Synergistic mechanism of tetracycline degradation by poor-degrading microbe Serratia marcescens cooperated with insect during environmental decomposition cycle.

The antibiotic residues in the environment disrupt ecological stability, ultimately pose potential risks to human health through the spread of the food chain. The degradation of antibiotics by insects is a crucial part of the environmental decomposition cycle, especially the synergistic effect between gut microbiota and host, which is a crucial biological principle for insects to alleviate environmental pollutants. It was known that the strain Serratia marcescens BSFL-6 efficiently degrade tetracycline collaborated with its host black soldier fly larvae, but the potential biological mechanism is still unclear.

Harnessing conductive materials for sustainable food waste treatment: Comparative evaluation of biochar and magnetite in volatile fatty acid production.

Anaerobic fermentation offers a sustainable and eco-friendly approach to converting food waste (FW) into high-value volatile fatty acids (VFAs). Although both carbon- and metal-based conductive materials can enhance VFAs yields during FW fermentation, a comprehensive comparison of these materials and their underlying mechanisms remains unexplored, limiting their practical selection and application. This study systematically investigated the differences between biochar and magnetite, which are representative carbon- and metal-based conductive materials, in promoting VFAs production during FW fermentation.

Mitigating the transfer risk of antibiotic resistance genes from fertilized soil to cherry radish during the application of insect fertilizer.

The transfer of antibiotic resistance genes (ARGs) from fertilized soil to vegetables, particularly those consumed raw, causes significant public health risks through the food chain. Black soldier fly larvae can efficiently convert animal manure into organic fertilizer with reduced antibiotic resistance. This study utilized metagenomic sequencing to investigate fields treated with control organic fertilizer (COF), black soldier fly organic fertilizer (BOF), and no fertilizer, with the aim of assessing the transfer risks of ARGs from soil to cherry radish.

Mitigating the vertical migration and leaching risks of antibiotic resistance genes through insect fertilizer application.

The leaching and vertical migration risks of antibiotic resistance genes (ARGs) from fertilized soil to groundwater poses a significant threat to ecological and public safety. Insect fertilizer, particularly black soldier fly organic fertilizer (BOF), renowned for its minimal antibiotic resistance, emerge as a promising alternative for sustainable agricultural fertilization. This study employs soil-column leaching experiments to evaluate the impact of BOF on the leaching behavior of ARGs.

Pathway of typical β-Lactam antibiotics degradation by black soldier fly and response characteristic of its intestinal microbes.

To effectively address the contamination caused by antibiotic misuse, this study was conducted to enhance the removal of amoxicillin (AMX) and penicillin sodium (PEN) by incorporating black soldier fly larvae (BSFL). The results showed that BSFL increased the degradation rates of AMX and PEN to 71.00 % and 80.

Nematodes exposed to furfural acetone exhibit a species-specific vacuolar H-ATPase response.

Furfural acetone (FAc) is widely used as an additive by the food industry, as well as an intermediate in several fine chemical industries. Its nematicidal activity against the free-living model organism Caenorhabditis elegans and the parasitic nematode Meloidogyne incognita are well known, but its molecular mechanism of action remains unclear. To deep this subject, we performed 48-h lethal tests on eight nematode species, encompassing free-living, plant-parasitic, and animal-parasitic nematodes.

Characteristics and biological mechanism of protein degradation by the black solider fly (Hermetia illucens L.) larvae gut strain Bacillus subtilis S4.

The black solider fly larvae (BSFL) can efficiently convert nitrogen in organic waste into insect protein. Bacillus subtilis S4, an efficient protein-degrading bacterium from the BSFL gut, was isolated and identified to explore the mechanism of nutrient metabolism underlying BSFL nitrogen utilization. Results showed that B.

Stimulating the biofilm formation of Bacillus populations to mitigate soil antibiotic resistome during insect fertilizer application.

Antibiotic resistance in soil introduced by organic fertilizer application pose a globally recognized threat to human health. Insect organic fertilizer may be a promising alternative due to its low antibiotic resistance. However, it is not yet clear how to regulate soil microbes to reduce antibiotic resistance in organic fertilizer agricultural application.

Nitrous oxide (NO) emissions at the air-water-sediment interfaces of cascade reservoirs in the Yunnan-Guizhou Plateau: Spatial patterns and environmental controls.

The construction of cascade reservoirs can interfere with the natural hydrologic cycles of basins, causing negative environmental effects such as altering the emission patterns of the Nitrous oxide (NO), a potent greenhouse gas. To elucidate the impact of cascade reservoirs construction on river NO emissions, we utilized the thin boundary model and the incubation experiments to estimate the NO fluxes at the air-water interface and at the water-sediment interface of cascade reservoirs on the Yunnan-Guizhou Plateau, respectively. Additionally, we explored the influence of various factors, with particular emphasis on damming, on NO emissions and production.

Insights into the reduction of antibiotic-resistant bacteria and mobile antibiotic resistance genes by black soldier fly larvae in chicken manure.

The increasing prevalence of antibiotic-resistant bacteria (ARB) from animal manure has raised concerns about the potential threats to public health. The bioconversion of animal manure with insect larvae, such as the black soldier fly larvae (BSFL, Hermetia illucens [L.]), is a promising technology for quickly attenuating ARB while also recycling waste.

Integrated transcriptomics and lipidomics investigation of the mechanism underlying the gastrointestinal mucosa damage of Loropetalum chinense (R.Br.) and its representative component.

Background: Loropetalum chinensis (R.Br) Oliv (Bhjm), a Chinese folk herbal medicine, was traditionally used in the treatment of wound bleeding and skin ulcers. A new drug named JIMUSAN granules used for gastrosia was developed by our group, and clinical trials have been approved.

Mitigation of antibiotic resistome in swine manure by black soldier fly larval conversion combined with composting.

The increasing prevalence of antibiotic resistance genes (ARGs) in animal manure has attracted considerable attention because of their potential contribution to the development of multidrug resistance worldwide. Insect technology may be a promising alternative for the rapid attenuation of ARGs in manure; however, the underlying mechanism remains unclear. This study aimed to evaluate the effects of black soldier fly (BSF, Hermetia illucens [L.

Inhibition mechanism of melanin formation based on antioxidant scavenging of reactive oxygen species.

The production of reactive oxygen species (ROS) leads to the generation of oxidative stress, which will result in the excessive production and accumulation of melanin in the body and even the occurrence of some skin diseases. The intervention of antioxidants can slow down the rate of melanin formation to some extent. In order to explore the relationship between ROS, melanin and antioxidants, this work investigated the effects of antioxidants on melanin formation by the scavenging of ROS , where zebrafish were used as the model organism in experiments.