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Co-occurrence analysis reveal that biotic and abiotic factors influence soil fungistasis against Fusarium graminearum

Legrand, Fabienne ; Chen, Wen ; Cobo-Díaz, José Francisco ; Picot, Adeline ; Floch, Gaétan Le

FEMS microbiology ecology, 2019-05, Vol.95 (5) [Revista revisada por pares]

England: Oxford University Press

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Co-occurrence analysis reveal that biotic and abiotic factors influence soil fungistasis against Fusarium graminearum
Autor: Legrand, Fabienne ; Chen, Wen ; Cobo-Díaz, José Francisco ; Picot, Adeline ; Floch, Gaétan Le
Materias: Abiotic factors ; Antibiosis ; Autoclaving ; Bacillus - physiology ; Biological control ; Blight ; Correlation analysis ; Ecology ; France ; Fungicides, Industrial - pharmacology ; Fungistasis ; Fusarium - drug effects ; Fusarium - genetics ; Fusarium - growth & development ; Fusarium - physiology ; Fusarium graminearum ; Fusarium head blight ; Inoculum ; Manganese ; Microbiology ; Microorganisms ; Network analysis ; Pathogens ; Plant Diseases - microbiology ; Plant Diseases - prevention & control ; Pseudomonas - physiology ; Soil - chemistry ; Soil fungistasis ; Soil Microbiology ; Soils ; Triticum - microbiology ; Wheat
Es parte de: FEMS microbiology ecology, 2019-05, Vol.95 (5)
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descripción: The current study determined the levels of soil fungistasis against a soil-borne pathogen inoculum, Fusarium graminearum (Fg, a major causal agent of Fusarium Head Blight (FHB)), in 31 wheat fields by quantifying Fg growth after a 15-day incubation period using qPCR in autoclaved versus non-autoclaved soils. The results were used to define the six most Fg-resistant and the six most Fg-conducive soils. By using a metabarcoding approach, the diversity of the bacterial communities was significantly higher in Fg-resistant soils than in Fg-conducive soils. Microbial taxa potentially contributing to Fg-fungistasis of soil were selected if they were significantly more prevalent and/or abundant in Fg-resistant soils than in Fg-conducive soils. Some of these candidate indicators, e.g. Pseudomonas spp. and Bacillus spp., have been reported previously as effective biocontrol agents against plant pathogens. Correlation-based network analysis further showed that the members of the bacterial communities in Fg-resistant soils were more connected than in Fg-conducive soils. Moreover, network modules was found significantly correlated with certain edaphic abiotics factors (such as the soil manganese and nitrogen content) and Fg-fungistasis. Such observations may suggest and emphasize, although conceptual, the importance of synergistic rather than individual effects of network members, and the nutrient use efficiency in contributing to Fg-resistance of soils in wheat fields in France.
Editor: England: Oxford University Press
Idioma: Inglés

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Co-occurrence analysis reveal that biotic and abiotic factors influence soil fungistasis against Fusarium graminearum

Legrand, Fabienne ; Chen, Wen ; Cobo-Díaz, José Francisco ; Picot, Adeline ; Floch, Gaétan Le

England: Oxford University Press

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