Bacterial blight induced shifts in endophytic microbiome of rice leaves and the enrichment of specific bacterial strains with pathogen antagonism

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dc.contributor.author
Yang, Fenghuan
Zhang, Jie
Zhang, Huaying
Ji, Guanghai
Zeng, Liexian
Li, Yan
Yu, Chao
Fernando, W. G. Dilantha
Chen, Wen
dc.date.accepted
2020-06-11
dc.date.accessioned
2024-12-11T17:58:57Z
dc.date.available
2024-12-11T17:58:57Z
dc.date.issued
2020-07-23
dc.date.submitted
2020-03-11
dc.description.abstract - en
The endophytic microbiome plays an important role in plant health and pathogenesis. However, little is known about its relationship with bacterial blight (BB) of rice caused by Xanthomonas oryzae pv. oryzae (Xoo). The current study compared the community compositional structure of the endophytic microbiota in healthy and BB symptomatic leaves of rice through a metabarcoding approach, which revealed BB induced a decrease in the alpha-diversity of the fungal communities and an increase in the bacterial communities. BB-diseased rice leaves were enriched with saprophytic fungi that are capable of decomposing plant cell walls (e.g. Khuskia spp. and Leptosphaerulina spp.), while healthy rice leaves were found to be significantly more abundant with plant pathogens or mycotoxin-producing fungi (e.g. Fusarium, Magnaporthe, and Aspergillus). The endophytic bacterial communities of BB-diseased leaves were significantly enriched with Pantoea, Pseudomonas, and Curtobacterium, strains. Pantoea sp. isolates from BB leaves are identified as promising candidates for the biocontrol of BB for their ability to inhibit in vitro growth of Xoo, suppress the development of rice BB disease, and possess multiple PGP characteristics. Our study revealed BB-induced complexed changes in the endophytic fungal and bacterial communities of rice leaves and demonstrated that BB-associated enrichment of some endophytic bacterial taxa, e.g. Pantoea sp. isolates, may play important roles in suppressing the development of BB disease in rice.
dc.identifier.citation
Yang, F., Zhang, J., Zhang, H., Ji, G., Zeng, L., Li, Y., Yu, C., Fernando, W. G., & Chen, W. (2020). Bacterial blight induced shifts in endophytic microbiome of rice leaves and the enrichment of specific bacterial strains with pathogen antagonism. Frontiers in Plant Science, 11. https://doi.org/10.3389/fpls.2020.00963
dc.identifier.doi
https://doi.org/10.3389/fpls.2020.00963
dc.identifier.issn
1664-462X
dc.identifier.uri
https://open-science.canada.ca/handle/123456789/3198
dc.language.iso
en
dc.publisher - en
Frontiers Media S.A.
dc.rights - en
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.rights - fr
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.rights.uri - en
https://creativecommons.org/licenses/by/4.0/
dc.rights.uri - fr
https://creativecommons.org/licenses/by/4.0/deed.fr
dc.subject - en
Agriculture
Crops
Plant diseases
Bacteria
dc.subject - fr
Agriculture
Cultures
Maladie des plantes
Bactérie
dc.subject.en - en
Agriculture
Crops
Plant diseases
Bacteria
dc.subject.fr - fr
Agriculture
Cultures
Maladie des plantes
Bactérie
dc.title - en
Bacterial blight induced shifts in endophytic microbiome of rice leaves and the enrichment of specific bacterial strains with pathogen antagonism
dc.type - en
Article
dc.type - fr
Article
local.acceptedmanuscript.articlenum
963
local.article.journaltitle - en
Frontiers in Plant Science
local.article.journalvolume
11
local.peerreview - en
Yes
local.peerreview - fr
Oui
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