聚烯微塑料通过破坏肠道微生物群和新陈代谢来降低蜜蜂的生存率
Han Li1, Wangjiang Feng1, Tong An1
1State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100093, China.
Environmental toxicology and pharmacology
|April 24, 2025
概括
聚乙烯微塑料 (PS-MPs) 通过破坏它们的肠道,改变肠道微生物和破坏新陈代谢来伤害蜜蜂,导致生存率降低. 这凸显了迫切需要管理塑料污染影响重要的授粉者.
科学领域:
- 环境科学 环境科学
- 生态毒理学 生态毒理学
- 养蜂 养蜂 养蜂 养蜂 养蜂 养蜂 养蜂 养蜂
背景情况:
- 微塑料 (MP) 污染是一个日益严重的环境问题.
- 聚烯微塑料 (PS-MPs) 对蜜蜂 (Apis mellifera L.) 健康的影响,特别是通过肠道和代谢干扰,尚不清楚.
研究的目的:
- 研究PS-MPs对蜜蜂生存,肠道结构,微生物群落和新陈代谢的生理影响.
- 阐明PS-MPs对蜜蜂健康产生不利影响的机制.
主要方法:
- 蜜蜂被暴露于PS-MPs (0.5微米和5微米) 的25毫克/升和50毫克/升,持续21天.
- 评估了蜜蜂的生存率,食物消耗,肠道组织学,氧化应激,肠道微生物组成和肠道代谢学.
主要成果:
- PS-MPs显著降低了蜜蜂的生存率和食物摄入量.
- 累积的PS-MPs导致肠壁受损,氧化应激增加,肠道微生物群发生变化 (乳酸菌减少,巴顿氏菌增加).
- 代谢学揭示了代谢途径的破坏,包括上调的氨基酸/碳水化合物代谢和下调的脂质代谢.
结论:
- PS-MPs通过诱导肠道损伤,失生症和代谢障碍,对蜜蜂健康构成重大威胁.
- 调查结果强调,急需制定战略,减轻影响授粉者的环境微塑料污染.
相关概念视频
Microbial Bioremediation of Pesticides
85
Pesticides often feature structurally complex chemical architectures, incorporating halogen groups and multiple aromatic rings. These characteristics confer high chemical stability, rendering many pesticides resistant to natural degradation processes. This resistance poses significant environmental concerns, as persistent pesticide residues can accumulate in ecosystems and affect non-target organisms.Despite the inherent stability of many pesticides, certain microorganisms possess the metabolic...
85
Bioplastics
70
Bioplastics derived from microbial processes present a sustainable alternative to conventional petroleum-based plastics. Among these, polyhydroxyalkanoates (PHAs), particularly polyhydroxybutyrates (PHBs), have emerged as prominent candidates due to their biodegradability and biocompatibility. These polymers are synthesized by a variety of bacteria, such as Cupriavidus necator and Pseudomonas putida, which naturally accumulate PHAs as intracellular carbon and energy reserves, especially under...
70
Microbial Bioremediation of Plastics
131
Polyethylene terephthalate (PET) is a synthetic polymer widely utilized in the packaging industry, particularly for bottles and containers. Due to its chemical stability and durability, PET accumulates in the environment, contributing significantly to plastic pollution. It comprises repeating units of terephthalic acid and ethylene glycol, resulting in a semi-crystalline structure that is resistant to natural degradation processes.A notable breakthrough in plastic biodegradation came with the...
131


