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Alteration of Bacterial Wilt Resistance in Tomato Plant by Microbiota Transplant.


ABSTRACT: Plant-associated microbiota plays an important role in plant disease resistance. Bacterial wilt resistance of tomato is a function of the quantitative trait of tomato plants; however, the mechanism underlying quantitative resistance is unexplored. In this study, we hypothesized that rhizosphere microbiota affects the resistance of tomato plants against soil-borne bacterial wilt caused by Ralstonia solanacearum. This hypothesis was tested using a tomato cultivar grown in a defined soil with various microbiota transplants. The bacterial wilt-resistant Hawaii 7996 tomato cultivar exhibited marked suppression and induction of disease severity after treatment with upland soil-derived and forest soil-derived microbiotas, respectively, whereas the transplants did not affect the disease severity in the susceptible tomato cultivar Moneymaker. The differential resistance of Hawaii 7996 to bacterial wilt was abolished by diluted or heat-killed microbiota transplantation. Microbial community analysis revealed the transplant-specific distinct community structure in the tomato rhizosphere and the significant enrichment of specific microbial operational taxonomic units (OTUs) in the rhizosphere of the upland soil microbiota-treated Hawaii 7996. These results suggest that the specific transplanted microbiota alters the bacterial wilt resistance in the resistant cultivar potentially through a priority effect.

SUBMITTER: Choi K 

PROVIDER: S-EPMC7427413 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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Alteration of Bacterial Wilt Resistance in Tomato Plant by Microbiota Transplant.

Choi Kihyuck K   Choi Jinhee J   Lee Pyeong An PA   Roy Nazish N   Khan Raees R   Lee Hyoung Ju HJ   Weon Hang Yeon HY   Kong Hyun Gi HG   Lee Seon-Woo SW  

Frontiers in plant science 20200807


Plant-associated microbiota plays an important role in plant disease resistance. Bacterial wilt resistance of tomato is a function of the quantitative trait of tomato plants; however, the mechanism underlying quantitative resistance is unexplored. In this study, we hypothesized that rhizosphere microbiota affects the resistance of tomato plants against soil-borne bacterial wilt caused by <i>Ralstonia solanacearum</i>. This hypothesis was tested using a tomato cultivar grown in a defined soil wit  ...[more]

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