Postharvest Development of 'Candidatus Liberibacter solanacearum' in Late-Season Infected Potato Tubers under Commercial Storage Conditions

Zebra chip (ZC) disease of potato is associated with the putative pathogen 'Candidatus Liberibacter solanacearum', which is transmitted by the potato psyllid Bactericera cockerelli (Hem., Triozidae). The present study was initiated to investigate 'Ca. L. solanacearum' development...

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Veröffentlicht in:Plant disease. - 1997. - 102(2018), 3 vom: 01. März, Seite 561-568
1. Verfasser: Rashed, Arash (VerfasserIn)
Weitere Verfasser: Olsen, Nora, Wallis, Christopher M, Paetzold, Li, Woodell, Lynn, Rashidi, Mahnaz, Workneh, Fekede, Rush, Charles M
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2018
Zugriff auf das übergeordnete Werk:Plant disease
Schlagworte:Journal Article Phenols
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520 |a Zebra chip (ZC) disease of potato is associated with the putative pathogen 'Candidatus Liberibacter solanacearum', which is transmitted by the potato psyllid Bactericera cockerelli (Hem., Triozidae). The present study was initiated to investigate 'Ca. L. solanacearum' development during and following typical commercial storage practices. Using bacteriliferous psyllids, Russet Norkotah potato tubers were infested in field cages 14, 10, and 4 days before harvest. Changes in 'Ca. L. solanacearum' detection rate, 'Ca. L. solanacearum' titer, and concentrations of phenolic compounds were documented throughout storage. 'Ca. L. solanacearum' titer continued to increase during storage. Although significant increases in the frequency of 'Ca. L. solanacearum' detection were observed in all infestation treatments, the impact of 'Ca. L. solanacearum' infection on tuber quality remained comparatively low in plants infected 4 days before harvest, because the majority of the tubers remained asymptomatic. Minimizing storage and retail chain movement durations would help to limit 'Ca. L. solanacearum' impact on tuber quality in tubers infected 14 and 10 days before harvest. This study also demonstrated that 'Ca. L. solanacearum' can relocate from a newly infected leaf to a tuber in as little as 4 days. Psyllid management is recommended until at least 4 days before green harvest, when psyllid pressure is high in fields in which tubers are destined for commercial storage 
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700 1 |a Olsen, Nora  |e verfasserin  |4 aut 
700 1 |a Wallis, Christopher M  |e verfasserin  |4 aut 
700 1 |a Paetzold, Li  |e verfasserin  |4 aut 
700 1 |a Woodell, Lynn  |e verfasserin  |4 aut 
700 1 |a Rashidi, Mahnaz  |e verfasserin  |4 aut 
700 1 |a Workneh, Fekede  |e verfasserin  |4 aut 
700 1 |a Rush, Charles M  |e verfasserin  |4 aut 
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