What question did this study set out to answer?

To investigate the association between belowground fungal communities across different soil-plant compartments and the development of grapevine trunk disease symptoms.

April 3, 2023Environmental MicrobiomeOpen Access

Belowground microbiota analysis indicates that Fusarium spp. exacerbate grapevine trunk disease

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To investigate the association between belowground fungal communities across different soil-plant compartments and the development of grapevine trunk disease symptoms.
Characterized fungal communities across three soil-plant compartments (bulk soils, rhizospheres, and roots) using ITS high-throughput amplicon sequencing over two consecutive years.
Conducted comparative community analyses using PERMANOVA and performed pathogen inoculation tests using Fusarium isolates and Dactylonectria macrodidyma on grapevines.
Fungal diversity and composition varied significantly by compartment (PERMANOVA, p < 0.001, 12.04% of variation), sampling year (p < 0.001, 8.83%), and disease symptomatology (p < 0.001, 1.29%), especially in roots and rhizospheres.
Traditional grapevine trunk disease pathogens did not positively correlate with symptoms, whereas Fusarium spp. were significantly enriched in symptomatic roots and rhizospheres.
Co-inoculation with Fusarium isolates and D. macrodidyma caused necrotic stem spots, blackened lateral roots, and yielded higher disease indices than single inoculations alone.

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Implication

Microbiome profiling reveals Fusarium spp. enrichment in roots and rhizospheres of grapevines, indicating aggravated grapevine trunk disease severity.

Cite This Study

Li et al. (2023) studied this question.

synapsesocial.com/papers/6a71255f2163a0a01bc5504c https://doi.org/10.1186/s40793-023-00490-0

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Implication

Microbiome profiling reveals Fusarium spp. enrichment in roots and rhizospheres of grapevines, indicating aggravated grapevine trunk disease severity.

Belowground microbiota analysis indicates that Fusarium spp. exacerbate grapevine trunk disease

Key Points

Discussion

Implication

Cite This Study

Belowground microbiota analysis indicates that Fusarium spp. exacerbate grapevine trunk disease

Key Points

Discussion

Implication

Cite This Study

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