Journal
SCIENTIFIC REPORTS
Volume 11, Issue 1, Pages -Publisher
NATURE RESEARCH
DOI: 10.1038/s41598-021-88495-y
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- ministry of science, technology, and research of Iran
- INRA
- ABRII
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The study revealed that the rhizosphere bacterial communities of pepper plants were significantly modulated by the presence of Phytophthora capsici, with distinct changes in alpha and beta-diversity. Among the two compared Streptomyces strains, the phosphate solubilizing strain IT20 showed a stronger microbial community response. Positive interactions were identified between different bacterial genera, highlighting the potential for designing synthetic bio-inoculants for eco-friendly agronomic solutions.
The responses of rhizosphere bacterial communities of Streptomyces (SS14 and IT20 stains) treated-pepper plants following inoculation by Phytophthora capsici (PC) was investigated using Illumina MiSeq sequencing. Distinct modulation of the bacteriome composition was found for PC samples with the highest relative abundance (RA) of Chitinophaga (22 +/- 0.03%). The RA of several bacterial operational taxonomic units (OTUs) was affected and caused changes in alpha and beta-diversity measures. In IT20, the RA of Cyanobacteria was enriched compared to SS14 (72%) and control samples (47%). Phylotypes belonging to Devosia, Promicromonospora, Kribbella, Microbacterium, Amylocolatopsis, and Pseudomonas genera in the rhizosphere were positively responding against the pathogen. Our findings show that the phosphate solubilizing strain IT20 has higher microbial community responders than the melanin-producing strain SS14. Also, positive interactions were identified by comparing bacterial community profiles between treatments that might allow designing synthetic bio-inoculants to solve agronomic problems in an eco-friendly way.
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