YIC-IR  > 中科院海岸带环境过程与生态修复重点实验室
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
Source PublicationCHEMOSPHERE
ISSN0045-6535
Volume192Pages:152-160
Contribution Rank第2完成单位
AbstractSubmerged 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.
KeywordMultifractal Analysis X-ray Photoelectron Spectroscopy Functional Components Ammonia Nitrogen
DOI10.1016/j.chemosphere.2017.09.147
Funding OrganizationNational 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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Indexed BySCI
WOS KeywordDISSOLVED INORGANIC CARBON ; MULTIFRACTAL ANALYSIS ; VALLISNERIA-NATANS ; SPECIES RICHNESS ; SURFACE-ANALYSIS ; SHALLOW LAKES ; XPS ; SPECTROSCOPY ; STRESS ; PLANTS
SubtypeArticle
Language英语
WOS Research AreaEnvironmental Sciences & Ecology
WOS IDWOS:000418313900018
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Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/23553
Collection中科院海岸带环境过程与生态修复重点实验室
Corresponding AuthorZhang, Songhe; Zhang, Songhe(Hohai Univ, Coll Environm, Minist Educ, Key Lab Integrated Regulat & Resource Dev Shallow, Nanjing 210098, Jiangsu, Peoples R China)
Affiliation1.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
Recommended Citation
GB/T 7714
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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