Impact of Karst Rocky Desertification on N-Fixing Tree Species Root System and Bacteria

Forests, Год журнала: 2025, Номер 16(3), С. 425 - 425

Опубликована: Фев. 26, 2025

The study aimed to investigate the effect of soil textural or mineral fraction substrates (loam and gravel) from karst desertification areas on rhizospheric root-associated bacterial community structure Dalbergia odorifera (an N-fixing tree), using high-throughput sequencing techniques, based treatment methods whole-root two-chambered split-root systems. Further, this determined relative importance plant substrate properties rhizospheric, non-rhizospheric endospheric bacteria composition. type exerts a significant influence both communities, whereas endophytic communities within root system are predominantly by species rather than type. analysis revealed that diversity was considerably lower communities. Cluster indicated samples formed distinct cluster, while in grouped into one branch, those gravel another branch. In comparison treatments, reduced abundance observed rhizosphere non-rhizosphere nitrogen-fixing plants soil, potentially due interplay nutrient availability increased porosity treatments. Proteobacteria, which involved nitrogen cycle, exhibited highest abundance. contrast, Acidobacteria, Firmicutes other phyla cycling demonstrated higher abundance, with their presence being more pronounced extreme environments, such as compared substrates. These results suggest can respond environments increasing findings provide theoretical basis for use D. ecosystem recovery vegetation restoration.

Язык: Английский

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Enhancing plant stress resilience and agricultural sustainability through rhizosphere microbiome optimization

Plant and Soil, Год журнала: 2025, Номер unknown

Опубликована: Март 19, 2025

Язык: Английский

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The Impact of Soybean Genotypes on Rhizosphere Microbial Dynamics and Nodulation Efficiency

International Journal of Molecular Sciences, Год журнала: 2025, Номер 26(7), С. 2878 - 2878

Опубликована: Март 21, 2025

Rhizosphere microbiome exerts a significant role in plant health, influencing nutrient availability, disease resistance, and overall growth. Establishing robust efficient nodulation process is essential for optimal nitrogen fixation legumes like soybeans. Different soybean genotypes exhibit variations their rhizosphere microbiome, potentially impacting through nodulation. However, detailed understanding of how specific influence microbial communities patterns remains limited. Our study aims to investigate the relationship between abundance growth four genotypes. We evaluated parameters, including biomass, leaf area, stomatal conductance, identified genotypic differences Specifically, PI 458505 603490 exhibited high levels nodulation, while 605839A 548400 displayed low 16S rRNA gene amplicon sequencing revealed diverse bacterial rhizosphere, with Proteobacteria as dominant phylum. High-nodulation harbored more enriched Actinobacteria Acidobacteriota, low-nodulation showed higher abundances Firmicutes Planctomycetota. Alpha beta diversity analyses confirmed distinct community structures high- groups. findings suggest that significantly influences highlighting potential genotype-driven strategies enhance plant-microbe interactions improve productivity.

Язык: Английский

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Fusarium cross-infection in medicinal herbs alters rhizosphere microbiomes and disrupts mycorrhizal functions under soil physicochemical imbalances

Опубликована: Апрель 3, 2025

Background and Aims Fusarium root rot wilt affect medicinal herbs in Gansu Province, China, despite extended crop rotations. This study investigated the cross-pathogenicity of Fusariumspecies isolated from Angelica sinensis (Danggui), Codonopsis pilosula (Dangshen), Astragalus mongholicus (Huangqi). Methods Of 83 fungal isolates recovered, 69.8% were identified as Fusarium spp., through ITS, TEF1-α, RPB2 sequencing, clustering into Fusarium oxysporum (FOSC, 36.2%), solani (FSSC, 31%), tricinctum (FTSC, 22.4%) species complexes. Representative strains (F. DSH27, F. solaniHQ123, DG105) tested for greenhouse field trials. Rhizosphere microbial dynamics, including bacterial community diversity, functional guilds, soil physicochemical properties, analyzed. Results Fusariumstrains exhibited varying aggressiveness, highest on original hosts, while cross-infective hosts showed less to moderate severity. Infections disrupted rhizosphere networks, increasing pathotrophic dominance over arbuscular mycorrhizal functions. Sequencing reduced operational taxonomic units (OTUs), with distinct infected vs. non-infected rhizospheres. Pathogenic genera positively correlated disease incidence, beneficial Mortierella RB41 negative correlations. Infected soils significant changes total carbon, available phosphorus, manganese, zinc, correlating dynamics Conclusion links cross-infection network disruptions, loss fungi (AMF) functions under altered conditions herbs. These findings uncover systematic species, highlighting need AMF-based strategies integrated management mitigate its impact.

Язык: Английский

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Impact of various fertilization types and application rates on Salvia miltiorrhiza quality and the composition of its root microbial community

Industrial Crops and Products, Год журнала: 2025, Номер 230, С. 121071 - 121071

Опубликована: Апрель 26, 2025

Язык: Английский

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