Effect of microbial transformation induced by metallic compound additives and temperature variations during composting on suppression of soil-borne pathogens

Chang, Ruixue; Li, Yuting; Li, Naihui; Wu, Xuehong; Chen, Qing

doi:10.1016/j.jenvman.2020.111816

Cited by 22 publications

(7 citation statements)

References 60 publications

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“…Overall, the results of this study are in agreement with other studies showing that the most abundant phyla and orders (those with an elevated number of reads) throughout the composting process are: Firmicutes, Proteobacteria, Bacteroidales, and Actinobacteria [59,63,[68][69][70][71].…”

Section: Environmental Factors Influencing Micobioma the Adg And The Ddcsupporting

confidence: 92%

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Metagenomic Analysis of Bacterial Community Structure and Dynamics of a Digestate and a More Stabilized Digestate-Derived Compost from Agricultural Waste

et al. 2022

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Recycling of different products and waste materials plays a crucial role in circular economy, where the anaerobic digestion (AD) constitutes an important pillar since it reuses nutrients in the form of organic fertilizers. Knowledge about the digestate and compost microbial community structure and its variations over time is important. The aim of the current study was to investigate the microbiome of a slurry cow digestate produced on a farm (ADG) and of a more stabilized digestate-derived compost (DdC) in order to ascertain their potential uses as organic amendments in agriculture. The results from this study, based on a partial fragment of 16S bacterial rRNA NGS sequencing, showed that there is a greater microbial diversity in the DdC originated from agricultural waste compared to the ADG. Overall, the existence of a higher microbial diversity in the DdC was confirmed by an elevated number (1115) of OTUs identified, compared with the ADG (494 OTUs identified). In the DdC, 74 bacterial orders and 125 families were identified, whereas 27 bacterial orders and 54 families were identified in the ADG. Shannon diversity and Chao1 richness indexes were higher in DdC samples compared to ADG ones (Shannon: 3.014 and 1.573, Chao1: 68 and 24.75; p< 0.001 in both cases). A possible association between the microbiome composition at different stages of composting process and the role that these microorganisms may have on the quality of the compost-like substrate and its future uses is also discussed.

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Section: Environmental Factors Influencing Micobioma the Adg And The Ddcsupporting

confidence: 92%

“…It is well known that community composition in digesters is mostly influenced by operational temperatures [41,61,62]. Overall, Firmicutes and Proteobacteria diversity is greatly influenced, among other factors, by temperature variation during the composting process [63].…”

Section: Environmental Factors Influencing Micobioma the Adg And The Ddcmentioning

confidence: 99%

Metagenomic Analysis of Bacterial Community Structure and Dynamics of a Digestate and a More Stabilized Digestate-Derived Compost from Agricultural Waste

et al. 2022

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“…Composting is a self-heating biological process, and the heat is a product of aerobic microbial degradation of organic matter. The produced heat influences moisture and microbial community structure [ 37 ]. High temperatures have been shown to dry out the compost and inhibit the composting process.…”

Section: Overview Of Organic Waste Composting Processmentioning

confidence: 99%

Composting and its application in bioremediation of organic contaminants

et al. 2022

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This review investigates the findings of the most up-to-date literature on bioremediation via composting technology. Studies on bioremediation via composting began during the 1990s and have exponentially increased over the years. A total of 655 articles have been published since then, with 40% published in the last six years. The robustness, low cost, and easy operation of composting technology make it an attractive bioremediation strategy for organic contaminants prevalent in soils and sediment. Successful pilot-and large-scale bioremediation of organic contaminants, e.g., total petroleum hydrocarbons, plasticizers, and persistent organic pollutants (POPs) by composting, has been documented in the literature. For example, composting could remediate >90% diesel with concentrations as high as 26,315 mg kg −a of initial composting material after 24 days. Composting has unique advantages over traditional single- and multi-strain bioaugmentation approaches, including a diverse microbial community, ease of operation, and the ability to handle higher concentrations. Bioremediation via composting depends on the diverse microbial community; thus, key parameters, including nutrients (C/N ratio = 25–30), moisture (55–65%), and oxygen content (O 2 > 10%) should be optimized for successful bioremediation. This review will provide bioremediation and composting researchers with the most recent finding in the field and stimulate new research ideas.

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“…Based on previous results, PcoA was used to study the similarity or difference of all microbial communities (Wang et al, 2018;Chang et al, 2021). Points with the same color represent different samples within the same treatment, and the distance between samples correspond to the size of differences between microbial communities under the six different treatments.…”

Section: Alpha Diversity Of Bacterial Communitymentioning

confidence: 99%

Ciprofloxacin Causes the Greatest Bacterial Community Variation in Swine Manure Composting

Song¹,

Zhu²,

Li³

et al. 2021

Front. Environ. Sci.

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In this study, the influence of ciprofloxacin, chlorotetracycline, lincomycin, and sulfamethoxazole on the composition of the bacterial community structure was studied during aerobic composting with swine manure. Firmicutes (26.67%) and Chloroflexi (23.33%) were the most widely distributed phyla. Under all antibiotic treatments, the relative abundances of Bacillaceae, Streptosporangiaceae, Limnochordaceae, and Peptostreptococcaceae increased during the composting process. Moreover, norank_SBR1031, Planococcaceae, Thermomonosporaceae, Peptostreptococcaceae, Erysipelotrichaceae, Limnochordaceae, and Clostridiaceae_1 were the families showing the most significant differences across all treatments (p < 0.05). Principal co-ordinates analysis indicated that the family composition in the ciprofloxacin treatment significantly differed from the other treatments. The presence of ciprofloxacin increased both the abundance and diversity of the bacterial community (the Chao index changed from 588.44 to 680.17, and the Shannon index changed from 3.41 to 4.06) in the end of composting. Crocinitomicaceae dominated (relative abundance of 79.10%) among the unique families in the ciprofloxacin treatment. Network analysis indicated that ciprofloxacin altered the synergistic or competitive relationships between different families (norank_SBR1031 and Microscillaceae), leading to different bacterial community composition compared with other treatments. Further, a structural equation model showed that the C:N ratio was significantly negatively correlated with the bacterial community (λ = −0.869, p < 0.01), whereas pH showed a direct, significant positive relationship with the bacterial community (λ = 0.701, p < 0.01), especially in ciprofloxacin treatment. Overall, ciprofloxacin significantly influenced the physical and chemical properties of composting, altered the bacterial community structure. These findings have important implications for a better understanding of the effects of antibiotic types on bacterial community structure and the involved mechanisms during swine manure composting.

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Effect of microbial transformation induced by metallic compound additives and temperature variations during composting on suppression of soil-borne pathogens

Cited by 22 publications

References 60 publications

Metagenomic Analysis of Bacterial Community Structure and Dynamics of a Digestate and a More Stabilized Digestate-Derived Compost from Agricultural Waste

Metagenomic Analysis of Bacterial Community Structure and Dynamics of a Digestate and a More Stabilized Digestate-Derived Compost from Agricultural Waste

Composting and its application in bioremediation of organic contaminants

Ciprofloxacin Causes the Greatest Bacterial Community Variation in Swine Manure Composting

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