Shoot Dieback in Thornless Blackberries in Northern Spain Caused by <i>Diaporthe rudis</i> and <i>Gnomoniopsis idaeicola</i>
A cane disease of a non-commercial thornless blackberry cultivar (genus <i>Rubus</i>, subgenus <i>Rubus</i> Watson) obtained in a breeding program was observed in May 2021 in northern Spain during a field evaluation. Symptoms of the disease appeared in spring and firstly cons...
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MDPI AG
2023-08-01
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| Series: | Horticulturae |
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| Online Access: | https://www.mdpi.com/2311-7524/9/9/965 |
| _version_ | 1797579843188031488 |
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| author | Ana J. González Marta Ciordia |
| author_facet | Ana J. González Marta Ciordia |
| author_sort | Ana J. González |
| collection | DOAJ |
| description | A cane disease of a non-commercial thornless blackberry cultivar (genus <i>Rubus</i>, subgenus <i>Rubus</i> Watson) obtained in a breeding program was observed in May 2021 in northern Spain during a field evaluation. Symptoms of the disease appeared in spring and firstly consisted of dark-brown lesions in the petioles, tips, and intermediate zones of the canes, finally causing the leaves, canes, and lateral shoots to die. Two strains were recovered from infected canes and identified by morphological characteristics and multigene analysis as <i>Gnomoniopsis idaeicola</i> (LPPAF-977) and <i>Diaporthe rudis</i> (LPPAF-981). Pathogenicity tests showed that both fungi caused shoot dieback when artificially inoculated, reproducing the symptoms originally observed. Moreover, tissue necrosis was enhanced when <i>Diaporthe rudis</i> and <i>Gnomoniopsis idaeicola</i> were co-inoculated. This is the first report of <i>Diaporthe rudis</i> and <i>Gnomoniopsis idaeicola</i> causing a potentially serious disease to blackberries in Spain. |
| first_indexed | 2024-03-10T22:42:46Z |
| format | Article |
| id | doaj.art-d2bed2b9824e48b8811da34f6def7f12 |
| institution | Directory Open Access Journal |
| issn | 2311-7524 |
| language | English |
| last_indexed | 2024-03-10T22:42:46Z |
| publishDate | 2023-08-01 |
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| record_format | Article |
| series | Horticulturae |
| spelling | doaj.art-d2bed2b9824e48b8811da34f6def7f122023-11-19T10:58:19ZengMDPI AGHorticulturae2311-75242023-08-019996510.3390/horticulturae9090965Shoot Dieback in Thornless Blackberries in Northern Spain Caused by <i>Diaporthe rudis</i> and <i>Gnomoniopsis idaeicola</i>Ana J. González0Marta Ciordia1Agri-Food Research and Development Regional Service (SERIDA), Ctra AS-267, PK 19, 33300 Villaviciosa, Asturias, SpainAgri-Food Research and Development Regional Service (SERIDA), Ctra AS-267, PK 19, 33300 Villaviciosa, Asturias, SpainA cane disease of a non-commercial thornless blackberry cultivar (genus <i>Rubus</i>, subgenus <i>Rubus</i> Watson) obtained in a breeding program was observed in May 2021 in northern Spain during a field evaluation. Symptoms of the disease appeared in spring and firstly consisted of dark-brown lesions in the petioles, tips, and intermediate zones of the canes, finally causing the leaves, canes, and lateral shoots to die. Two strains were recovered from infected canes and identified by morphological characteristics and multigene analysis as <i>Gnomoniopsis idaeicola</i> (LPPAF-977) and <i>Diaporthe rudis</i> (LPPAF-981). Pathogenicity tests showed that both fungi caused shoot dieback when artificially inoculated, reproducing the symptoms originally observed. Moreover, tissue necrosis was enhanced when <i>Diaporthe rudis</i> and <i>Gnomoniopsis idaeicola</i> were co-inoculated. This is the first report of <i>Diaporthe rudis</i> and <i>Gnomoniopsis idaeicola</i> causing a potentially serious disease to blackberries in Spain.https://www.mdpi.com/2311-7524/9/9/965<i>Rubus</i>fungipathogenITS<i>tub2</i><i>tef-1a</i> |
| spellingShingle | Ana J. González Marta Ciordia Shoot Dieback in Thornless Blackberries in Northern Spain Caused by <i>Diaporthe rudis</i> and <i>Gnomoniopsis idaeicola</i> Horticulturae <i>Rubus</i> fungi pathogen ITS <i>tub2</i> <i>tef-1a</i> |
| title | Shoot Dieback in Thornless Blackberries in Northern Spain Caused by <i>Diaporthe rudis</i> and <i>Gnomoniopsis idaeicola</i> |
| title_full | Shoot Dieback in Thornless Blackberries in Northern Spain Caused by <i>Diaporthe rudis</i> and <i>Gnomoniopsis idaeicola</i> |
| title_fullStr | Shoot Dieback in Thornless Blackberries in Northern Spain Caused by <i>Diaporthe rudis</i> and <i>Gnomoniopsis idaeicola</i> |
| title_full_unstemmed | Shoot Dieback in Thornless Blackberries in Northern Spain Caused by <i>Diaporthe rudis</i> and <i>Gnomoniopsis idaeicola</i> |
| title_short | Shoot Dieback in Thornless Blackberries in Northern Spain Caused by <i>Diaporthe rudis</i> and <i>Gnomoniopsis idaeicola</i> |
| title_sort | shoot dieback in thornless blackberries in northern spain caused by i diaporthe rudis i and i gnomoniopsis idaeicola i |
| topic | <i>Rubus</i> fungi pathogen ITS <i>tub2</i> <i>tef-1a</i> |
| url | https://www.mdpi.com/2311-7524/9/9/965 |
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