Comparison of Bacterial Community of Healthy and Erwinia amylovora Infected Applesopen access
- Kim, Su-Hyeon; Cho, Gyoengjun; Lee, Su In; Kim, Da-Ran; Kwak, Youn-Sig
- Issue Date
- KOREAN SOC PLANT PATHOLOGY
- endosphere; episphere; Erwinia amylovora; microbiome; rhizosphere
- PLANT PATHOLOGY JOURNAL, v.37, no.4, pp.396 - 403
- Journal Title
- PLANT PATHOLOGY JOURNAL
- Start Page
- End Page
- Fire blight disease, caused by Erwinia amylovora, could damage rosaceous plants such as apples, pears, and raspberries. In this study, we designed to understand how E. amylovora affected other bacterial communities on apple rhizosphere; twig and fruit endosphere; and leaf, and fruit episphere. Limited studies on the understanding of the microbial community of apples and changes the community structure by occurrence of the fire blight disease were conducted. As result of these experiments, the infected trees had low species richness and operational taxonomic unit diversity when compared to healthy trees. Rhizospheric bacterial communities were stable regardless of infection. But the communities in endosphere and episphere were significanlty affected by E. amylovora infection. We also found that several metabolic pathways differ significantly between infected and healthy trees. In particular, we observed differences in sugar metabolites. The finding provides that sucrose metabolites are important for colonization of E. amylovora in host tissue. Our results provide fundamental information on the microbial community structures between E. amylovora infected and uninfected trees, which will contribute to developing novel control strategies for the fire blight disease.
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