Fungal communities in soils under global change

Studies in Mycology, Journal Year: 2022, Volume and Issue: 103(1), P. 1 - 24

Published: Sept. 22, 2022

Language: Английский

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Microbial Responses to the Reduction of Chemical Fertilizers in the Rhizosphere Soil of Flue-Cured Tobacco

Frontiers in Bioengineering and Biotechnology, Journal Year: 2022, Volume and Issue: 9

Published: Jan. 11, 2022

The overuse of chemical fertilizers has resulted in the degradation physicochemical properties and negative changes microbial profiles agricultural soil. These have disequilibrated balance ecology, which overloaded land with low fertility planting obstacles. To protect soil from effects unsustainable fertilization strategies, experiments reduction nitrogen at 10, 20, 30% were implemented. In this study, bacterial responses to fertilizer investigated. communities fertilizer-reducing treatments (D10F, D20F, D30F) different those control group (CK). alpha diversity was significantly increased D20F compared that CK. analysis beta revealed variation between CK, when clusters D10F, D30F separated. Chemical played dominant roles changing community D20F. Meanwhile, pH, organic matter, six enzymes (soil sucrase, catalase, polyphenol oxidase, urease, acid phosphatase, nitrite reductase) responsible for treatments. Moreover, four top 20 genera (unidentified JG30-KF-AS9, JG30-KF-CM45, Streptomyces , Elsterales ) considered as key bacteria, contributed findings provide a theoretical basis strategy sustainable agriculture, potentially contribute utilization resources through screening plant beneficial bacteria native low-fertility

Language: Английский

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Alleviating Soil Acidification Could Increase Disease Suppression of Bacterial Wilt by Recruiting Potentially Beneficial Rhizobacteria

Microbiology Spectrum, Journal Year: 2022, Volume and Issue: 10(2)

Published: March 7, 2022

Bacterial wilt is accompanied by microbial communities shift and soil acidification. However, the relationship between changes of bacterial under influence different acidification levels has not been fully elucidated. Here, we analyzed abundance Ralstonia solanacearum, rhizosphere carbon metabolism at differently acidic (pH 6.45, pH 5.60, 5.35, 4.90 4.45) amendment treatment (CaO). The results indicated that both R. solanacearum incidence showed a significant trend first increasing then decreasing with increase pH. Firmicutes phylum potentially beneficial genera

Language: Английский

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Long-term nitrogen fertilization-induced enhancements of acid hydrolyzable nitrogen are mainly regulated by the most vital microbial taxa of keystone species and enzyme activities

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 874, P. 162463 - 162463

Published: Feb. 25, 2023

Language: Английский

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Continuous planting of Chinese fir monocultures significantly influences dissolved organic matter content and microbial assembly processes

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 926, P. 171943 - 171943

Published: March 26, 2024

Language: Английский

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Effect of Mild Organic Substitution on Soil Quality and Microbial Community

Agronomy, Journal Year: 2024, Volume and Issue: 14(5), P. 888 - 888

Published: April 24, 2024

Mild organic substitution is advantageous for sustainable agricultural development. In order to determine the proper fertilization strategy, it essential investigate impact of substituting chemical fertilizers with varying levels manure on soil nutrients, microbial communities, and crop productivity. Four treatments were implemented: no fertilizer, sole 20% substitution, 40% substitution. Bacterial fungal communities characterized through high-throughput sequencing 16S rRNA gene V3–V4 region V4 region, respectively. The substitutions increased matter (SOM) content, total nitrogen (TN) reduced pH compared control (CK). showed most significant improvements in alkaline phosphatase, urease, invertase activities. Soil nutrient enhancement bacterial alpha diversity, a milder diversity bacteria. Different elevated relative abundance Bacteroidetes (8.11%, 21.25%, 1.88%), Actinomycetes (12.65%, 26.36%, 15.33%), Ascomycota (16.19%, 10.44%, 12.69%), known degrading recalcitrant matter. fertilizer treatment pathogenic Cheatotryiales. Shared species, primarily from Actinomycetes, Firmicutes, Proteobacteria, phyla, found at levels. Specifically, level promoted beneficial plant growth-promoting taxa, Oxalobacteraceae Massilia, suppressed pathogens, an increase Purpureocillium genus Mortierellomycota. These findings suggest that OF can maintain yield, enhance nutrients enzyme activities by fostering bacteria, inhibiting soil-borne refining community structure.

