What question did this study set out to answer?

To identify and characterize the causal bacterial pathogen responsible for an outbreak of rice bacterial blight affecting over 48% of plants in a rice field.

August 19, 2026Plant Disease

First report of rice bacterial blight caused by Pantoea ananatis on rice in Jiangsu Province, China

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Authors

XCXian Chen BTBao Tang OAO. Afolabi

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Overview

Pathological investigation identifies Pantoea ananatis as the causal pathogen of rice bacterial blight in crops, highlighting an emerging threat to agricultural disease management.

Key Points

To identify and characterize the causal bacterial pathogen responsible for an outbreak of rice bacterial blight affecting over 48% of plants in a rice field.
Isolated bacterial strains from symptomatic leaves and examined cellular morphology using transmission electron microscopy (n=20).
Extracted genomic DNA using the CTAB method and performed PCR amplification and sequencing of the 16S rRNA and gyrB genes.
Conducted pathogenicity assays on four-to-five-week-old rice plants via leaf clipping in a greenhouse to fulfill Koch's postulates.
Isolated rod-shaped bacterial cells measuring 2.11–2.92 μm by 0.73–0.91 μm, with 16S rRNA (>99% identity) and gyrB (98% homology) confirming identification as Pantoea ananatis.
Inoculated rice plants developed characteristic white-yellow leaf blight symptoms within 14 days, and re-isolated strains confirmed Koch's postulates.

Cite This Study

Chen et al. (2026) studied this question.

synapsesocial.com/papers/6a85643903308d306e2d7ced https://doi.org/10.1094/pdis-02-26-0407-pdn

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August 19, 2026Plant Disease

First report of rice bacterial blight caused by Pantoea ananatis on rice in Jiangsu Province, China

View Full Paper

Ask AI

Bookmark

Authors

XCXian Chen BTBao Tang OAO. Afolabi

Discussion

Member takes

Overview

Pathological investigation identifies Pantoea ananatis as the causal pathogen of rice bacterial blight in crops, highlighting an emerging threat to agricultural disease management.

Key Points

To identify and characterize the causal bacterial pathogen responsible for an outbreak of rice bacterial blight affecting over 48% of plants in a rice field.
Isolated bacterial strains from symptomatic leaves and examined cellular morphology using transmission electron microscopy (n=20).
Extracted genomic DNA using the CTAB method and performed PCR amplification and sequencing of the 16S rRNA and gyrB genes.
Conducted pathogenicity assays on four-to-five-week-old rice plants via leaf clipping in a greenhouse to fulfill Koch's postulates.
Isolated rod-shaped bacterial cells measuring 2.11–2.92 μm by 0.73–0.91 μm, with 16S rRNA (>99% identity) and gyrB (98% homology) confirming identification as Pantoea ananatis.
Inoculated rice plants developed characteristic white-yellow leaf blight symptoms within 14 days, and re-isolated strains confirmed Koch's postulates.

Cite This Study

Chen et al. (2026) studied this question.

synapsesocial.com/papers/6a85643903308d306e2d7ced https://doi.org/10.1094/pdis-02-26-0407-pdn

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