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... Due to higher microbial activity and diversity, organic farming serves as a sustainable alternative in preventing several soil-borne plant diseases. However, there are limited studies that have shown direct relationship between soil bacterial composition and its effect on disease suppressive potential under different farming systems. Thus, the objective of the study was to understand the effect of ...
... A typical anthropogenically disturbed urban river polluted by a combination of conventional pollutants (nitrogen and phosphorus pollution) and heavy metals was investigated along a 238 km stretch. Changes in the bacterial community were evaluated using high-throughput sequencing, and the relationships between bacteria, heavy metals, and conventional pollutants were investigated. There was large sp ...
... Bacterial communities producing ectoine were studied in the rhizosphere of red goosefoot (Chenopodium rubrum L.) and weeping alkaligrass (Puccinellia distans (Jacq.) Parl.) growing on technogenic soil (Technosol) near the salt dump of the Solikamsk Potash Industrial Ore Administration 2 (SPIOA 2) of Uralkali PJSC (Solikamsk, Perm region) in order to assess the effect of this osmoprotective compoun ...
Daiane dos Santos; Gherman de Araújo; Edson Mauro Santos; Juliana de Oliveira; Érica Lambais; George Lambais; Hideo Nagahama; Anderson Zanine; Francisco Naysson Santos; Rafael Soares; Gilberto Sobral; Evandra Justino; Mateus Lemos; Celso José de Oliveira
Bacteroides; Cenchrus ciliaris; Escherichia coli; Lactobacillus; Leuconostoc; Pseudomonas; Sphingobacterium; Sphingomonas; Weissella; agronomy; air; animal and human health; bacterial communities; cacti and succulents; chemical composition; culture media; diet; experimental design; exposure duration; forage; grass hay; microbial activity; pathogenicity; population growth
Abstract:
... The chemical composition of cactus forage becomes a favorable culture medium for accelerated microbial activity when exposed to air, as it contains high content of non-fiber carbohydrates and water. Thus, the aim of this study was to evaluate the bacterial community dynamics of different mixtures, using fresh forage of cactus and buffel grass hay as a function of the period of exposure to air. The ...
Clara Ivette Rincón-Molina; Esperanza Martínez-Romero; José Luis Aguirre-Noyola; Luis Alberto Manzano-Gómez; Adalberto Zenteno-Rojas; Marco Antonio Rogel; Francisco Alexander Rincón-Molina; Víctor Manuel Ruíz-Valdiviezo; Reiner Rincón-Rosales
... Microorganisms in extreme volcanic environments play an important role in the development of plants on newly exposed substrates. In this work, we studied the structure and diversity of a bacterial community associated to Andropogon glomeratus and Cheilanthes aemula at El Chichón volcano. The genetic diversity of the strains was revealed by genomic fingerprints and by 16S rDNA gene sequencing. Furt ...
Pseudomonas; air; bacterial communities; community structure; disinfection; equipment; food microbiology; food quality; genes; nanopores; raw materials; salmon; slaughter; spatial variation
Abstract:
... The bacterial diversity and load on equipment in food processing facilities is constantly influenced by raw material, water, air, and staff. Despite regular cleaning and disinfection, some bacteria may persist and thereby potentially compromise food quality and safety. Little is known about how bacterial communities in a new food processing facility gradually establish themselves. Here, the develo ...
Burkholderia; Corynebacterium; Enterococcus; Flavobacterium; Pseudogymnoascus destructans; Pseudomonas; Rhinolophus ferrumequinum; bacterial communities; body condition; community structure; fungi; pathogens; temperature; white-nose syndrome
Abstract:
... The bats skin microbiota plays an important role in reducing pathogen infection, including the deadly fungal pathogen Pseudogymnoascus destructans, the causative agent of white‐nose syndrome. However, the dynamic of skin bacterial communities response to environmental perturbations remains poorly described. We characterized skin bacterial community over time and space in Rhinolophus ferrumequinum, ...
