微塑料(MPs),在海洋中发现,湖泊,和河流,可以通过生物体的摄入渗透到食物链中,潜在的健康风险。我们的研究首次研究了博斯腾湖沉积物中MPs的组成和分布。五月,MPs的平均丰度为每10克0.95±0.72个颗粒,在十月,它是每10克0.90±0.61个颗粒。博湖镇拥有最高的MP丰度,春季每10g有1.75±0.35个颗粒,秋季每10g有2±0个颗粒。五月,53%的议员是透明的,而在十月,黑人议员占58%。主要形态为纤维状,占总数的61%。在5月和10月,尺寸范围为0.2-1毫米的MP占总数的91%和66%,分别。5月份最常见的MP类型是40%的聚对苯二甲酸乙二醇酯(PET)和26%的聚乙烯(PE)。十月,PET是最普遍的71%,随后是11%的聚(醚-醚-酮)(PEEK)。某些微生物类群,比如放线菌,假单胞菌,和Vicinamibacteraceae,与MP降解或复杂的碳链断裂相关,在MP浓度高的沉积物区域中明显富集。在沉积物中MPs的丰度与放线菌之间观察到显着的正相关。此外,硫杆菌的丰度,Cac.competitivebacter,和其他参与土壤元素循环的细菌与沉积物中有机质含量呈显著正相关。厌氧菌等厌氧细菌与水深呈显着正相关。我们的研究揭示了存在,composition,和MP在博斯腾湖沉积物中的分布,揭示了它们潜在的生态影响。
Microplastics (MPs), discovered in oceans, lakes, and rivers, can infiltrate the food chain through ingestion by organisms, potentially posing health risks. Our research is the first to study the composition and distribution of MPs in Bosten Lake\'s sediment. In May, the average abundance of MPs was 0.95±0.72 particles per 10 gs, and in October, it was 0.90±0.61 particles per 10 gs. Bohu Town had the highest MP abundance, with 1.75±0.35 particles per 10 gs in spring and 2 ± 0 particles per 10 gs in autumn. In May, 53 % of the MPs were transparent, while in October, black MPs constituted 58 %. The predominant morphology was fibrous, accounting for 61 % of the total. MPs in the size range of 0.2-1 mm made up 91 % and 66 % of the total in May and October, respectively. The most common types of MPs in May were polyethylene terephthalate (PET) at 40 % and polyethylene (PE) at 26 %. In October, PET was the most prevalent at 71 %, followed by poly(ether-ether-ketone)(PEEK) at 11 %. Certain microbial taxa, such as Actinobacteriota, Pseudomonas, and Vicinamibacteraceae, associated with MP degradation or complex carbon chain breakdown, were notably enriched in sediment areas with high MP concentrations. A significant positive correlation was observed between the abundance of MPs in sediments and Actinobacteriota. Additionally, the abundance of Thiobacillus, Ca.competibacter, and other bacteria involved in soil element cycling showed a significant positive correlation with the organic matter content in the sediments. Anaerobic bacteria like Thermoanaerobacterium displayed a significant positive correlation with water depth. Our study reveals the presence, composition, and distribution of MPs in Bosten Lake\'s sediments, shedding light on their potential ecological impact.