First report of canker and dieback caused by Neofusicoccum parvum and Diplodia olivarum on oleaster in Italy
Oleaster (Olea europaea subsp. europaea var. sylvestris) is a sclerophyllous forest tree occurring in the Mediterranean region including Sardinia (Italy). Oleaster suffers from few major diseases, but since 2017 a new and unusual disease leading to the death of both young and old trees has been obse...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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University of Bologna
2020-06-01
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| Series: | Italian Journal of Mycology |
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| Online Access: | https://italianmycology.unibo.it/article/view/11048 |
| _version_ | 1818478874004029440 |
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| author | Daniele Manca Carlo Bregant Lucia Maddau Claudia Pinna Lucio Montecchio Benedetto Linaldeddu |
| author_facet | Daniele Manca Carlo Bregant Lucia Maddau Claudia Pinna Lucio Montecchio Benedetto Linaldeddu |
| author_sort | Daniele Manca |
| collection | DOAJ |
| description | Oleaster (Olea europaea subsp. europaea var. sylvestris) is a sclerophyllous forest tree occurring in the Mediterranean region including Sardinia (Italy). Oleaster suffers from few major diseases, but since 2017 a new and unusual disease leading to the death of both young and old trees has been observed in several woodlands of high ecological value in north-eastern Sardinia. Declining trees showed a variety of symptoms including leaf chlorosis, dieback and sunken canker on trunk and branches. The cankers often exuded a white to orange sap, giving them the appearance of bleeding, which gradually dried to a whitish gluey mass on the bark. Symptomatic wood samples yielded fungal isolates belonging to five fungal species: Diplodia olivarum, Dothiorella sarmentorum, Neofusicoccum parvum, Rosellinia corticium and unidentified Pestalotiopsis sp. In pathogenicity trials Neofusicoccum parvum proved to be the most aggressive species. Our results provide the first evidence for a combined involvement of different Botryosphaeriaceae species in the aetiology of a new oleaster disease. |
| first_indexed | 2024-12-10T09:53:37Z |
| format | Article |
| id | doaj.art-0519f17823d548b98c0ca18b6dfbbd74 |
| institution | Directory Open Access Journal |
| issn | 2531-7342 |
| language | English |
| last_indexed | 2024-12-10T09:53:37Z |
| publishDate | 2020-06-01 |
| publisher | University of Bologna |
| record_format | Article |
| series | Italian Journal of Mycology |
| spelling | doaj.art-0519f17823d548b98c0ca18b6dfbbd742022-12-22T01:53:35ZengUniversity of BolognaItalian Journal of Mycology2531-73422020-06-01491859110.6092/issn.2531-7342/110489351First report of canker and dieback caused by Neofusicoccum parvum and Diplodia olivarum on oleaster in ItalyDaniele Manca0Carlo BregantLucia Maddau1Claudia Pinna2Lucio Montecchio3Benedetto Linaldeddu4Università di PadovaUniversità di SassariUniversità di SassariUniversità di PadovaUniversity of PaduaOleaster (Olea europaea subsp. europaea var. sylvestris) is a sclerophyllous forest tree occurring in the Mediterranean region including Sardinia (Italy). Oleaster suffers from few major diseases, but since 2017 a new and unusual disease leading to the death of both young and old trees has been observed in several woodlands of high ecological value in north-eastern Sardinia. Declining trees showed a variety of symptoms including leaf chlorosis, dieback and sunken canker on trunk and branches. The cankers often exuded a white to orange sap, giving them the appearance of bleeding, which gradually dried to a whitish gluey mass on the bark. Symptomatic wood samples yielded fungal isolates belonging to five fungal species: Diplodia olivarum, Dothiorella sarmentorum, Neofusicoccum parvum, Rosellinia corticium and unidentified Pestalotiopsis sp. In pathogenicity trials Neofusicoccum parvum proved to be the most aggressive species. Our results provide the first evidence for a combined involvement of different Botryosphaeriaceae species in the aetiology of a new oleaster disease.https://italianmycology.unibo.it/article/view/11048sardiniaemerging diseasesbotryosphaeriaceaepestalotiopsisrosellinia |
| spellingShingle | Daniele Manca Carlo Bregant Lucia Maddau Claudia Pinna Lucio Montecchio Benedetto Linaldeddu First report of canker and dieback caused by Neofusicoccum parvum and Diplodia olivarum on oleaster in Italy Italian Journal of Mycology sardinia emerging diseases botryosphaeriaceae pestalotiopsis rosellinia |
| title | First report of canker and dieback caused by Neofusicoccum parvum and Diplodia olivarum on oleaster in Italy |
| title_full | First report of canker and dieback caused by Neofusicoccum parvum and Diplodia olivarum on oleaster in Italy |
| title_fullStr | First report of canker and dieback caused by Neofusicoccum parvum and Diplodia olivarum on oleaster in Italy |
| title_full_unstemmed | First report of canker and dieback caused by Neofusicoccum parvum and Diplodia olivarum on oleaster in Italy |
| title_short | First report of canker and dieback caused by Neofusicoccum parvum and Diplodia olivarum on oleaster in Italy |
| title_sort | first report of canker and dieback caused by neofusicoccum parvum and diplodia olivarum on oleaster in italy |
| topic | sardinia emerging diseases botryosphaeriaceae pestalotiopsis rosellinia |
| url | https://italianmycology.unibo.it/article/view/11048 |
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