Study on the degradation of polycyclic aromatic hydrocarbons in the excrement of Marphysa sanguinea

血红藻粪便中多环芳烃的降解研究

• 批准号: 24750150
• 负责人: ONOZATO Mayu
• 金额: $ 0.83万
• 依托单位: Toho University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2012
• 资助国家: 日本
• 起止时间: 2012-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-24750150/
• 关键词: 多環芳香族炭化水素; 環形動物; 物質循環; 微生物分解; 環境分析; 干潟

We have found the two interesting phenomena; the excrement of Marphysa sanguinea collected immediately after the organism excreted on sediment contained considerable amounts of PAHs, and the PAHs concentration reduced to half in 2 h. The rapid PAHs reduction might be attributed to the microorganisms in the excrement. To verify the speculation, the microorganisms in the excrement were incubated in the lipid medium suspended with pyrene for about 2 months, and extraction and analyses of a metabolite of pyrene in the culture were performed. As a result, we revealed the presence of a substantial metabolite of pyrene.

结果表明，血囊泡在沉积物上排泄后立即收集的排泄物中含有大量的多环芳烃，且在2 h内多环芳烃的浓度降低了一半。多环芳烃的快速减少可能与粪便中的微生物有关。为了验证推测，将粪便中的微生物在悬浮有芘的脂质培养基中孵育约2个月，并进行培养物中芘代谢物的提取和分析。因此，我们揭示了大量的代谢产物的芘的存在。

项目成果

イワムシ糞中におけるピレンの分解挙動の解明

阐明毛毛虫粪便中芘的分解行为

• 发表时间: 2014
• 作者: 小野里磨優;吉村佐和子;西垣敦子
• 通讯作者: 西垣敦子