Journal ArticleDOI
Microbial community succession in soils under long-term heavy metal stress from community diversity-structure to KEGG function pathways.
TLDR
In this paper , the authors used a metagenomics approach to comprehensively investigate the evolutionary changes in microbial diversity, structure, and function under different heavy metal concentration stress in soils surrounding gold tailings.Abstract:
Currently, understanding the structure and function of the microbial community is the key step in artificially constructing microbial communities to control soil heavy metal pollution. Abundant/rare microbial communities play different roles in different levels of concentrations. However, the correlation between heavy metals and rare/abundant subgroups is poorly understood. In this study, we used a metagenomics approach to comprehensively investigate the evolutionary changes in microbial diversity, structure, and function under different heavy metal concentration stress in soils surrounding gold tailings. The results show that the main pollutants were Pb, As, and Zn. Indigenous microorganisms have different responses to heavy metal concentrations. Bacteria are the main components of indigenous microorganisms, mainly including Actinobacteria, Proteobacteria, Chloroflexi, and Acidobacteria. With the increase of heavy metal pollution, the relative abundance of Proteobacteria increased, and that of Actinobacteria decreased. Archaea was significantly inhibited by heavy metal stress and was more sensitive to heavy metal concentration. The response of fungi to heavy metal concentration was not obvious. The results of KEGG pathways showed that carbon fixation was inhibited with increasing heavy metal concentrations, while nitrogen metabolism was in contrast. Abundant subcommunity had a greater correlation mainly with metal resistance mechanisms, and rare subcommunity plays a key role for soil nutrient cycling such as N, S cycling in soils contaminated. Overall, this study provides a comprehensive analysis of the effects of heavy metal stress at different concentrations on microorganisms in farmland around gold tailings and reveals the relationship between heavy metals on KEGG pathways. read more
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Journal ArticleDOI
Effect of potentially toxic elements on soil multifunctionality at a lead smelting site.
Wenshun Ke,Chuxuan Li,Fengrong Zhu,Xinghua Luo,Jingpei Feng,Xue Li,Yifan Jiang,Chuan Wu,William Hartley,Shengguo Xue +9 more
TL;DR: In this article , the authors investigated changes in soil multifunctionality and the correlation between soil diversity and soil contamination under the influence of potentially toxic elements (PTEs) and found that PTEs limit soil diversity by affecting soil microbial communities and functionality.
Journal ArticleDOI
Influence of DOM and microbes on Fe biogeochemistry at a riverbank filtration site.
TL;DR: In this paper , the essential role of microbial mediation during the interactions between primary Fe minerals in the RBF system and dissolved organic matter (DOM) in river water based on lab-scale experiments was verified.
Journal ArticleDOI
Influence of DOM and microbes on Fe biogeochemistry at a riverbank filtration site
TL;DR: In this article , the essential role of microbial mediation during the interactions between primary Fe minerals in the RBF system and dissolved organic matter (DOM) in river water based on lab-scale experiments was verified.
Journal ArticleDOI
Heavy metals reshaping the structure and function of phylloplane bacterial community of native plant Tamarix ramosissima from Pb/Cd/Cu/Zn smelting regions.
TL;DR: In this article , the authors investigated the response of Tamarix ramosissima, a phylloplane bacterial community to heavy metal, and the effect of the process on host growth in situ.
Journal ArticleDOI
Structural and functional characteristics of soil microbial communities in response to different ecological risk levels of heavy metals
TL;DR: In this article , the potential ecological risk index (RI) is the most commonly used method to assess heavy metals contamination in soils, whereas little is known about the responses of the microbial community structures and functions to HMs at different RI levels.
References
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Where less may be more: How the rare biosphere pulls ecosystems strings
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Journal ArticleDOI
Response of soil microbial communities and microbial interactions to long-term heavy metal contamination
Xiaoqi Li,Delong Meng,Juan Li,Huaqun Yin,Hongwei Liu,Xueduan Liu,Cheng Cheng,Yunhua Xiao,Zhenghua Liu,Mingli Yan +9 more
TL;DR: The present study indicated that the microbial community composition, as well as network interactions was shift to strengthen adaptability of microorganisms to heavy metal contamination, and archaea were resistant to heavyMetal contamination and may contribute to the adaption to heavy metals.
Journal ArticleDOI
Understanding the variation of microbial community in heavy metals contaminated soil using high throughput sequencing.
Honghong Guo,Mubasher Nasir,Mubasher Nasir,Jialong Lv,Jialong Lv,Yunchao Dai,Yunchao Dai,Jiakai Gao,Jiakai Gao +8 more
TL;DR: The results showed that microbial community structure varied among sites, and it was significantly affected by soil environmental factors such as pH, soil organic matter (SOM), Cd, Pb and Zn.
Journal ArticleDOI
Impacts of biochar application on upland agriculture: A review.
Kumuduni Niroshika Palansooriya,Yong Sik Ok,Yasser M. Awad,Sang Soo Lee,Jwa Kyung Sung,Agamemnon Koutsospyros,Deok Hyun Moon +6 more
TL;DR: Biochar can assist in controlling unsuitable soil acidity/alkalinity/salinity and remediating a contaminated soil while increasing the retention of soil organic carbon, water content, and thereby high crop yield and thereby substantially increasing crop yield.
Journal ArticleDOI
Differentiation strategies of soil rare and abundant microbial taxa in response to changing climatic regimes.
Yuting Liang,Xian Xiao,Erin E. Nuccio,Mengting Yuan,Na Zhang,Kai Xue,Kai Xue,Frederick M. Cohan,Jizhong Zhou,Jizhong Zhou,Bo Sun +10 more
TL;DR: The study indicates that the taxonomically and functionally diverse rare biosphere has the potential to increase functional redundancy and enhance the ability of soil communities to counteract environmental disturbances.