Erwinia, a Plant Pathogen

Comparative analysis of the microbiomes of strawberry wild species Fragaria nilgerrensis and cultivated variety Akihime using amplicon-based next-generation sequencing

“…Erwinia amylovora can causes bacterial blight in strawberries ( Öztürk and Soylu, 2022 ), and Xanthomonas fragariae can causes the angular leaf spot and crown rot of strawberries ( Timilsina et al, 2020 ; Song et al, 2021 ). At the genus level, the relative abundances of Erwinia and Xanthomonas ( Expert et al, 2004 ; Timilsina et al, 2020 ) in the root endosphere samples of Akihime were significantly higher than those in the F. nilgerrensis samples ( p < 0.05) ( Figure 4F ). In addition, the Rhodococcus fascians taxa (APS), which can cause strawberry cauliflower disease, was detected in the rhizosphere soil and root endosphere samples of Akihime (data not shown).…”

“…These taxa include Fusarium incarnatum (which can cause strawberry wilt, root rot and fruit rot) ( Ayoubi and Soleimani, 2016 ), Rhizoctonia fragariae (which can cause strawberry root rot) ( Erper et al, 2021 ; Su et al, 2022 ), Dactylonectria pauciseptata , and Dactylonectria torresensis (which is associated with black root rot of strawberry) ( Chen et al, 2021 ) ( Figure 6 ). In addition, the potential bacterial pathogens Erwinia and Xanthomonas ( Expert et al, 2004 ; Timilsina et al, 2020 ) were also detected in the root endosphere samples of Akihime with higher relative abundances than in F. nilgerrensis samples. Although many potential pathogens were detected in the Akihime samples, no evident disease symptoms were observed during the sampling, which is similar to the findings on Fragaria × ananassa ( Sangiorgio et al, 2022 ).…”