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Mechanisms of intestinal injury in polychaete Perinereis aibuhitensis caused by low-concentration fluorene pollution: Microbiome and metabonomic analyses.
Teng, Teng; Yang, Yuting; Li, Huihong; Song, Jie; Ren, Junning; Liu, Feng.
Afiliación
  • Teng T; Ocean College, Yantai Institute of China Agricultural University, Yantai 264670, Shandong, China.
  • Yang Y; Ocean College, Yantai Institute of China Agricultural University, Yantai 264670, Shandong, China.
  • Li H; Ocean College, Yantai Institute of China Agricultural University, Yantai 264670, Shandong, China.
  • Song J; Ocean College, Yantai Institute of China Agricultural University, Yantai 264670, Shandong, China.
  • Ren J; Ocean College, Yantai Institute of China Agricultural University, Yantai 264670, Shandong, China.
  • Liu F; Ocean College, Yantai Institute of China Agricultural University, Yantai 264670, Shandong, China. Electronic address: liufeng511@126.com.
J Hazard Mater ; 475: 134925, 2024 Aug 15.
Article en En | MEDLINE | ID: mdl-38889458
ABSTRACT
The polychaete Perinereis aibuhitensis is used for bioremediation; however, its ability to remove fluorene, a common environmental pollutant, from sediments remains unclear, especially at low concentrations of fluorene (10 mg/kg). In this study, we explored the mechanism of intestinal injury induced by low concentrations of fluorene and the reason intestinal injury is alleviated in high fluorene concentration groups (100 and 1000 mg/kg) using histology, ecological biomarkers, gut microbiome, and metabolic response analyses. The results show that P. aibuhitensis showed high tolerance to fluorene in sediments, with clearance rates ranging 25-50 %. However, the remediation effect at low fluorene concentrations (10 mg/kg) was poor. This is attributed to promoting the growth of harmful microorganisms such as Microvirga, which can cause metabolic disorders, intestinal flora imbalances, and the generation of harmful substances such as 2-hydroxyfluorene. These can result in severe intestinal injury in P. aibuhitensis, reducing its fluorene clearance rate. However, high fluorene concentrations (100 and 1000 mg/kg) may promote the growth of beneficial microorganisms such as Faecalibacterium, which can replace the dominant harmful microorganisms and improve metabolism to reverse the intestinal injury caused by low fluorene concentrations, ultimately restoring the fluorene-removal ability of P. aibuhitensis. This study demonstrates an effective method for evaluating the potential ecological risks of fluorene pollution in marine sediments and provides guidance for using P. aibuhitensis for remediation.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Poliquetos / Contaminantes Químicos del Agua / Metabolómica / Fluorenos / Microbioma Gastrointestinal / Intestinos Límite: Animals Idioma: En Revista: J Hazard Mater Asunto de la revista: SAUDE AMBIENTAL Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Países Bajos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Poliquetos / Contaminantes Químicos del Agua / Metabolómica / Fluorenos / Microbioma Gastrointestinal / Intestinos Límite: Animals Idioma: En Revista: J Hazard Mater Asunto de la revista: SAUDE AMBIENTAL Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Países Bajos