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Related Concept Videos

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Coryneform bacteria are gram-positive, aerobic, nonmotile rods that exhibit irregular, club-shaped, or V-shaped arrangements. Their V-shape results from snapping division, where the inner cell wall layer forms the cross-wall, while the outer layer remains intact until it ruptures on one side, causing the daughter cells to bend away.The primary genera are Corynebacterium and Arthrobacter. Corynebacterium includes diverse species, ranging from saprophytes to pathogens like Corynebacterium...
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Related Experiment Video

Updated: Jul 13, 2025

Monitoring Bacterial Colonization and Maintenance on Arabidopsis thaliana Roots in a Floating Hydroponic System
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Rice bacterial leaf blight drives rhizosphere microbial assembly and function adaptation.

Hubiao Jiang1, Jinyan Luo2, Quanhong Liu1

  • 1State Key Laboratory of Rice Biology and Breeding, Institute of Biotechnology, Zhejiang University , Hangzhou , China.

Microbiology Spectrum
|October 17, 2023
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Summary

Bacterial leaf blight (BLB) significantly impacts rhizosphere bacteria, reducing diversity but altering microbial networks. Specific bacterial genera like Streptomyces and Bacillus show increased abundance, offering insights into plant-microbiome interactions for sustainable agriculture.

Keywords:
metagenomicsmicrobiome assemblyrhizosphere microbiomerice bacterial leaf blight

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Area of Science:

  • Microbiology
  • Plant Pathology
  • Ecology

Background:

  • Plant diseases, such as bacterial leaf blight (BLB), can disrupt the delicate balance of plant-associated microbial communities.
  • Understanding these disruptions is crucial for developing sustainable agricultural practices.

Purpose of the Study:

  • To investigate the impact of bacterial leaf blight (BLB) on the rhizosphere microbial community.
  • To elucidate the ecological mechanisms underlying plant-microbiome responses to phyllosphere diseases.

Main Methods:

  • Analysis of rhizosphere microbial community structure and diversity.
  • Examination of microbial co-occurrence networks in response to BLB infection.

Main Results:

  • Rhizosphere bacteria demonstrated higher sensitivity to BLB than fungi.
  • BLB infection led to decreased bacterial diversity and increased complexity of microbial co-occurrence networks.
  • Significant increases in the relative abundance of genera such as Streptomyces, Chitinophaga, Sphingomonas, and Bacillus were observed.

Conclusions:

  • Rhizosphere microbes exhibit distinct responses to phyllosphere diseases, with implications for plant health.
  • Findings support the potential use of specific plant microbes to enhance plant resilience and promote sustainable agriculture.