Defined and natural PAH contaminations shift PAH-degrading bacterial community in rhizosphere of ornamental plant species Echinacea purpurea L.

Sun, Caixia; Jiahui, Xiao; Bai, Lei; Bai, J. Z.; Liu, J.-Q.; Li, Geng; Zhang, Yu Lan

doi:10.1016/j.eti.2023.103189

Cited by 4 publications

(2 citation statements)

References 54 publications

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“…The raw sequence data have been accessioned in the sequence read archive of NCBI, United States (SRA accession: PRJNA985386 and PRJNA986449). Sequencing data were processed following the previously used method of Sun et al (2023). Moreover, the bacterial and fungal functional groups were predicted by the FAPROTAX (Louca et al, 2016) and FUNGuild (Nguyen et al, 2016) functional annotations dataset, respectively.…”

Section: Soil Dna Extraction Quantitative Pcr (Q-pcr) and Illumina Mi...mentioning

confidence: 99%

Microbial community and network differently reshaped by crushed straw or biochar incorporation and associated with nitrogen fertilizer level

Song

Wang

et al. 2023

GCB Bioenergy

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Straw returning has been demonstrated as a beneficial approach for the utilization of renewable biomass source, which contributes to reducing environmental pollution and strengthening the sustainability of agriculture. However, information on how microorganisms respond to different straw return modes (SRMs) at varying nitrogen fertilizer levels (NFLs) in the black soil is still limited. The community composition, network pattern, and modular function of bacteria and fungi are investigated under three SRMs, including straw removal (CK), crushed straw incorporation (SD), and biochar incorporation (BC) at three NFLs (0, 144, and 240 kg N ha−1, respectively) mainly using Illumina MiSeq technique based on a long‐term maize field experiment. Results showed that bacterial richness, diversity, and fungal richness decreased with NFL reduction. However, these decreases can be compensated by SD and BC, demonstrating superiority for BC at reduced NFLs. SD and BC differed in their effects on the bacterial and fungal abundances (showing increments only in SD) and fungal Shannon diversity (remaining stable only in BC irrespective of NFLs). Microbial communities were substantially affected by SRMs and interacted with NFLs, which were driven by soil NH4+‐N, available potassium, total nitrogen, and pH. In addition, SD induced a network characterized by its highly complex (average degree 10.259 vs. 3.364) and stable structure (average clustering coefficient 0.503 vs. 0.239), Ascomycota as predominating keystone taxa, and abundant N‐cycling related bacteria, while BC formed a network comprising a superior modular structure (modularity 2.599 vs. 0.912), dominant symbiotic fungi, and soil bulk density as specific shaping factor, indicating that network pattern, keystone taxa, modular function, and determining factors shifted between SD and BC co‐occurrence networks. These results deepen insights into the response divergence of bacteria and fungi to SRMs and NFLs, providing a scientific basis for selecting the suitable strategy for sustainable straw utilization in the black soil area.

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Section: Soil Dna Extraction Quantitative Pcr (Q-pcr) and Illumina Mi...mentioning

confidence: 99%

Microbial community and network differently reshaped by crushed straw or biochar incorporation and associated with nitrogen fertilizer level

Song

Wang

et al. 2023

GCB Bioenergy

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“…Phytoremediation studies conducted using Echinacea purpurea have shown that the plant has a high tolerance for petroleum and is suitable for remediating soils with petroleum concentrations exceeding 10,000 mg/kg [11]. In addition, purple coneflower has been proven to be effective in cleaning up soils polluted with PAHs and alkyl-PAHs [13][14][15][16]. A few studies also suggest that Echinacea purpurea can be used to clean up areas tainted with heavy metals [13,14].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Effectiveness of Bioaugmentation-Assisted Phytoremediation of Soils Contaminated with Petroleum Hydrocarbons Using Echinacea purpurea

Wojtowicz,

Steliga,

Kapusta

2023

Applied Sciences

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Phytoremediation supported by bioaugmentation is a promising method considered for cleaning up areas polluted with petroleum hydrocarbons. In this study, phytoremediation was carried out using Echinacea purpurea as a phytoremediant on two types of soil: Soil DW—aged soil taken from an excavation pit, Soil OS—soil taken from an oil spill area. The tests for each soil were carried out in six test systems (non-inoculation, inoculation with the B1 microbial consortium, inoculation with the B2 microbial consortium, inoculation with the B1 microbial consortium with the addition of γ-PGA (γ-poly glutamic acid), inoculation with the B2 microbial consortium with the addition of γ-PGA and inoculation with the γ-PGA solution) for 6 months. The effectiveness of the remediation treatments used was assessed based on chromatographic analyses of soil and plant material (roots, shoots) and toxicological analyses using four types of toxicological tests (PhytotoxkitTM (MicroBioTests Inc., Gent, Belgium), OstracodtoxkitTM (MicroBioTests Inc., Gent, Belgium), Microtox® Solid Phase Test (Modern Water Inc., New Castle, DE, USA), MARA (NCIMB Ltd., Aberdeen, UK)). The research conducted showed that the most effective method of bioremediation of soils contaminated with petroleum hydrocarbons was phytoremediation supported by bioaugmentation with the microbial consortium B2 with γ-PGA, which allowed for reducing the concentration of total petroleum hydrocarbons (TPHs) and polycyclic aromatic hydrocarbons (PAHs) in the tested soils by 53.98% and 49.54% (Soil DW-5) and 60.47% and 37.55% (Soil OS-5), respectively. In turn, the lowest bioremediation efficiency was recorded in non-inoculated systems, for which the concentration of TPHs and PAHs at the end of the study decreased by 18.40% and 16.14% (Soil DW-1) and 21.87% and 18.20% (Soil OS-1), respectively. The results of toxicological analyses confirmed the relationship between the concentration of TPHs and PAHs in the soil and its toxicity level.

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Root-associated bacterial communities of vegetable Brassica parachinensis enrich pollutant-degrading taxa and functions for enhancing phthalate dissipation

Wang,

Huang,

et al. 2024

Applied Soil Ecology

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Defined and natural PAH contaminations shift PAH-degrading bacterial community in rhizosphere of ornamental plant species Echinacea purpurea L.

Cited by 4 publications

References 54 publications

Microbial community and network differently reshaped by crushed straw or biochar incorporation and associated with nitrogen fertilizer level

Microbial community and network differently reshaped by crushed straw or biochar incorporation and associated with nitrogen fertilizer level

Evaluation of the Effectiveness of Bioaugmentation-Assisted Phytoremediation of Soils Contaminated with Petroleum Hydrocarbons Using Echinacea purpurea

Root-associated bacterial communities of vegetable Brassica parachinensis enrich pollutant-degrading taxa and functions for enhancing phthalate dissipation

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