Miguel Rabelo-Ruiz; Antonio M. Newman-Portela; Juan Manuel Peralta-Sánchez; Antonio Manuel Martín-Platero; María del Mar Agraso; Laura Bermúdez; María Arántzazu Aguinaga; Alberto Baños; Mercedes Maqueda; Eva Valdivia; Manuel Martínez-Bueno
... This study analyzes the potential use of an Allium-derived compound, propyl propane thiosulfonate (PTSO), as a functional feed additive in aquaculture. Gilthead seabream (Sparus aurata) juveniles had their diet supplemented with this Allium-derived compound (150 mg/kg of PTSO) and were compared with control fish. The effects of this organosulfur compound were tested by measuring the body weight an ...
... Replanting disease is a growing problem in intensive agricultural systems. Application of bio-fertilizer containing beneficial microbes contributes to disease suppression and is a promising strategy to control replanting disease. However, the effect of both replanting disease and bio-fertilizer amendment on the assembly of crop microbiota in leaves and roots and their relationships to crop yield a ...
Filomicrobium; Haliscomenobacter; Pseudomonas; Serratia; ammonia; ammonium nitrogen; bacterial communities; biofilm; community structure; denitrification; evolution; nitrogen; oxidation; polyethylene; stainless steel; total nitrogen; water purification; water quality; water transportation
Abstract:
... Pipe wall biofilm plays a vital role in water quality purification in raw water transportation system (RWTS). This study investigated the pollutants removal, bacterial community (abundant, rare and functional taxa) variations, and their correlations during biofilm development process under different pipe materials and raw water quality. Polyethylene pipe had higher removal efficiency on ammonia ni ...
... Fermentation of paocai is a dynamic process of the microbial community structure, and the interaction between community structure and physicochemical factors endows paocai with unique taste and flavor. The study of bacterial and fungal community structure changes and the driving mechanism of physicochemical factors induced changes in community structure, showing that Pseudomonas belonging to Prote ...
... Zoning is typically adopted by food manufacturers and classified into three different zones including Zone 1 (food contact surface), Zone 2 (proximity to food and food contact surfaces) and Zone 3 (remote surfaces from processing). In this study, environmental surfaces belonging to these three zones were sampled during food processing in a fresh-cut vegetables (FVs) processing facility located in ...
... Xiguajiang (XGJ) is one kind of Chinese traditionally fermented soybean food. The aim of this study was to identify core bacterial communities and volatile compounds and explore their relationships in XGJ samples obtained from different manufacturers. Results showed that Bacillus, Staphylococcus, Weissella, and Chromohalobacter were the predominant bacterial genus, although their relative abundanc ...
... The mud snail Cipangopaludina cathayensis is a widely distributed species in China. Particularly in Guangxi province, mud snail farming contributes significantly to the economic development. However, global warming in recent decades poses a serious threat to global aquaculture production. The rising water temperature is harmful to aquatic animals. The present study explored the effects of high tem ...
... Composting is an efficient way of disposing agricultural solid wastes as well as passivating heavy metals (HMs). Herein, equivalent (3%) biochar (BC) or lime (LM) were applied in rice straw and swine manure composting, with no additives applied as control group (CK). The results indicated that both the additives increased NO₃-N content, organic matter degradation, humus formation, and HM immobili ...
... Condensed tannins (CT) have been reported to induce intestinal injury of fish, whereas the injury mechanism is unclear. This study evaluated the effects of dietary grape seed CT on growth, intestinal permeability, tight junction structure, intestinal digestive and brush border enzyme activity, bacterial community and intestinal metabolites of Chinese seabass (Lateolabrax maculatus). A total of 640 ...
Pseudomonas; Sphingomonas; bacterial communities; biodegradability; community structure; microbiome; pH; plastic film mulches; pollution; polylactic acid; soil water; weight loss
Abstract:
... Biodegradable plastic mulch film (BDM) is an environmentally friendly alternative to conventional polyethylene mulch, and has been growingly used in agriculture. However, practical degradation performance of BDM, especially the widely used type of blended polylactic acid (PLA)/polybutylene adipate (PBAT) in different ratios, and microbial alteration in soil environments, remain largely unrevealed. ...