Language: Английский

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Differential Responses of Bacterial and Fungal Community Structure in Soil to Nitrogen Deposition in Two Planted Forests in Southwest China in Relation to pH

Forests, Journal Year: 2024, Volume and Issue: 15(7), P. 1112 - 1112

Published: June 27, 2024

Increased nitrogen deposition profoundly impacts ecosystem nutrient cycling and poses a significant ecological challenge. Soil microorganisms are vital for carbon in ecosystems; however, the response of soil microbial communities subtropical planted coniferous forests to remains poorly understood. This study carried out four-year addition experiment montane central Yunnan explore community dynamics primary regulatory factors two (P. yunnanensis Franch. P. armandii Franch.) under prolonged addition. We observed that elicited different responses bacterial fungal between forest types. In plantations, supplementation notably reduced α-diversity but increased diversity. contrast, showed opposite trends, indicating stand-specific differences. Nitrogen also led changes dynamics, increasing pH decreasing it forests. These nutrients significantly affected diversity, structure, network interactions communities, with distinct noted stands. Specifically, influenced β-diversity more than communities. It complexity interspecies while enhancing Conversely, low levels improved stability networks both Using random structural equation modeling, pH, NH4+-N, total (TN) were identified as key regulating after The varied conditions diversity deposition, treatments primarily shaping through availability. provides essential insights into scientific sustainable management plantation ecosystems.

Language: Английский

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Influence of Different Vegetation Types on Soil Physicochemical Parameters and Fungal Communities

Microorganisms, Journal Year: 2022, Volume and Issue: 10(4), P. 829 - 829

Published: April 16, 2022

This study assessed the effects of Betula dahurica (BD), platyphylla (BP), Larix gmelinii (LG), Quercus mongolica (QM), and a mixed conifer-broadleaf forest composed LG QM (LGQM) on soil physicochemical parameters community structure fungi in Zhongyangzhan Black-billed Capercaillie Nature Reserve. Fungal structures were characterized via ITS rRNA sequencing. The by Pearson correlation analysis redundancy (RDA). LGQM exhibited lower C/N, available nitrogen (AN), total phosphorus (TP), (AP) compared with broadleaf forest. fungal Shannon Simpson diversity indices highest BP, whereas ACE index. Basidiomycota, Ascomycota, Mortierellomycota, Mucoromycota phyla dominant across all vegetation types. Each different types studied herein unique structure. RDA results indicated that primarily shaped N, P soil. Our findings thus forests restored species trees may exhibit variations quality characteristics despite sharing same climate. Furthermore, broadleaved coniferous composition.

Language: Английский

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Plants, soil properties and microbes directly and positively drive ecosystem multifunctionality in a plantation chronosequence

Land Degradation and Development, Journal Year: 2022, Volume and Issue: 33(16), P. 3049 - 3057

Published: May 31, 2022

Abstract Chinese fir ( Cunninghamia lanceolata ) is the main plantation species in subtropical region of China. However, shift ecosystem multifunctionality with stand development remains largely unexplored for these plantations. This study used a chronosequence to investigate variations by employing individual functions and identified its driving factors The findings provide strong evidence that carbon stocks, water regulation wood production increased ages, but tradeoff did not significantly increase multifunctionality. Soil microbial parameters (the abundances bacteria, fungi actinomycete), soil properties (soil moisture, total nitrogen), plant shrub layer cover understory cover) exhibited positive correlations structural equation model revealed plants, microbes pathways explained 83% variance Results showed directly affected path coefficients 0.404, 0.487 0.334, respectively. were as top direct predictor multifunctionality, while had effects on These results verified microbes, plants positively regulated Our demonstrate should be considered comprehensive ecological indicator services functions, sustainable management. highlights importance conserving maintaining

Language: Английский

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Root traits and soil nutrient and carbon availability drive soil microbial diversity and composition in a northern temperate forest

Plant and Soil, Journal Year: 2022, Volume and Issue: 479(1-2), P. 281 - 299

Published: June 3, 2022

Language: Английский

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