利用整体微生物垫去除河口水中金属的新方法。

IF 4.1 3区 生物学 Q2 BIOCHEMISTRY & MOLECULAR BIOLOGY
Natalia Gabriela Morales Pontet, Carolina Fernández, Sandra Elizabeth Botté
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引用次数: 0

摘要

本研究解决了人们对河口滩涂中铬与微生物垫相互作用的了解有限的问题。目的是评估:(1) 微生物群在去除海水中的铬(III)方面的效率;(2) 微生物垫作为自然系统在去除铬方面的元素和矿物组成;(3) 金属对微囊底栖生物的影响;(4) 铬与微生物群中其他金属可能产生的相互作用。将微生物垫暴露于不同浓度(2-30 毫克/升)的铬(III)溶液中。进行了金属浓度、有机物含量、叶绿素 a 和藻红素浓度、硅藻和蓝藻丰度、SEM-EDS 和 XRD 等分析。大部分三价铬以氧化铬/氢氧化物的形式沉积在所有微生物垫成分的表面。由沉积物、残渣、EPS 和多种微生物群落组成的完整微生物垫具有显著的积累铬(III)能力,在溶液中的保留率超过 87%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Novel method of removing metals from estuarine water using whole microbial mats

Novel method of removing metals from estuarine water using whole microbial mats

Novel method of removing metals from estuarine water using whole microbial mats

This study addresses the limited understanding of chromium-microbial mat interactions in estuarine tidal flats. The aims were to evaluate (1) the efficiency of the microbial consortium in Cr(III) removal from seawater; (2) the elemental and mineralogical composition of the microbial mat as a natural system in the Cr removal, (3) the effects of metal on microphytobenthos, and (4) possible interactions of Cr with other metals present in the consortium. Microbial mats were exposed to Cr(III) solutions at different concentrations (2–30 mg Cr/L). Analysis such as metal concentration, organic matter content, chlorophyll a and phaeopigment concentrations, abundance of diatoms and cyanobacteria, SEM-EDS, and XRD were performed. Most of the Cr(III) was deposited, as chromium oxide/hydroxide, on the surface of all microbial mat components. The complete microbial mat, comprising sediments, detritus, EPS, and diverse microorganism communities, exhibited a remarkable capacity to accumulate Cr(III), retaining over 87% in the solution.

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来源期刊
Biometals
Biometals 生物-生化与分子生物学
CiteScore
5.90
自引率
8.60%
发文量
111
审稿时长
3 months
期刊介绍: BioMetals is the only established journal to feature the important role of metal ions in chemistry, biology, biochemistry, environmental science, and medicine. BioMetals is an international, multidisciplinary journal singularly devoted to the rapid publication of the fundamental advances of both basic and applied research in this field. BioMetals offers a forum for innovative research and clinical results on the structure and function of: - metal ions - metal chelates, - siderophores, - metal-containing proteins - biominerals in all biosystems. - BioMetals rapidly publishes original articles and reviews. BioMetals is a journal for metals researchers who practice in medicine, biochemistry, pharmacology, toxicology, microbiology, cell biology, chemistry, and plant physiology who are based academic, industrial and government laboratories.
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