... Copper and Zinc oxides nanoparticles (CuO and ZnO NPs, respectively) are among the most produced and commonly used engineered nanomaterials. They can be released into the environment, thereby causing health concerns and risks to biodiversity that indicate a need to evaluate their toxicological effects in a complex situation. Here, we used the insect model organism silkworm Bombyx mori to address t ...
Pseudomonas; Sphingomonas; adenosine triphosphate; bacterial communities; biofilm; biomass; high-throughput nucleotide sequencing; tap water; water quality; China
Abstract:
... Drinking water quality deteriorates from treatment plant to customer taps, especially in the plumbing system. There is no direct evidence about what the differences are contributed by plumbing system. This study compared the water quality in the water main and at customer tap by preparing a sampling tap on the water main. The biomass was quantified by adenosine triphosphate (ATP) and the microbial ...
... Dryocosmus kuriphilus (Hymenoptera: Cynipidae) induces galls on chestnut trees, which results in massive yield losses worldwide. Torymus sinensis (Hymenoptera: Torymidae) is a host-specific parasitoid that phenologically synchronizes with D. kuriphilus. Bacteria play important roles in the life cycle of galling insects. The aim of this research is to investigate the bacterial communities and predo ...
... Bacteria are considered an essential influence factor of flavor compounds during vegetable fermentation. This study explored the dynamic evolution of flavor substances and bacterial communities during the fermentation of leaf mustard and revealed their potential relationship. The 16S rRNA gene sequencing revealed that Acinetobacter and Pseudomonas dominated during the first two days. As the fermen ...
... The impact of scleral protein shell (SPS) amendment on bacterial community succession during pig manure (PM) composting were evaluated in the present work. Five treatments representing different dry weight dosage of SPS [0 % (T1), 2.5 % (T2), 5 % (T3), 7.5 % (T4), 10 % (T5) and 12 % (T6)] were applied with initial mixture of raw materials (Wheat straw along with the PM) and composted for 42 days. ...
... Mongolian cheese was sterilized by using supercritical carbon dioxide (SC–CO₂) treatment at three pressures (10, 15 and 20 MPa) and three temperatures (40, 50 and 60 °C). The optimum SC-CO₂ condition (20 MPa and 60 °C) could achieve complete inactivation of bacteria. Preservation of Mongolian cheese was assessed at 25 °C for 20 d by analyzing texture, bacterial communities and volatile compounds, ...
... This study investigated the effects of chloramphenicol (CAP) pressure on denitrification performance, electricity generation performance, the expression of antibiotic resistance genes (ARGs), and microbial community structure in microbial fuel cell (MFC) system and plain anaerobic reactor. The results showed that the MFC had better denitrification and CAP degradation performances under CAP stress. ...
... Stellera chamaejasme has become a problematic weed in northern and south‐western grasslands of China. To evaluate a possible role of endophytes in its strong competitive capacity, the endophytic bacterial community of S. chamaejasme was investigated by culture‐dependent and independent methods, and the growth‐promoting traits of some culturable isolates as well as the benefit of endophyte ST3CS3 ( ...
... With the increasing discharge of wastewater produced from industrial manufacture, the accumulation of recalcitrant and toxic contaminants such as N-methylpyrrolidone (NMP) in ecosystem has raised concerns about their environmental implication. In this study, a denitrification bioreactor was developed and continuously performed for 245 days to realize simultaneous NMP mineralization and nitrate red ...
... The co-treatment of solid waste has become a new trend of rural waste disposal in China in the future. However, the quality of compost products after co-treatment remains still ill-defined, especially the characteristics of microbiome related to the environmental safety of organic fertilizer. Here we investigated the composition and structure of bacteria in the composted products with different co ...
... The Ganga is a major riverine system of India providing ecosystem services to millions of households. However, this river is under stress due to various anthropogenic activities. River sediment harbours a variety of microorganisms which has a tremendous influence on river health. In the present study, metagenomic approach for microbial community characterization of three sediment samples collected ...
