Synergistic effect of grassland plants and beneficial rhizosphere bacteria helps plants cope with overgrazing stress DOI Creative Commons
Ting Yuan,

Weibo Ren,

Jiatao Zhang

et al.

BMC Plant Biology, Journal Year: 2025, Volume and Issue: 25(1)

Published: May 10, 2025

Abstract Background Overgrazing (OG) is an important driver of grassland degradation and productivity decline. Highly effective synergy between plants rhizosphere growth-promoting rhizobacteria (PGPR) may be a major way for to effectively cope with OG stress. There have been few reports providing solid evidence on how this occurs. Result This study combined multi-omics analysis the interaction effect specific root exudate PGPR B68, aiming reveal synergistic regulatory mechanism L. chinensis under overgrazing The results showed that Leymus history can recruit beneficial Phyllobacterium sp. B68 by regulating compounds(such as amino acid L-leucyl-L-alanine alkaloid cordycepin). These compounds enhanced colonization promoting chemotaxis biofilm formation. pot experiments indicated bacterial isolates used bio inoculants increased growth (mainly including plant height biomass) significantly increasing chlorophyll content, RuBisCO activity, soluble sugar, hormones nutrient content. Metagenomics show inoculation altered soil community composition function. Additionally, systemically upregulated expression level genes involved in hormone signaling, sugar transporters, nitrogen metabolism, cell division, wall modification photosynthesis promote growth. above indicate recruited exudates helps adapt stress uptake transport, maintaining homeostasis, enhancing related metabolism. Conclusion provides new insights into positive interactions bacteria stress, offering valuable knowledge developing fertilizers better management practices degraded rangeland restoration sustainable agriculture development. Clinical trial number Not applicable.

Language: Английский

Synergistic effect of grassland plants and beneficial rhizosphere bacteria helps plants cope with overgrazing stress DOI Creative Commons
Ting Yuan,

Weibo Ren,

Jiatao Zhang

et al.

BMC Plant Biology, Journal Year: 2025, Volume and Issue: 25(1)

Published: May 10, 2025

Abstract Background Overgrazing (OG) is an important driver of grassland degradation and productivity decline. Highly effective synergy between plants rhizosphere growth-promoting rhizobacteria (PGPR) may be a major way for to effectively cope with OG stress. There have been few reports providing solid evidence on how this occurs. Result This study combined multi-omics analysis the interaction effect specific root exudate PGPR B68, aiming reveal synergistic regulatory mechanism L. chinensis under overgrazing The results showed that Leymus history can recruit beneficial Phyllobacterium sp. B68 by regulating compounds(such as amino acid L-leucyl-L-alanine alkaloid cordycepin). These compounds enhanced colonization promoting chemotaxis biofilm formation. pot experiments indicated bacterial isolates used bio inoculants increased growth (mainly including plant height biomass) significantly increasing chlorophyll content, RuBisCO activity, soluble sugar, hormones nutrient content. Metagenomics show inoculation altered soil community composition function. Additionally, systemically upregulated expression level genes involved in hormone signaling, sugar transporters, nitrogen metabolism, cell division, wall modification photosynthesis promote growth. above indicate recruited exudates helps adapt stress uptake transport, maintaining homeostasis, enhancing related metabolism. Conclusion provides new insights into positive interactions bacteria stress, offering valuable knowledge developing fertilizers better management practices degraded rangeland restoration sustainable agriculture development. Clinical trial number Not applicable.

Language: Английский

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