Linking DOM characteristics to microbial community: The potential role of DOM mineralization for arsenic release in shallow groundwater

溶解有机碳 环境化学 矿化(土壤科学) 化学 地下水 微生物种群生物学 微生物联合体 异养 氮气 生物 细菌 有机化学 微生物 地质学 遗传学 岩土工程
作者
Yanhong Wang,Xuege Tian,Tenglong Song,Zhou Jiang,Guanglong Zhang,Chen He,Ping Li
出处
期刊:Journal of Hazardous Materials [Elsevier BV]
卷期号:454: 131566-131566 被引量:8
标识
DOI:10.1016/j.jhazmat.2023.131566
摘要

Dissolved organic matter (DOM) play critical roles in arsenic (As) biotransformation in groundwater, but its compositional characteristics and interactions with indigenous microbial communities remain unclear. In this study, DOM signatures coupled with taxonomy and functions of microbial community were characterized in As-enriched groundwater by excitation-emission matrix, Fourier transform ion cyclotron resonance mass spectrometry and metagenomic sequencing. Results showed that As concentrations were significantly positively correlated with DOM humification (r = 0.707, p < 0.01) and the most dominant humic acid-like DOM components (r = 0.789, p < 0.01). Molecular characterization further demonstrated high DOM oxidation degree, with the prevalence of unsaturated oxygen-low aromatics, nitrogen (N1/N2)-containing compounds and unique CHO molecules in high As groundwater. These DOM properties were consistent with microbial composition and functional potentials. Both taxonomy and binning analyses demonstrated the dominance of Pseudomonas stutzeri, Microbacterium and Sphingobium xenophagum in As-enriched groundwater which possessed abundant As-reducing gene, with organic carbon degrading genes capable of labile to recalcitrant compounds degradation and high potentials of organic nitrogen mineralization to generate ammonium. Besides, most assembled bins in high As groundwater presented strong fermentation potentials which could facilitate carbon utilization by heterotrophic microbes. This study provides better insight into the potential role of DOM mineralization for As release in groundwater system.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
1秒前
高贵梦露发布了新的文献求助10
3秒前
5秒前
6秒前
GL发布了新的文献求助10
6秒前
乐乐应助如意枫叶采纳,获得10
6秒前
7秒前
史念薇发布了新的文献求助10
7秒前
xixi完成签到 ,获得积分10
7秒前
9秒前
青野发布了新的文献求助10
11秒前
14秒前
15秒前
高贵梦露完成签到,获得积分10
15秒前
17秒前
19秒前
量子星尘发布了新的文献求助10
20秒前
如意枫叶发布了新的文献求助10
21秒前
21秒前
22秒前
22秒前
24秒前
25秒前
26秒前
赘婿应助GL采纳,获得10
26秒前
27秒前
27秒前
Archer宇完成签到,获得积分10
27秒前
狸花小喵发布了新的文献求助10
29秒前
科研废物完成签到 ,获得积分10
29秒前
30秒前
31秒前
32秒前
33秒前
35秒前
36秒前
潇湘雪月发布了新的文献求助10
37秒前
37秒前
38秒前
ding应助咩咩羊采纳,获得10
38秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
‘Unruly’ Children: Historical Fieldnotes and Learning Morality in a Taiwan Village (New Departures in Anthropology) 400
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 350
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3989263
求助须知:如何正确求助?哪些是违规求助? 3531418
关于积分的说明 11253814
捐赠科研通 3270066
什么是DOI,文献DOI怎么找? 1804884
邀请新用户注册赠送积分活动 882084
科研通“疑难数据库(出版商)”最低求助积分说明 809136