... The aim of this study was to explore the dynamic of microbial community and metabolic function in food waste composting amended with traditional Chinese medicine residues (TCMRs). Results suggested that TCMRs addition at up to 10% leads to a higher peak temperature (60.5 °C), germination index (GI) value (119.26%), and a greater reduction in total organic carbon (TOC) content (8.08%). 10% TCMRs si ...
... Around 100 Mt of phosphogypsum (PG) have been deposited in large stacks on the salt marshes of the Tinto River estuary in Huelva (SW Spain), covering about 1000 ha. These stacks contain extremely acidic water (pH < 2) with high concentrations of pollutants which can cause emissions into their surroundings, generating important environmental concerns. Despite many chemical, geological or hydrologic ...
... Biochar has direct or indirect effects on soil microorganisms, but the changes in soil metabolism are rarely monitored and analyzed. In addition, the potassium (K) effect of biochar has not attracted much attention. This study set up a four-year experiment with acid soil and citrus as the test soil and plants, respectively. The long-term effects of biochar on the acid soil microenvironment and cit ...
... Identification of dissimilatory nitrate reduction to ammonium (DNRA) and denitrification in the dynamic cake layer of a full-scale anoixc dynamic membrane bioreactor (AnDMBR) for treating hotel laundry wastewater was studied. A series of experiments were conducted to understand the contributions of DNRA and canonical denitrification activities in the dynamic cake layer of the AnDMBR. The dynamic c ...
... Estuarine sediments near former creosoting facilities along the Elizabeth River (Virginia, USA) are contaminated by polycyclic aromatic hydrocarbons (PAHs). In this study, we interrogated the bacterial community of the Elizabeth River with both culture-based and culture-independent methods to identify potential candidates for bioremediation of these contaminants. DNA-based stable isotope probing ( ...
Actinobacteria; Pseudomonas; Sphingomonas; bacterial communities; biofilm; biomass; biosafety; chlorination; chlorine; community structure; disinfectants; ecosystems; infectious diseases; iron; multivariate analysis; polyethylene; polysaccharides; prediction; steel; water distribution; water quality
Abstract:
... Pipe material and residual chlorine are key factors for the drinking water distribution system, and understanding the biofilm ecosystem is vital for water quality safeguard. The aim of our study was to determine the influence of pipe materials (ductile iron, steel, polyethylene) and chlorination on the biofilm structure and microbial community, as shown by the physicochemical properties, extracell ...
... This study aimed to investigate the effects of antibacterial substances embedded in nanoemulsions on the volatile compounds and the bacterial community composition of refrigerated pork stored at 4 °C for 12 days, and to evaluate the relationship between volatile components and bacterial diversity of refrigerated pork. As compared to the control (CK) group, the treatment groups (thyme essential oil ...
... Microbial remediation, especially the application of probiotics, has recently gained popularity in improving water quality and maintaining aquatic animal health. The efficacy and mechanism of mixed Bacillus for improvement of water quality and its effects on aquatic microbial community structure remain unknown. To elucidate these issues, we applied two groups of mixed Bacillus (Bacillus megaterium ...
... Plant growth and productivity depend on the complex and dynamic interaction between the plant roots and soil microorganisms. At present, the research on rhizosphere associated microbes is largely focused on bacteria and fungi; whereas the interaction of soil protists with plants and other microbes remains unexplored. The present study aimed to investigate the interactive impact of a ciliate (Kreye ...
... Landfills are important emission sources of atmospheric N₂O, especially bioreactor landfills with leachate recirculation. In this study, N₂O emissions were characterized in four bioreactor landfills with different ventilation methods, including intermittent (2-h aeration per 12 h or 4 h/d in continuous) and continuous aeration (20 h/d), in comparison to a traditional landfill without aeration. Dur ...
... Microbial contamination and nitrite accumulation are the two major concerns in the quality control of fermented vegetables. In the present study, a lactic acid bacteria strain Lactobacillus plantarum ZJ316 (ZJ316) was inoculated during Stachys sieboldii Miq. (SSM) fermentation, and the effects of ZJ316 on the quality and bacterial community of SSM during fermentation were investigated. It was obse ...
