Ecology-types determine physicochemical properties and microbial communities of sediments obtained along the Songhua River

Wang, Zhigang; Su, Yunpeng; Zhang, Ying; Guo, Huosheng; Meng, Dongfang; Wang, Yang

doi:10.1016/j.bse.2016.04.008

Cited by 10 publications

(1 citation statement)

References 18 publications

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“…Bacteria form the majority of sediment biomass and are well suited to a sedimentary environment as their size, metabolic versatility, and their collectively diverse nutrient and redox capabilities allow them to flourish in equally Table 2 Variation of microorganism biomass with sediment depths and percentage decrease from surface adapted from (Bhattarai et al 2015;Fierer et al 2003) Stratified layers of sediments accumulated over a reasonably long period of time, which can be cut in a series of successively receding flat surfaces ( diverse environments (Nealson 1997). Numerous conditions affect the presence and quantity of microbial communities (including those species with antimicrobial resistant genes (ARGs) present), and the knowledge of expected key community characteristics can be linked to their responses to physicochemical properties (e.g., conductivity (EC), pH and redox), nutritional quality (e.g., total nitrogen, phosphorus, carbon and minerals), source of carbon-including organic matter (Wang et al 2016)-and pollutant conditions (including PTE and PAH content) of sediments (Fig. 1).…”

Section: Sediment Microbiomementioning

confidence: 99%

Can the legacy of industrial pollution influence antimicrobial resistance in estuarine sediments?

et al. 2018

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Antimicrobial resistance (AMR) represents a major global health threat, as well as a major hazard to sustainable economic development and national security. It remains, therefore, vital that current research aligns to policy development and implementation to alleviate a potential crisis. One must consider, for example, whether drivers of antibiotic resistance can be controlled in the future, or have they already accumulated in the past, whether from antibiotics and/or other pollutants? Unfortunately, industrial heritage and its pollution impact on the prevalence of environmental AMR have largely been ignored. Focussing on industrialised estuaries, we demonstrate that anthropogenic pollution inputs in addition to the natural diurnal environmental conditions can sufficiently create stressful conditions to the microbiome and thus promote selective pressures to shift the resistome (i.e., collection of resistance traits in the microbiological community). Unfortunately, the bacteria's survival mechanisms, via co-selective pressures, can affect their susceptibility to antibiotics. This review highlights the complexity of estuarine environments, using two key contaminant groups (metals/toxic elements and polyaromatic hydrocarbons), through which a variety of possible chemical and biological pollutant stressors can promote the emergence and dissemination of antimicrobial resistance. We find compelling divers to call on more focused research on historically disrupted ecosystems, in propagating AMR in the real world.

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