Benefits of applying organic amendments from recycled wastes for fungal community growth in restored soils of a limestone quarry in a semiarid environment

Rodríguez-Berbel, Natalia; Soria, Rocío; Ortega, Raúl; Lucas‐Borja, Manuel Esteban

doi:10.1016/j.scitotenv.2021.151226

Cited by 13 publications

(7 citation statements)

References 85 publications

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“…The most important biomarkers responding to the control without the oxygen nanobubble amendment were strictly or facultatively anaerobic, including bacteria for N 2 fixation ( Azospira, Devosia , and Paenibacillus ), anaerobic organic matter degradation ( Lautropia , Terrisporobacter , Rhodopseudomonas and Muribaculaceae ), , sulfur oxidation ( Thiobacillus ), and methanogensis and denitrification ( Geobacter ) . The most important biomarkers responding to the ONBC treatment in the fungal community include organic matter mineralization ( Aspergillus , Botryotrichum , Thermomyces , and Mortierella ) − and Cu binding ( Acremonium , Pichia , Sakaguchia , and Penicillium ). − The most important biomarkers responding to the control without the oxygen nanobubble amendment include beneficial endophytes ( Porostereum , Serendipita , and Schizothecium ), phytopathogens ( Myrmecridium , Mycosphaerella , and Stemphylium ), , and biocontrol against phytopathogens ( Fusicolla and Periconia ). , The different microbial biomarkers between the ONBC treatments and control implied that the fungi and aerobic bacteria that are beneficial for Cu binding and organic matter mineralization contributed more in response to the ONBC treatments, which could further affect Cu sequestration and nutrients availability in soil.…”

Section: Resultsmentioning

confidence: 99%

Oxygen Nanobubble-Loaded Biochars Mitigate Copper Transfer from Copper-Contaminated Soil to Rice and Improve Rice Growth

Chu

Sha

Feng

et al. 2023

ACS Sustainable Chem. Eng.

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Copper (Cu)-contaminated paddy soil has caused substantial concerns for human health through biomagnification in the soil–rice–human chain. In this study, oxygen nanobubble-loaded biochars (ONBC), including pyrochars (NPC) and hydrochars (NHC), were used to amend Cu-contaminated paddy soils and reduce rice Cu toxicity. The ONBC amendment improved the rhizospheric redox potential and dissolved oxygen concentration via slow, continuous oxygen release, promoting root iron plaque formation and effectively inhibiting root Cu influx. Moreover, the ONBC amendment improved soil microbial diversity. The abundance of bacterial genes involved in cytosolic Cu complexation and Cu export to the periplasm space for Cu stabilization markedly improved. The sequestered Cu in root iron plaque and soil bacteria inhibited Cu influx into the shoots to avoid Cu overaccumulation in the edible parts. This was reflected by the Cu content decreasing by 1.91-fold and 2.38-fold in shoots under NPC and NHC treatments, respectively. Furthermore, the improved oxygen-enriched rhizosphere environment via the ONBC amendment promoted root activity and the abundance of bacterial genes involved in nutrients mineralization, further promoting shoot biomass by 1.46-fold and 2.29-fold under NPC and NHC treatments, respectively. This study proposes an environmentally friendly strategy to mitigate Cu transfer from soil to crops and improve crop productivity.

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Section: Resultsmentioning

confidence: 99%

Oxygen Nanobubble-Loaded Biochars Mitigate Copper Transfer from Copper-Contaminated Soil to Rice and Improve Rice Growth

Chu

Sha

Feng

et al. 2023

ACS Sustainable Chem. Eng.

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“…Sludge, which is rich in organic matter and major nutrients, can improve soil physical and chemical properties which are important for plant growth ( Rodríguez-Berbel et al, 2022 ), and therefore yield. The increase in DMY must have been improved by soil properties such as CEC, organic carbon, carbonates etc.…”

Section: Resultsmentioning

confidence: 99%

Aluminum phosphate sludge as a phosphorus source for maize production under low soil phosphorus availability