Pseudomonas; alkaline phosphatase; bacterial communities; fertilizers; field experimentation; genes; soil; soil organic carbon; total nitrogen; wheat
Abstract:
... PhoD-harboring bacteria and the secreted alkaline phosphatases (ALP) are crucial in the regulation of soil phosphorus (P) cycling. However, the influential factors of these crucial indicators and their internal interactions remain controversial. Here, a long-term field experiment containing different fertilization regimes was conducted (chemical, organic, and no fertilizer applied). The results in ...
... To meet the rapidly growing global demand for aquaculture products, large amounts of antibiotics were used in aquaculture, which might accelerate the evolution of antibiotic-resistant bacteria (ARB) and the propagation of antibiotic genes (ARGs). In our research, we revealed the ARGs profiles, their co-occurrence with mobile genetic elements (MGEs), and potential hosts in sediments of a crab pond ...
... In the present study, the bacterial community structure of enrichment cultures degrading benzene under microaerobic conditions was investigated through culturing and 16S rRNA gene Illumina amplicon sequencing. Enrichments were dominated by members of the genus Rhodoferax followed by Pseudomonas and Acidovorax. Additionally, a pale amber-coloured, motile, Gram-stain-negative bacterium, designated B ...
... Wastewater treatment plant (WWTP) effluents are pointed as hotspots for the introduction of both commensal and pathogenic bacteria as well as their antibiotic resistance genes (ARGs) in receiving water bodies. For the first time, the effect of partially treated submarine effluents was explored at the bottom and surface of the water column to provide a comprehensive overview of the structure of the ...
... Scalp pruritus is a common skin problem that remains therapeutic challenge. The relationships between the dysbiosis of microbiota and skin diseases have caught attention recently. However, there are few reports about microbiota on itchy scalp. This study investigated scalp microbial characteristics of subjects with mild scalp pruritus of undetermined origin and preliminarily screened physiological ...
... Substantial outbreaks of cyanobacterial harmful algal blooms (cyanoHABs) are accompanied by the prevalent existence of microcystins (MCs) in eutrophic freshwater worldwide, which can compromise the safety of aquatic ecosystems and public health. However, the response of the sediment microbial community to MCs exposure remains unclear. In this study, the sediment microbial communities of Lake Taihu ...
... BACKGROUND: Bacterial community successions were surveyed during the processing stages of sugar production using high‐throughput sequencing methods. Furthermore, the correlation between bacterial community and nitrate/nitrite content in beet sugar processing were investigated. RESULTS: In an analysis of the V3–V4 region of the 16S rDNA gene, 254 122 effective sequences were obtained from samples, ...
... Plastic pollution has become a serious issue of global concern, and biodegradation of plastic wastes is representing one attractive environment-friendly alternative to traditional disposal paths. It is known that insects are involved in the plastic polymer degradation process, with reported evidence of tenebrionid beetle larvae capable to degrade polystyrene (PS), one of the most used plastics wor ...
... High-throughput sequencing, culture-dependent workflows, and microbiome transfer experiments reveal whether potassium phosphite (KP), an environmentally acceptable agricultural chemical, could specifically enrich the antagonistic bacterial community that inhibited the growth of the pathogen Ralstonia solanacearum. The application of KP enriched the potential antagonistic bacteria Paenibacillus and ...
... The cyanobacterium Synechocystis with high scientific research value and application potential to aquaculture is hard to harvest its biomass. Bioflocculation is an economical and efficient method for harvesting microalgal biomass. In this study, Aspergillus niger 7806F3, a fungus that showed high flocculation activity on Synechocystis cells, was selected to assess its potential for the harvest of ...
... Cadmium (Cd) pollution of paddy soils is one of the main concerns causing food security and environmental problems. Microbial bioremediation is an effective and eco-friendly measure that uses microbes to reduce Cd accumulation in crops. Additionally, rhizosphere bacterial communities also act essential roles in crop tolerance of heavy metals. However, the effects of inoculations with Cd resistant ...