Streptomyces‐triggered coordination between rhizosphere microbiomes and plant transcriptome enables watermelon Fusarium wilt resistance

The use of microbial inoculant is a promising strategy to improve plant health, but their efficiency often faces challenges due to difficulties in successful microbial colonization in soil environments. To this end, the application of biostimulation products derived from microbes is expected to reso...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Microbial biotechnology 2024-03, Vol.17 (3), p.e14435-n/a
Hauptverfasser: Ge, An‐Hui, Li, Qi‐Yun, Liu, Hong‐Wei, Zhang, Zheng‐Kun, Lu, Yang, Liang, Zhi‐Huai, Singh, Brajesh K., Han, Li‐Li, Xiang, Ji‐Fang, Xiao, Ji‐Ling, Liu, Si‐Yi, Zhang, Li‐Mei
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The use of microbial inoculant is a promising strategy to improve plant health, but their efficiency often faces challenges due to difficulties in successful microbial colonization in soil environments. To this end, the application of biostimulation products derived from microbes is expected to resolve these barriers via direct interactions with plants or soil pathogens. However, their effectiveness and mechanisms for promoting plant growth and disease resistance remain elusive. In this study, we showed that root irrigation with the extracts of Streptomyces ahygroscopicus strain 769 (S769) solid fermentation products significantly reduced watermelon Fusarium wilt disease incidence by 30% and increased the plant biomass by 150% at a fruiting stage in a continuous cropping field. S769 treatment led to substantial changes in both bacterial and fungal community compositions, and induced a highly interconnected microbial association network in the rhizosphere. The root transcriptome analysis further suggested that S769 treatment significantly improved the expression of the MAPK signalling pathway, plant hormone signal transduction and plant–pathogen interactions, particular those genes related to PR‐1 and ethylene, as well as genes associated with auxin production and reception. Together, our study provides mechanistic and empirical evidences for the biostimulation products benefiting plant health through coordinating plant and rhizosphere microbiome interaction. The application of biostimulation products derived from microbes is a promising strategy for mitigating soil‐borne disease without the necessity of root colonization. Here, the author demonstrated that the extracts of Streptomyces ahygroscopicus strain 769 solid fermentation products were effective in reducing watermelon Fusarium wilt incidence. This was achieved through directly priming plant immune responses and indirectly cultivating a highly interconnected and mutually beneficial rhizosphere microbial community.
ISSN:1751-7915
1751-7915
DOI:10.1111/1751-7915.14435