Tolofari

Adesanya

Zvomuya

et al. 2022

PeerJ

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Background With increasing food demand as a consequence of the growing world population, there is a corresponding demand for additional sources of phosphorus (P). Alum-phosphate (Al-P) sludge is a by-product of wastewater treatment and can be a good source of P. In this study, the response of maize (Zea mays L.) to Al-P sludge was tested. Maize was chosen as the test crop due to its prevalent use as human and animal food and as a source of biofuel. The objective of the study was to investigate Al-P sludge as a source of P compared to a commercial fertilizer (monoammonium phosphate, MAP). Methods A growth chamber assay was conducted over four cropping cycles (45 d each). The application rate was 9.7, 19.4, 29.1 and 38.8 mg P kg−1 dry soil. Amendments were applied once at the start of the first cropping cycle. Plants were harvested after each cycle and pots were re-seeded. Dry matter yield (DMY), total P uptake, Al-P uptake, soil total P and Olsen-P concentrations, pH, and EC were measured. Results DMY was significantly greater in pots amended with Al-P sludge than in pots treated with MAP. There was a significant rate × cropping cycle interaction effect on DMY with the differences among rates in cycle 1 different from those in cycle 4. Phosphorus uptake depended on cropping cycle, P source and P application rate. With sludge uptake higher than MAP in all cycles, the highest P uptake was observed at the highest application rate except for cycle 2 where this was observed at the rate of 29.1 mg kg−1. For MAP, phosphorus recovery efficiency (PRE) at the highest rate was significantly greater than that at the lowest rate whereas PRE in cycle 1 was significantly higher than that in cycle 4. In the first two cycles, aluminum uptake was negligible in both MAP and Al-P sludge treatments; however, in cycles 3 and 4, there was significantly more Al in maize from sludge amended pots. Our results show that Al-P sludge was as effective as MAP in supplying enough P for biomass yield. We, therefore, conclude that Al-P sludge could be an alternative source of P, especially for growing maize as feedstock for bioenergy.

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“…In this way, soil multifunctionality has proven to be driven by microbial abundance, among other biotic factors (Wagg et al, 2014; Delgado-Baquerizo et al, 2017). The study of the abundance of bacteria and fungi has been found of interest for soil ecological (Singh and Gupta, 2018; Siles et al, 2023), policy-making (Guerra et al, 2021), agricultural (Wittwer et al, 2021; Hartmann and Six, 2023), and restoration (Plassart et al, 2008; Rodríguez-Berbel et al, 2022) purposes, which demonstrates the multidisciplinary importance of this parameter in soil research.…”

Section: Introductionmentioning

confidence: 99%

“…Despite a high-throughput approach has been introduced (Buyer and Sasser, 2012), PLFA analysis is very time-consuming, which is a disadvantage for studies with a large number of samples, especially given the current interest in global-and continental-scale studies (Siles et al, 2023). As an alternative to the PLFA analysis, and by modifying the MIDI (Microbial ID, Inc.) protocol, the EL-FAME method was developed (Ritchie et al, 2000;Schutter and Dick, 2000), which involves: (i) the in situ methylation of the microbial ester-linked fatty acids associated to soil microbes, (ii) the partitioning of the resulting EL-FAMEs into an organic phase, and (iii) their further analysis by GC. This method is much less time-consuming, allowing the processing of a high number of samples daily.…”

Section: Introductionmentioning

confidence: 99%

A comparison among EL-FAME, PLFA, and quantitative PCR methods to detect changes in the abundance of soil bacteria and fungi

Siles,

Gómez-Pérez,

Vera

et al. 2024

Preprint

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EL-FAME (ester-linked fatty acid methyl ester), PLFA (phospholipid fatty acid) and qPCR (quantitative PCR) of ribosomal genes are three of the most common methods used to quantify soil microbial communities. The reliability of these three methods has not been simultaneously compared in situations of rapid changes in soil microbial abundances. For this purpose, we (i) incubated badland, cropland, and forest soils with nutrients or antibiotics for 2, 7, 14, and 28 days, (ii) quantified total, bacterial, and fungal abundances through EL-FAME, PLFA, and qPCR methods, and (iii) measured soil basal respiration. The general dynamic patterns of the three soil microbial fractions in response to soil addition of nutrients and antibiotics were captured by the three methods, which led to strong and positive associations between the abundances of total microorganisms, bacteria, and fungi measured by the three techniques. However, these relationships were found to be stronger between the EL-FAME and PLFA results, indicating that reliability of the fatty-acid based methods is higher than that of the qPCR. Further, soil basal respiration was associated to a higher extent with total, bacterial, and fungal abundances captured by EL-FAME and PLFA analyses than with those measured by qPCR, which suggests that the first two methods are most closely related to the soil living microbial community. In general, dynamics in the abundance of total and bacterial communities were better captured than those of fungi. The PLFA analysis seems to perform better than the EL-FAME method in forest soil and in detecting the small antibiotic-induced decreases in microbial abundances. Since the EL-FAME method is cheaper and allows a much faster processing of samples than the PLFA method, and the reliability of both methods is similar in detecting rapid changes of soil microbial abundances, choosing EL-FAME over PLFA may be advantageous in most cases.

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Benefits of applying organic amendments from recycled wastes for fungal community growth in restored soils of a limestone quarry in a semiarid environment

Cited by 13 publications

References 85 publications

Oxygen Nanobubble-Loaded Biochars Mitigate Copper Transfer from Copper-Contaminated Soil to Rice and Improve Rice Growth

Oxygen Nanobubble-Loaded Biochars Mitigate Copper Transfer from Copper-Contaminated Soil to Rice and Improve Rice Growth

Aluminum phosphate sludge as a phosphorus source for maize production under low soil phosphorus availability

A comparison among EL-FAME, PLFA, and quantitative PCR methods to detect changes in the abundance of soil bacteria and fungi

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