Biodegradation of 17β-estradiol by bacteria isolated from deep sea sediments in aerobic and anaerobic media

被引：43

作者：

Fernandez, Lucia ^{[1
,2
,3
,4
,5
]}

Louvado, Antonio ^{[1
,2
]}

Esteves, Valdemar I. ^{[3
,4
]}

Gomes, Newton C. M. ^{[1
,2
]}

Almeida, Adelaide ^{[1
,2
]}

Cunha, Angela ^{[1
,2
]}

机构：

[1] Univ Aveiro, Dept Biol, P-3810193 Aveiro, Portugal

[2] Univ Aveiro, Ctr Environm & Marine Studies CESAM, P-3810193 Aveiro, Portugal

[3] Univ Aveiro, Dept Chem, P-3810193 Aveiro, Portugal

[4] Univ Aveiro, CESAM, P-3810193 Aveiro, Portugal

[5] Univ Aveiro, Dept Chem & Organ Chem, Nat & Agrofood Prod QOPNA, P-3810193 Aveiro, Portugal

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2017年 / 323卷

关键词：

Endocrine disrupting compounds; 17; beta-Estradiol; Estrone; Biodegradation; Deep sea; WASTE-WATER TREATMENT; ESTROGEN-DEGRADING BACTERIA; CHAIN FATTY-ACIDS; ACTIVATED-SLUDGE; ADVANCED OXIDATION; STEROID ESTROGENS; SP-NOV; DEGRADATION; REMOVAL; 17-ALPHA-ETHINYLESTRADIOL;

D O I：

10.1016/j.jhazmat.2016.05.029

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Endocrine disrupting compounds (EDCs) are considered as high research priority being a source of potential adverse ecological health effects in environmental waters. 17 beta-Estradiol (E2), a recalcitrant natural estrogen, is typically encountered in wastewater treatment plants (WWTPs) at levels ranging 10-30 ng L-1 in the influent flow and 1-3 ng L-1 in the effluent flow. The exposure to even extremely low concentrations of E2 may interfere with the normal function of the endocrine system of organisms. In this study, five bacteria isolated from enrichment cultures of sediments of mud volcanoes of the Gulf of Cadiz (Moroccan-Iberian margin) were identified as aerobic E2 biodegraders, which produce low amounts of biotransformed estrone (El). Analysis of 16S rDNA gene sequences identified three of them as VirgibacilIns halotolerans, Bacillus flexus and Bacillus licheniformis. Among the set of strains, Bacillus licheniformis showed also ability to biodegrade E2 under anaerobic conditions. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：359 / 366

页数：8

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