Metal(loid) speciation and transformation by aerobic methanotrophs.

Metal(loid) speciation and transformation by aerobic methanotrophs.
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好氧甲烷氧化菌对金属(样物质)的形成和转化。

DOI:
10.1186/s40168-021-01112-y
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发表时间:
2021-07-06
期刊:
影响因子:
15.5
通讯作者:
Kumaresan D
Kumaresan D
中科院分区:
生物学1区
文献类型:
--
作者:
Karthikeyan OP;Smith TJ;Dandare SU;Parwin KS;Singh H;Loh HX;Cunningham MR;Williams PN;Nichol T;Subramanian A;Ramasamy K;Kumaresan D

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制造业和资源行业是经济增长的主要驱动力,但环境成本巨大(例如工业废水和采矿后基质的排放)。来自废物流的污染物,无论是有机的还是无机的(例如重金属),都容易与其物理环境发生相互作用,这不仅影响生态系统的健康,而且影响当地社区的生计。与有机污染物不同,重金属或微量金属(例如铬、汞)是不可生物降解的,通过食物网相互作用进行生物积累,并且可能对生态系统健康产生长期影响。微生物提供各种生态系统服务,包括调节气候、净化地下水、通过使污染物解毒来恢复受污染场地。最近的研究强调了甲烷氧化菌的潜力,甲烷氧化菌是一组可以使用甲烷作为唯一碳源和能源的细菌,可以转化有毒金属(loids),如铬,汞和硒。在这篇综述中,我们综合了必需金属(如铜)对甲烷氧化菌活性的作用,吸收机制及其转化有毒重金属(loids)的潜力的最新进展。铬,硒和汞污染的制革,燃煤和手工采金,分别提出了案例研究,这是特殊的问题,在发展中国家的经济,我们建议可能是适合甲烷氧化菌修复。视频摘要在线版本包含补充材料,可通过10. 1186/s40168-021-01112-y获取。
Manufacturing and resource industries are the key drivers for economic growth with a huge environmental cost (e.g. discharge of industrial effluents and post-mining substrates). Pollutants from waste streams, either organic or inorganic (e.g. heavy metals), are prone to interact with their physical environment that not only affects the ecosystem health but also the livelihood of local communities. Unlike organic pollutants, heavy metals or trace metals (e.g. chromium, mercury) are non-biodegradable, bioaccumulate through food-web interactions and are likely to have a long-term impact on ecosystem health. Microorganisms provide varied ecosystem services including climate regulation, purification of groundwater, rehabilitation of contaminated sites by detoxifying pollutants. Recent studies have highlighted the potential of methanotrophs, a group of bacteria that can use methane as a sole carbon and energy source, to transform toxic metal (loids) such as chromium, mercury and selenium. In this review, we synthesise recent advances in the role of essential metals (e.g. copper) for methanotroph activity, uptake mechanisms alongside their potential to transform toxic heavy metal (loids). Case studies are presented on chromium, selenium and mercury pollution from the tanneries, coal burning and artisanal gold mining, respectively, which are particular problems in the developing economy that we propose may be suitable for remediation by methanotrophs. Video Abstract The online version contains supplementary material available at 10.1186/s40168-021-01112-y.
DOI: 10.1111/lam.13330
发表时间: 2020-06-18
影响因子: 2.4
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