Changes in soil microbial community following the conversion of wasteland to cotton land in saline-sodic region of Northwest China

Zong, Rui; Tan, Mingdong; Han, Yunsheng; Zou, Ruihan; Wang, Zhenhua

doi:10.1016/j.apsoil.2022.104424

Cited by 14 publications

(6 citation statements)

References 56 publications

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“…Mortierellomycota is an oil‐producing filamentous fungus whose hyphae affect nutrient uptake by other microbial groups during organic degradation. In contrast, well‐developed mycelia can modify soil microhabitats by affecting soil aggregates (Rui et al, 2022). Shrubland and forestland plant root systems were generally more developed; therefore, Mortierellomycota abundance in the soil significantly increased (Figure 5).…”

Section: Discussionmentioning

confidence: 99%

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Surface soil microbiome changes in Grain for Green Project accelerates organic carbon mineralization on the Loess Plateau in China

Zhang,

Liu,

et al. 2024

Earth Surf Processes Landf

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Increasing amounts of greenhouse gases, such as CO2, released into the atmosphere have a profound impact on global climate change. Understanding how soil organic carbon (SOC) mineralization changes as a result of land‐use change can shed light on the mechanisms by which SOC mineralization occurs, thus illuminating pathways to achieve global C neutrality targets. Accordingly, the Grain for Green Project (GGP) on the Loess Plateau was used as the starting point to observe how microorganisms affect SOC mineralization through field sampling and laboratory incubation experiments. We found a significant increase in SOC mineralization rates resulting from the GGP, though only at the soil surface (0.47–6.40 mg·kg−1 soil·day−1). We also found that soil microorganisms had a significant effect on different types of C sources, and Proteobacteria and Ascomycota/Mortierellomycota were the dominant bacterial and fungal groups at the GGP sites. The factors limiting SOC mineralization varied with farmland conversion to other land‐use types, and the direct and interactive contributions of these factors were quantified. The explanatory power examined in terms of land‐use ability to directly predict SOC mineralization rates was as follows: farmland (0.82), grassland (0.76), shrubland (0.41), and forestland (0.29). Along the increasing vegetative complexity gradient from farmland to forestland, the individual variable explanatory values decreased, while the relative importance of the interactive effects between variables increased. Our research demonstrates that the GGP increased soil biological activity and improved microbial community ability to metabolize C sources, thereby accelerating SOC mineralization. This will provide a scientific basis for decisions to enhance global semidrought recovery.

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Section: Discussionmentioning

confidence: 99%

“…Mortierellomycota is an oil-producing filamentous fungus whose hyphae affect nutrient uptake by other microbial groups during organic degradation. In contrast, well-developed mycelia can modify soil microhabitats by affecting soil aggregates (Rui et al, 2022).…”

Section: Soc Mineralization Response To the Ggpmentioning

confidence: 99%

Surface soil microbiome changes in Grain for Green Project accelerates organic carbon mineralization on the Loess Plateau in China

Zhang,

Liu,

et al. 2024

Earth Surf Processes Landf

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“…The cycle was maintained for 25 times, so that a large amount of amplified DNA fragments accumulated. Final extension was at 72°C for 5 min to make the primer extension complete ( Zong et al, 2022 ). Vazyme V AHTSTM DNA Clean Beads (Vazyme, Nanjing, China) and the Quant-iT PicoGreen dsDNA Assay Kit (Invitrogen, Carlsbad, CA, United States) were used to purify and quantify PCR amplicons.…”

Section: Methodsmentioning

confidence: 99%

“…Vazyme V AHTSTM DNA Clean Beads (Vazyme, Nanjing, China) and the Quant-iT PicoGreen dsDNA Assay Kit (Invitrogen, Carlsbad, CA, United States) were used to purify and quantify PCR amplicons. When individual quantification step finished, amplicons were pooled in equal amounts, and pair-end 2 × 250 bp sequencing was performed using the Illumina MiSeq platform with MiSeq Reagent Kit v3 at Shanghai Personal Biotechnology Co., Ltd. (Shanghai, China; Zong et al, 2022 ).…”

Section: Methodsmentioning

confidence: 99%

Mixed conifer-broadleaf trees on arbuscular mycorrhizal and ectomycorrhizal communities in rhizosphere soil of different plantation stands in the temperate zone, Northeast China

Zhang

Wang²,

Xu³

et al. 2022

Front. Microbiol.

