Soil ecosystem multifunctionality is strongly linked with crop yield after four decades chemical fertilization in black soil

Agriculture Ecosystems & Environment, Journal Year: 2024, Volume and Issue: 368, P. 109007 - 109007

Published: April 2, 2024

Language: Английский

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Contrasting stocks and origins of particulate and mineral-associated soil organic carbon in a mangrove-salt marsh ecotone

Geoderma, Journal Year: 2024, Volume and Issue: 446, P. 116904 - 116904

Published: May 7, 2024

The global warming-driven poleward expansion of mangrove habitats (e.g., Avicennia germinans and Rhizophora mangle) into temperate salt marshes Spartina alterniflora Juncus roemerianus) has been shown to alter coastal soil organic carbon (SOC) storage. However, the taxa-specific consequences this vegetation shift on origin size SOC sub-fractions (particulate OC (POC); mineral-associated (MAOC); reactive iron-associated (FeR-MAOC)) remain largely unexplored. In study, we used a particle size-based fractionation method compare quantity δ13C composition bulk each in cores collected from Apalachicola Bay barrier islands Florida, USA, highest latitude where monospecific communities all four aforementioned plants co-occur. Depth-dependent variation clearly showed replacement S. by mangroves, as well reciprocal substitutions J. roemerianus, probably driven changes wetland elevation. Higher burial rates suggested that soils were principally developed deposition. contrast, comparatively lower but higher stocks marsh illustrated subsurface input roots. POC was primarily derived contemporary plant detritus; its concentration (58.8 ± 9.0 % SOC) relative mangroves (38.4 6.0 SOC). MAOC content did not vary across (53.5 10.9 SOC), originated microbially-transformed pre-existing plants. FeR-MAOC essentially absent R. mangle (2.9 3.6 while representing minor fraction three other (7.8 7.0 more like present-day surface plants, highlighting situ formation their active oxidizing rhizospheres.

Language: Английский

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Spartina alterniflora modifies the native arbuscular mycorrhizal fungal community in coastal ecosystem

Frontiers in Microbiology, Journal Year: 2025, Volume and Issue: 16

Published: March 6, 2025

The effect of invasive plants is mediated by their interactions with microbial communities. However, it still uncertain how Spartina alterniflora impacts the arbuscular mycorrhizal fungi (AMF) community within native rhizosphere what resulting AMF differences are associated with. Here, we investigated kind communities formed in roots S. to distinguish from such as Suaeda salsa, Phragmites australis, and Tamarix chinensis analyzing associations selected environmental factors. dynamics AM fungal linked plant-soil systems. vegetation demonstrated notable composition, diversity, symbiotic networks. Significantly higher ω, Ec, AN, AP, AK were observed alterniflora-invaded soils. Although plant responded soil factors, AN AP highly explanatory factors driving characteristics during expansion, while increased P N availability may be involved shaping alterniflora. Our findings can provide complementary evidence-based solutions for defending against mitigating impacts, well protecting coastal ecosystems.

Language: Английский

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Temporal dynamics of soil microbial symbioses in the root zone of wolfberry: deciphering the effects of biotic and abiotic factors on bacterial and fungal ecological networks

Frontiers in Plant Science, Journal Year: 2025, Volume and Issue: 16

Published: March 10, 2025

Long-term monoculture of Lycium barbarum significantly affects its productivity and soil health. Soil microbiota, which mediate the sustainable development ecosystems, are influenced by age wolfberry plants. However, comprehensive effects long-term cultivation L. on microbial community not yet fully understood. Here, we assessed stand diversity, composition, assembly, symbiotic networks bacterial fungal communities in root zone using high-throughput sequencing technology. The results showed that affected α-diversity communities, as evidenced tendency their Shannon Chao1 indices to increase then decrease. At same time, structure was tree age. Proteobacteria (28.77%–32.81%) always most dominant phylum, Ascomycetes (49.72%–55.82%) phylum. A number genus-level biomarkers were also identified soils associated with roots trees varying ages. Additionally, stochastic processes dominated assembly whereas balance between deterministic fluctuated complexity stability notably age, particularly from 10- 15-year-old trees. partial least squares path modeling (PLS-PM) analysis emphasized can indirectly regulate diversity network both influencing physicochemical properties. Furthermore, community, but exhibited direct strong regulation complexity. study offers valuable data for improving quality fruit yield under continuous cropping, has implications industry.

