Biochar-amended composting of lincomycin fermentation dregs promoted microbial metabolism and reduced antibiotic resistance genes

Wang, Chenhao; Yan, Shen; Li, Yingchun; Zhang, Peng; Ren, Peng; Wang, Mengmeng; Kuang, Shaoping

doi:10.1016/j.biortech.2022.128253

Cited by 28 publications

(2 citation statements)

References 41 publications

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“…Reduction in Streptomycetaceae is possibly explained by increased competition for resources that is expected to occur as the other microbial families increase in abundance. Several other recent studies have reported a reduction in Streptomycetaceae bacteria abundance in response to biochar amendment (Yang et al, 2022;Wang et al, 2023).…”

Section: Expression Of Top Microbial Taxamentioning

confidence: 93%

Metatranscriptomic analysis of tomato rhizospheres reveals insight into plant-microbiome molecular response to biochar-amended organic soil

Hewitt,

Ghogare,

Troxel

et al. 2023

Front. Anal. Sci.

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We characterized the effects of crop residue derived biochar on tomato growth, soil microbial diversity, and rhizosphere-level gene expression responses in an organic production system. Shoot fresh biomass and fruit yield were assessed at the end of the growing cycle. The corresponding transcriptomic response of the roots, the soil microbial community profiles, and the active transcripts within the communities were quantified using a metatranscriptomic approach at four different developmental stages of the plant. Biochar treatment did not impact shoot biomass or fruit production; however, metatranscriptome analysis revealed that the gene expression activity of the tomato rhizosphere changes over time in response to the biochar treatment, with a number of bacteria with known benefits to soil health and plant growth displaying increased gene expression (e.g., Rhizobiaceae, Pseudomonadaceae, Micromonosporaceae, Sphingomonadaceae). Streptomycetaceae were expressed at the highest levels in the rhizosphere. Biochar seemed to attenuate the expression of this bacteria by the end of the time course, possibly due to the rise in competition for resources driven by the increased activity of other beneficial microbes. Notably, pathogenic fungi in the soil displayed generally reduced expression in the biochar-amended rhizosphere in comparison with the control. In addition to the assessment of the rhizosphere microbiome, transcriptome analysis and gene ontology analysis of tomato roots revealed functional enrichment of genes associated with nitrogen metabolic processes, regulation of metabolic processes, and production of organic compounds in the biochar treated rhizosphere. Together, these results suggest that biochar amendment enhances gene expression of beneficial soil microbes, and also impacts gene expression in the plant roots, which may in turn lead to improvements in soil and plant health. The results of this study provide foundations and a methodology for using metatranscriptomic approaches to investigate the impacts of biochar or other soil amendments in different crops, varying soil types, and with greater experimental complexity. The findings of such investigations will inform the development of biochar-based soil amendment strategies to enhance soil fertility and crop health in a wide range of production systems.

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Section: Expression Of Top Microbial Taxamentioning

confidence: 93%

Metatranscriptomic analysis of tomato rhizospheres reveals insight into plant-microbiome molecular response to biochar-amended organic soil

Hewitt,

Ghogare,

Troxel

et al. 2023

Front. Anal. Sci.

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“…Compared to biochar derived from plants on land, aquatic biomass biochar generally exhibits cation exchange capacity (CEC) and lower SSA, as well as higher ash content [39,40]. The effectiveness of different sources of biochar depends on the ash content.…”

Section: Feedstockmentioning

confidence: 99%

Degradation of Water Pollutants by Biochar Combined with Advanced Oxidation: A Systematic Review

Kong,

Liu,

Xiang

et al. 2024

Water

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Recently, biochar has emerged as a promising option for environmentally friendly remediation due to its cost-effectiveness, extensive surface area, porosity, and exceptional electrical conductivity. Biochar-based advanced oxidation procedures (BC-AOPs) have gained popularity as an effective approach to breaking down organic pollutants in aqueous environments. It is commonly recognized that the main reactive locations within BC-AOPs consist of functional groups found on biochar, which encompass oxygen-containing groups (OCGs), imperfections, and persistent free radicals (PFRs). Additionally, the existence of metallic components supported on biochar and foreign atoms doped into it profoundly impacts the catalytic mechanism. These components not only modify the fundamental qualities of biochar but also serve as reactive sites. Consequently, this paper offers a comprehensive review of the raw materials, preparation techniques, modification approaches, and composite catalyst preparation within the biochar catalytic system. Special attention is given to explaining the modifications in biochar properties and their impacts on catalytic activity. This paper highlights degradation mechanisms, specifically pathways that include radical and non-radical processes. Additionally, it thoroughly examines the importance of active sites as catalysts and the basic catalytic mechanism of BC-AOPs. Finally, the potential and future directions of environmental remediation using biochar catalysts and advanced oxidation processes (AOPs) are discussed. Moreover, suggestions for future advancements in BC-AOPs are provided to facilitate further development.

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Removal of environmental pollutants using biochar: current status and emerging opportunities

Song,

Chen,

et al. 2024

Environ Geochem Health

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Biochar-amended composting of lincomycin fermentation dregs promoted microbial metabolism and reduced antibiotic resistance genes

Cited by 28 publications

References 41 publications

Metatranscriptomic analysis of tomato rhizospheres reveals insight into plant-microbiome molecular response to biochar-amended organic soil

Metatranscriptomic analysis of tomato rhizospheres reveals insight into plant-microbiome molecular response to biochar-amended organic soil

Degradation of Water Pollutants by Biochar Combined with Advanced Oxidation: A Systematic Review

Removal of environmental pollutants using biochar: current status and emerging opportunities

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