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In comparison with ectomycorrhizal (EM) tree species, arbuscular mycorrhizal (AM) trees have different litter quality and nitrogen cycle modes, which may affect mycorrhizal colonization and the community composition and diversity. However, available studies addressing the mycorrhizal fungal colonization rate, diversity and community composition in mixed forest stands composed of AM and EM trees are rare. In the present study, we assessed litter quality, soil physicochemical properties and correlated them with mycorrhizal community characteristics in rhizosphere soils of monoculture and mixture plantation stands of AM tree species (Fraxinus mandschurica Rupr.) and EM tree species (Larix gmelinii Rupr., Picea koraiensis Nakai) in Northeast China. We hypothesized that (1) the effect of mixture pattern on mycorrhizal colonization rate and diversity would change with tree species, (2) the effect of mixture pattern on mycorrhizal community composition would be less pronounced in comparison with that of tree species. We found that mixture did not change AMF colonization rate regardless of mixture identity, whereas mixture and tree species exerted significant effects on EMF colonization rate. For AMF community, both M-AS (Fraxinus mandschurica Rupr. and Picea koraiensis Nakai) and M-AL (Fraxinus mandschurica Rupr. and Larix gmelinii Rupr.) mixtures significantly increased Pielou index and Simpson index, whereas only M-AS significantly increased Sobs. For EMF community, mixture significantly affected examined diversity indices except for Chao1. Mixture significantly shifted AMF and EMF community, and the magnitude was tree species dependent. The dominant genera in AMF and EMF communities in plantation stands were Glomus and Tomentella, respectively. The EnvFit analysis showed that the determinant factors of EMF community are soil moisture, pH, nitrate nitrogen content, dissolved organic nitrogen content, soil organic matter content, soil organic carbon/total nitrogen and litter carbon/total nitrogen. In conclusion, mixed conifer-broadleaf trees significantly changed soil physicochemical properties, litter quality as well as mycorrhizal fungi community diversity and composition.

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“…Soil salinization is a widespread issue worldwide, influencing the physical and chemical properties of soil [47]. This, in turn, leads to decreasing soil biodiversity, water quality, and agricultural productivity [30,49]. Salinity stress affects plant growth through osmotic stress and ion toxicity, thereby disturbing soil biodiversity [46].…”

Section: Introductionmentioning

confidence: 99%

Actinobacterial and fungal strain-enriched wheat straw as an effective strategy for alleviating the effect of salinity stress on soil chemical and biochemical properties

Sadeghi

Nasrabadi

Movahedi

et al. 2022

Chem. Biol. Technol. Agric.

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Background Soil salinization influences the physical and chemical properties of soil and disturbs soil biodiversity. Application of wheat straw in saline soils with enhance soil fertility could mitigate the effects of salinity on soil microbial properties under laboratory conditions. However, knowledge is inadequate regarding the effects of adding enriching plant residues with beneficial organisms on soil quality in saline soil. To enhance this knowledge, an incubation experiment was performed to evaluate the effect of wheat straw (0 and 1%, w/w) enriched with microbial strains (control, Streptomyces chartreusis, Pleurotus ostreatus and a mixture of P. ostreatus and S. chartreusis.) on some soil chemical and biochemical properties under salinity stress (0, 8 and 15 dS m−1). Results Salinity stress led to reducing soil available phosphorus (13–23%), available potassium (5–7%), total nitrogen (3–18%). Wheat straw inoculated with S. chartreusis and P. ostreatus improved microbial respiration rate (108–305%), soil microbial biomass carbon (80–110%), microbial biomass phosphorus (50–115%), catalase activity (20–140%), urease activity (25–45%), soil organic carbon (70–100%) and dissolved organic carbon (15–20%) under all salinity levels. The effect of S. chartreusis enriched wheat straw on enzymatic and microbial properties was higher than that of wheat straw inoculated with P. ostreatus under salinity stress conditions. Conclusions The results of this study demonstrated that the enrichment of wheat straw with S. chartreusis and P. ostreatus act synergistically and improve soil fertility and microbial properties. It can be concluded that the combined application of wheat straw and actinobacterial and fungal strain can be an effective strategy to ameliorate soil salinity stress in agriculture. Graphical Abstract

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Changes in soil microbial community following the conversion of wasteland to cotton land in saline-sodic region of Northwest China

Cited by 14 publications

References 56 publications

Surface soil microbiome changes in Grain for Green Project accelerates organic carbon mineralization on the Loess Plateau in China

Surface soil microbiome changes in Grain for Green Project accelerates organic carbon mineralization on the Loess Plateau in China

Mixed conifer-broadleaf trees on arbuscular mycorrhizal and ectomycorrhizal communities in rhizosphere soil of different plantation stands in the temperate zone, Northeast China

Actinobacterial and fungal strain-enriched wheat straw as an effective strategy for alleviating the effect of salinity stress on soil chemical and biochemical properties

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