Language: Английский

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Structure, acquisition, assembly, and function of the root-associated microbiomes in Japonica rice and hybrid rice

Agriculture Ecosystems & Environment, Journal Year: 2024, Volume and Issue: 373, P. 109122 - 109122

Published: June 12, 2024

Language: Английский

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The influence of soil salinization, induced by the backwater effect of the Yellow River, on microbial community dynamics and ecosystem functioning in arid regions

Environmental Research, Journal Year: 2024, Volume and Issue: 262, P. 119854 - 119854

Published: Aug. 27, 2024

Language: Английский

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Temporal patterns of endophytic microbial heterogeneity across distinct ecological compartments within the Panax ginseng root system following deforestation for cultivation

Frontiers in Microbiology, Journal Year: 2024, Volume and Issue: 15

Published: May 2, 2024

Alterations in the microbial community significantly impact yield and quality of ginseng. Yet, dynamics shifts within root endophytes ginseng across varying cultivation periods remain inadequately understood. This study zeroes on variations xylem (M), phloem (R), fibrous roots (X) during fourth (F4) fifth (F5) years cultivation, aiming to bridge this research gap. We assessed soil physicochemical properties, enzyme activities, nine individual saponins, complemented by high-throughput sequencing techniques (16S rDNA ITS) determine their profiles. The results showed that mainly affected diversity endophytic bacteria compartment: ASVs number α-diversity Chao1 index fungi F5X compartment with higher were than those F4X lower years. It is speculated changes bacterial groups may be related regulation amino acid metabolic pathway. Such as D-glutamine D-glutamate metabolism D-glutamine, cysteine methionine regulation. dominant are Proteobacteria (relative abundance 52.07-80.35%), Cyanobacteria (1.97-42.52%) Bacteroidota (1.11-5.08%). Firmicutes (1.28-3.76%). There two phyla: Ascomycota (60.10-93.71%) Basidiomycota (2.25-30.57%). Endophytic more closely properties activities. AN, TK, OP, SWC EC main driving factors flora root.

Language: Английский

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Temporal heterogeneity of the root microbiome in Panax ginseng soils across ecological compartments under mild soil disturbance

Frontiers in Microbiology, Journal Year: 2024, Volume and Issue: 15

Published: June 11, 2024

Introduction Knowledge on spatiotemporal heterogeneity of plant root microbiomes is lacking. The diversity the microbiome must be revealed for understanding plant–microbe interactions and regulation functionally crucial microbial taxa. Methods We here investigated dynamics group characteristics within each soil ecological compartment [rhizoplane (B), rhizosphere (J), bulk (T)] across different cultivation years (year 4: F4 year 5: F5) by using high-throughput sequencing (16S ITS). Results According to species diversity, ASV (amplified sequence variant) number in rhizoplane ecotone increased significantly with an increase planting years. By contrast, remained relatively stable. PCoA PERMANOVA analyses that taxa among compartments varied significantly. Planting exerted least effect microbiome, but their impact fungi bacteria was most significant. Discussion influenced community composition various ginseng soil. Potentially harmful such as Cryptococcus (2.83%), Neonectria (0.89%), llyonectria (0.56%), Gibberella (0.41%), Piloderma (4.44%), Plectosphaerella (3.88%) were enriched F5B years, whereas abundance potentially beneficial Mortierella increased. Correlation analysis indicated associations between bacterial pH/S-CAT, fungal moisture content/total potassium. Our study highlights significance changes stability comprehending sustainability.

Language: Английский

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Effects of fertilization on the composition of bacterial populations in the rhizosphere soil of Legume-Gramineae mixtures in the Hexi Corridor region

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: April 24, 2024

Background and aims Fertilization is a critical management practice for improving soil fertility increasing agricultural production. We still don't fully understand how biotic abiotic variables interact with multifunctionality in the rhizosphere of legume-Gramineae mixtures following fertilization. Studies on effects fertilization bacterial composition particular geographical areas are scarce. Methods To tackle this matter, we set up five treatments: no fertilizer zone (CK, N0P0K0), nitrogen-phosphorus-potassium (NPK, N2P2K2), nitrogen-less (PK, N0P2K2), phosphorus-less (NK, N2P0K2), potassium-less (NP, N2P2K0). The data were measured to assess response mechanism management. Results treatment resulted beneficial impact nutrients, enzyme activity, biological characteristics, reaching maximum under N2P2K2 treatment. analysis community revealed that oligotrophic taxa decreased primarily due addition, including Acidobacteria, enhancing copiotrophic taxa, such as Bacteroidetes Proteobacteria, soil. Furthermore, according FAPROTAX analysis, results indicated variations function legumes gramineae. indirectly affected versatility by changing diversity communities. Conclusions can be reshaped properties modified different treatments, thus impacting potential community. This study has offer scientific guidance rational mixtures.

Language: Английский

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