Unveiling in situ methylmercury production and degradation in aquaculture sediments: Transformation rates, functional genes and microbial methylators.

• Tác giả: Baowei Chen, Xin Chen, Zhijia Ci, Ligang Hu, Songzhang Li, Yanbin Li, Zhaohong Li, Li Lin, Tiangang Luan, Jianbo Shi, Xiuqin Xie, Yongguang Yin, Ke Yuan
• Ngôn ngữ: eng
• Ký hiệu phân loại: 972.8202 *Central America
• Thông tin xuất bản: Netherlands : Journal of hazardous materials , 2025
• Bộ sưu tập: NCBI
• ID: 223036

Tóm tắt

Methylmercury (MeHg) is recognized as a deleterious neurotoxin with the traits of biomagnification through the food chain and accumulation in edible aquatic products. However, the in situ production of MeHg in aquaculture environments has not been well understood. Herein, the sediments were collected from aquaculture ponds with different rearing operations. Isotope-based tracer analysis showed that Hg methylation and MeHg demethylation rate constants in the aquaculture sediments were 0.001-0.022 d