Publications by authors named "Yixiao Tan"
Article Synopsis
- Bacterial defense systems are evolving to protect against mobile genetic elements (MGEs), but their distribution in engineered systems like membrane bioreactors is not well understood.
- In this study, researchers found that bacterial defense systems in activated sludge flocs and membrane-attached biofilms showed similar patterns, influenced by genome size and bacterial type, particularly under stress.
- Additionally, while most defenses were similar between bacteria and their associated MGEs, a significant portion of viral elements carried unique defense systems that may enhance bacteria's ability to adapt to environmental challenges, especially regarding biotic defense and antibiotic resistance.
Article Synopsis
- * Biochar produced at 400 °C showed the best surface properties, and adding 4 g/L significantly enhanced denitrification rates and total nitrogen removal efficiency, with batch tests and sequencing batch reactors (SBRs) showing high removal rates for COD, NH-N, and TN.
- * The study found that biochar improved enzyme activity tied to denitrification and increased the abundance of related functional genes, indicating it boosts essential biological processes, while also proposing a sustainable method for
Recalcitrance in microplastics accounts for ubiquitous white pollution. Of special interest are the capabilities of microorganisms to accelerate their degradation sustainably. Compared to the well-studied pure cultures in degrading natural polymers, the algal-bacterial symbiotic system is considered as a promising candidate for microplastics removal, cascading bottom-up impacts on ecosystem-scale processes.
View Article and Find Full Text PDFPhages are increasingly recognized for their importance in microbial aggregates, including their influence on microbial ecosystem services and biotechnology applications. However, the adaptive strategies and ecological functions of phages in different aggregates remain largely unexplored. Herein, we used membrane bioreactors to investigate bacterium-phage interactions and related microbial functions within suspended and attached microbial aggregates (SMA vs AMA).
View Article and Find Full Text PDFAlthough bacteria-phage interactions have broad environmental applications and ecological implications, the influence of phage predation on bacterial aggregation and structural stability remains largely unexplored. Herein, we demonstrate that inefficient lytic phage predation can promote host filamentous bacterium colonization onto non-host aggregates, improving the structural and hydraulic stability of the dual-species aggregates. Specifically, phage predation at 10-10 PFU/mL (i.
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