Identifying the distribution and causal pathogens of blueberry stem blight disease in Alabama and nearby states

Botryosphaeria stem blight is a fungal disease of blueberry caused by members of the Botryosphaeriaceae family, which can lead to rapid wilting of leaves and stems, often resulting in significant yield loss and even plant death. Botryosphaeria stem blight is a major disease in Alabama, however, info...

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Veröffentlicht in:Plant disease. - 1997. - (2025) vom: 01. Jan.
1. Verfasser: Amodu, Ayodele (VerfasserIn)
Weitere Verfasser: Oliver, Jonathan E, Lawrence, Kathy S, Patel, Sejal, Koebernick, Jenny, Patel, Jinesh, Coneva, Elina Dimitrova, Ru, Sushan
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2025
Zugriff auf das übergeordnete Werk:Plant disease
Schlagworte:Journal Article Causal Agent Crop Type Fruit Fungi Pathogen diversity Subject Areas small fruits
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520 |a Botryosphaeria stem blight is a fungal disease of blueberry caused by members of the Botryosphaeriaceae family, which can lead to rapid wilting of leaves and stems, often resulting in significant yield loss and even plant death. Botryosphaeria stem blight is a major disease in Alabama, however, information on the distribution and causal pathogens for stem blight in Alabama is limited. This study surveyed blueberry farms in Alabama and nearby parts of Georgia and Mississippi to reveal the occurrence, species identities, and virulence of causal pathogens for Botryosphaeria stem blight. As part of this work, a total of 45 symptomatic blueberry samples were collected between 2021 and 2023. Phylogenetic analysis based on DNA sequences of the ITS, β-tubulin, and EF1-α genomic regions revealed that Botryosphaeriaceae (34%) was the most common family associated with disease samples, followed by Sporocadaceae (21%), Diaporthaceae (13%), Pleosporaceae (9%), and other families. Within Botryosphaeriaceae, Neofusicoccum and Lasiodiplodia were the most common genera identified. Virulence testing on the blueberry cultivar 'Vernon' using an attached-stem assay showed that isolates of Neofusicoccum kwambonambiense, Neofusicoccum sp., Lasiodiplodia sp., N. parvum, and N. ribis caused the longest lesion length four weeks after inoculation, compared to isolates of other genera and species. Results of this study provide the latest information on the distribution, pathogenicity, and virulence of blueberry stem blight pathogens in Alabama and nearby states. Aggressive isolates identified in this study may be useful for screening blueberry cultivars for stem blight tolerance 
650 4 |a Journal Article 
650 4 |a Causal Agent 
650 4 |a Crop Type 
650 4 |a Fruit 
650 4 |a Fungi 
650 4 |a Pathogen diversity 
650 4 |a Subject Areas 
650 4 |a small fruits 
700 1 |a Oliver, Jonathan E  |e verfasserin  |4 aut 
700 1 |a Lawrence, Kathy S  |e verfasserin  |4 aut 
700 1 |a Patel, Sejal  |e verfasserin  |4 aut 
700 1 |a Koebernick, Jenny  |e verfasserin  |4 aut 
700 1 |a Patel, Jinesh  |e verfasserin  |4 aut 
700 1 |a Coneva, Elina Dimitrova  |e verfasserin  |4 aut 
700 1 |a Ru, Sushan  |e verfasserin  |4 aut 
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