ABSTRACT Bacteriophages (phages) are viruses that infect and lyse bacteria and have the potential for controlling bacterial diseases. Isolation of phages targeting the cherry pathogen Pseudomonas syringae pv. syringae ( Pss ) led to five distinct phage genotypes. Building on previous in vitro coevolution experiments, the coevolution of the five phages (individually and as a cocktail) with Pss on cherry leaves was conducted in glasshouse and field experiments. Phages effectively reduced Pss numbers on detached leav…

Background and aims: Acute oak decline (AOD), a decline syndrome affecting mature oaks, involves bacterial pathogens which likely act as opportunists under host stress. Trees displaying symptoms (bleeding cankers) appear in localized clusters, not whole stands. This study investigates the potential involvement of local scale factors, in interaction with large scale environmental drivers, in influencing onset and progression of AOD. Methods: AOD-symptomatic (n=30) and asymptomatic trees (n=30) across three UK oak w…

<title>Abstract</title> <bold>Background and aims</bold>: Acute oak decline (AOD), a decline syndrome affecting mature oaks, involves bacterial pathogens which likely act as opportunists under host stress. Trees displaying symptoms (bleeding cankers) appear in localized clusters, not whole stands. This study investigates the potential involvement of local-scale factors, in interaction with large-scale environmental drivers, in influencing onset and progression of AOD. <bold>Methods</bold>: AOD-symptomatic (n=30) a…

ABSTRACT The specific association of the potentially plant‐pathogenic Pseudomonas syringae with Peltigera lichens raises questions about the factors driving this host specificity. To explore this, the metabolic profile of seven lichen species belonging to three genera ( Cladonia , Peltigera and Stereocaulon ) was analysed using LC‐MSMS. In addition, we assessed the growth of P. syringae strains in media supplemented with extracts from each lichen species. This revealed that Peltigera exhibits lower metabolite rich…

Abstract Background and aims Acute oak decline (AOD), a decline syndrome affecting mature oaks, involves bacterial pathogens which likely act as opportunists under host stress. Trees displaying symptoms (bleeding cankers) appear in localized clusters, not whole stands. This study investigates the potential involvement of local-scale factors, in interaction with large-scale environmental drivers, in influencing onset and progression of AOD. Methods AOD-symptomatic ( n = 30) and asymptomatic trees ( n = 30) across t…