Response of biofilms-leaves of two submerged macrophytes to high ammonium
Gong, Lixue1; Zhang, Songhe1; Chen, Deqiang1; Liu, Kaihui1; Lu, Jian2; Zhang, Songhe(Hohai Univ, Coll Environm, Minist Educ, Key Lab Integrated Regulat & Resource Dev Shallow, Nanjing 210098, Jiangsu, Peoples R China)
2018-02-01
发表期刊CHEMOSPHERE
ISSN0045-6535
卷号192页码:152-160
产权排序第2完成单位
摘要Submerged macrophytes can provide attached surface for biofilms (known as periphyton) growth. In the present study, the alterations in biofilms formation, and chemical compositions and physiological responses were investigated on leaves of Vallisneria asiatica and Hydrilla verticillata exposed to 0.1 mg L-1 (control) or with 10 mg L-1 NH4+-N for 13 days. Results from physiological and biochemical indices (content of H2O2, malondialdehyde, total chlorophyll and activity of superoxide dismutase, catalase and peroxidase) showed that high ammonium caused oxidative damage to leaves of two species of plant. Multifractal analysis (based on scanning electron microscope images) showed that for the same plant, the values of width Delta alpha (Delta alpha = alpha(max)-alpha(min)) of the f(alpha) and Delta f(Delta f = f(alpha(min))-f(alpha(max))) were smaller on leaves surface of two species of plant treated with 10 mg L-1 NH4+-N for 13 days than their controls, suggesting high ammonium treatments reduced morphological heterogeneity of leaf surface and enhanced area of the colony-like biofilms. X-ray photoelectron spectroscopy analysis showed that C, O, N and P were dominant elements on leaves surface of two species of plant and ammonium application increased the percentage of C but decreased that of O. High ammonium increased Cl (C-C or C-H) percentage but decreased C2 (C-O) and C3 (O-C-O or C=O) percentage on leaves surface of two species of plant, indicating that ammonium stress changed the surface chemical states and thus might reduce the capacity of leaves to adsorb nutrients from water column. Our results provided useful information to understand ammonium induced toxicity to submerged macrophytes. (C) 2017 Elsevier Ltd. All rights reserved.
关键词Multifractal Analysis X-ray Photoelectron Spectroscopy Functional Components Ammonia Nitrogen
DOI10.1016/j.chemosphere.2017.09.147
项目资助者National Natural Science Foundation of China(51379063, 51579075) ; Natural Science Foundation of Jiangsu Province(BK20160087) ; National Water Pollution Control and Treatment Science and Technology Major Project(2018ZX07208-4) ; Fundamental Research Funds for the Central Universities(2016B06714) ; Priority Academic Program Development of Jiangsu Higher Education Institutions
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收录类别SCI
关键词[WOS]DISSOLVED INORGANIC CARBON ; MULTIFRACTAL ANALYSIS ; VALLISNERIA-NATANS ; SPECIES RICHNESS ; SURFACE-ANALYSIS ; SHALLOW LAKES ; XPS ; SPECTROSCOPY ; STRESS ; PLANTS
文章类型Article
语种英语
WOS研究方向Environmental Sciences & Ecology
WOS记录号WOS:000418313900018
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cn/handle/133337/23553
专题中科院海岸带环境过程与生态修复重点实验室
通讯作者Zhang, Songhe; Zhang, Songhe(Hohai Univ, Coll Environm, Minist Educ, Key Lab Integrated Regulat & Resource Dev Shallow, Nanjing 210098, Jiangsu, Peoples R China)
作者单位1.Hohai Univ, Coll Environm, Minist Educ, Key Lab Integrated Regulat & Resource Dev Shallow, Nanjing 210098, Jiangsu, Peoples R China
2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China
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Gong, Lixue,Zhang, Songhe,Chen, Deqiang,et al. Response of biofilms-leaves of two submerged macrophytes to high ammonium[J]. CHEMOSPHERE,2018,192:152-160.
APA Gong, Lixue,Zhang, Songhe,Chen, Deqiang,Liu, Kaihui,Lu, Jian,&Zhang, Songhe.(2018).Response of biofilms-leaves of two submerged macrophytes to high ammonium.CHEMOSPHERE,192,152-160.
MLA Gong, Lixue,et al."Response of biofilms-leaves of two submerged macrophytes to high ammonium".CHEMOSPHERE 192(2018):152-160.
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