum was the most prevalent genus followed by Lasiodiplodia, with species of Diplodia and Botryosphaeria being the least frequent. The inoculation studies revealed that one of the new species, Lasiodiplodia avicenniae is highly pathogenic to A. marina and could pose a threat to the health of these trees. en_ZA
dc.description.department Forestry and Agricultural Biotechnology Institute (FABI)
dc.description.department Microbiology and Plant Pathology
dc.description.department Plant Production and Soil Science
dc.description.embargo 2018-04-30
dc.description.sponsorship The Department of Science and Technology (DST) and National Research Foundation (NRF) Center of Excellence in Tree Health Biotechnology (CTHB). en
dc.description.uri http://www.elsevier.com/locate/funbio en
dc.identifier.citation Osorio, J.A., Crous, C.J., De Beer, Z.W., Wingfield, M.J. & Roux, J. 2017, 'Endophytic Botryosphaeriaceae, including five new species, associated with mangrove trees in South Africa', Fungal Biology, vol. 121, no. 4, pp. 361-393. en
dc.identifier.issn 1878-6162 (online) en
dc.identifier.issn 1878-6146 (print) en
dc.identifier.other 10.1016/j.funbio.2016.09.004 en
dc.identifier.uri http://hdl.handle.net/2263/61101
dc.language.iso English en
dc.publisher Elsevier en
dc.rights © 2016 British Mycological Society. Published by Elsevier Ltd. All rights reserved. Notice : this is the author’s version of a work that was accepted for publication in Fungal Biology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. A definitive version was subsequently published in Fungal Biology, vol. 121, no. 4, pp. 361-393. 2017. doi : 10.1016/j.funbio.2016.09.004. en
dc.subject Barringtonia racemosa en
dc.subject Ceriops tagal en
dc.subject Host association patterns en
dc.subject Lumnitzera racemosa en
dc.subject Rhizophora mucronata en
dc.title Endophytic Botryosphaeriaceae, including five new species, associated with mangrove trees in South Africa en
dc.type Postprint Article en


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