中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
The physiological response of Arundo donax and characteristics of anodic bacterial community in BE-CW systems: Effects of the applied voltage

文献类型:期刊论文

作者Xiao, Enrong1; Zhou, Yin1,3; Xu, Dan2; Lu, Rui1,3; Chen, Yuhua1,3; Zhou, Qiaohong1; Wu, Zhenbin1
刊名CHEMICAL ENGINEERING JOURNAL
出版日期2020-01-15
卷号380期号:1页码:12
ISSN号1385-8947
关键词Arundo donax Constructed wetland Bioelectrochemical Physiological response Anodic bacterial community Applied voltage
DOI10.1016/j.cej.2019.122604
英文摘要

The performance of bioelectrochemically assisted constructed wetland systems planted with Arundo donax were evaluated at applied voltages of 1, 2, 3 and 5 V. The RGR and Proline (Pro) results implied a positive response at the proper applied voltage. In the 3-V group, the RGR sharply climbed to a maximum over two stages, and the Pro reached a higher level of 256.25 mu g/g at the end of the first stage without an additional organic carbon source. This result indicated that A. donax was attempting to adapt the 3-V stress via physiological self-regulation and the growth was nearly unaffected. However, in the 5-V group, the great increase in Pro and withering of the aboveground A. donax showed that the voltage stress had become lethal and the plant was not able to endure it through physiological regulation. In addition, Anodic microbial community compositions accumulating on graphite felts were analyzed via high-throughput sequencing. Results showed that there were two clear clusters at different applied voltages. One cluster was assembled from the anodic region of the 0-V and 1-V groups, and the other was collected from the 2-V and 3-V samples. At the phylum level, Proteobacteria, Firmicutes and Bacteroidetes were the most common phyla among the samples. However, at the genus level, the dominant genera varied with the applied voltage. The relative abundance of Desulfovibrio increased with increased applied voltage. The highest total nitrogen removal rate in the 2-V group was closely related to the high abundance of the Acinetobacter genus. Moreover, Exiguobacterium became dominant only in the 5-V sample, suggesting that this genus strongly depended on the interactive environment of exudes from A. donax and applied voltage.

WOS关键词MICROBIAL FUEL-CELL ; CONSTRUCTED WETLAND SYSTEM ; AUTOTROPHIC DENITRIFICATION ; ELECTROCHEMICAL SYSTEMS ; ELECTRICITY PRODUCTION ; NITROGEN REMOVAL ; FRESH-WATER ; PERFORMANCE ; DIVERSITY ; BIOFILM
WOS研究方向Engineering
语种英语
出版者ELSEVIER SCIENCE SA
WOS记录号WOS:000494815600148
源URL[http://ir.ihb.ac.cn/handle/342005/35390]  
专题水生生物研究所_水环境工程研究中心_期刊论文
通讯作者Xiao, Enrong
作者单位1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China
2.East China Univ Technol, Sch Water Resources & Environm Engn, Nanchang 330013, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714
Xiao, Enrong,Zhou, Yin,Xu, Dan,et al. The physiological response of Arundo donax and characteristics of anodic bacterial community in BE-CW systems: Effects of the applied voltage[J]. CHEMICAL ENGINEERING JOURNAL,2020,380(1):12.
APA Xiao, Enrong.,Zhou, Yin.,Xu, Dan.,Lu, Rui.,Chen, Yuhua.,...&Wu, Zhenbin.(2020).The physiological response of Arundo donax and characteristics of anodic bacterial community in BE-CW systems: Effects of the applied voltage.CHEMICAL ENGINEERING JOURNAL,380(1),12.
MLA Xiao, Enrong,et al."The physiological response of Arundo donax and characteristics of anodic bacterial community in BE-CW systems: Effects of the applied voltage".CHEMICAL ENGINEERING JOURNAL 380.1(2020):12.

入库方式: OAI收割

来源:水生生物研究所

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