DOI: 10.1016/j.scitotenv.2019.135350
论文题名: Copper stress in flooded soil: Impact on enzyme activities, microbial community composition and diversity in the rhizosphere of Salix integra
作者: Cao Y. ; Ma C. ; Chen H. ; Chen G. ; White J.C. ; Xing B.
刊名: Science of the Total Environment
ISSN: 489697
出版年: 2020
卷: 704 语种: 英语
英文关键词: Enzyme activity
; Flooding
; Heavy metal
; Microflora
; Rhizosphere
Scopus关键词: Bacteria
; Bioremediation
; Climate change
; Copper
; Cultivation
; Enzyme activity
; Floods
; Fungi
; Heavy metals
; Oil well flooding
; RNA
; Soils
; Heavy metal polluted soils
; Heavy metal pollution
; Internal transcribed spacers
; Microbial communities
; Microbial community composition
; Microflora
; Non-flooded conditions
; Rhizosphere
; Soil pollution
; beta fructofuranosidase
; catechol oxidase
; cellulase
; copper
; internal transcribed spacer
; iron
; peroxidase
; RNA 16S
; soil organic matter
; urease
; copper
; heavy metal
; RNA 16S
; copper
; deciduous tree
; enzyme activity
; flooding
; microbial community
; pollution effect
; rhizosphere
; shrub
; soil chemistry
; soil organic matter
; soil pollution
; species diversity
; species richness
; Acidobacteria
; Article
; Bacteroidetes
; Chloroflexi
; controlled study
; enzyme activity
; flooding
; fungal community
; gene
; ITS gene
; microbial community
; microbial diversity
; nonhuman
; Penicillium
; priority journal
; Proteobacteria
; rhizosphere
; soil acidity
; soil analysis
; soil microflora
; soil pollution
; species richness
; willow
; bacterium
; bioremediation
; flooding
; fungus
; microbiology
; microflora
; physiology
; plant
; plant root
; soil
; soil pollutant
; toxicity
; Bacteria (microorganisms)
; Fungi
; Salix integra
; Bacteria
; Biodegradation, Environmental
; Copper
; Floods
; Fungi
; Metals, Heavy
; Microbiota
; Plant Roots
; Plants
; Rhizosphere
; RNA, Ribosomal, 16S
; Salix
; Soil
; Soil Microbiology
; Soil Pollutants
英文摘要: Climate change has increased flooding frequency, making the heavy metal polluted areas more vulnerable, and led to increased global land degradation. Information about the alteration of soil microbiota under heavy metal pollution and flooding is still rather limited. Fast-growing trees are candidates for phytoremediation of heavy metal polluted soils. Therefore, the impact of Cu pollution on microbiota in soil used for cultivating Salix integra Thunb. was investigated with and without flooding for 60 d. Bacterial and fungal communities were accessed via partial 16S rRNA (V3–V4) and internal transcribed spacer (ITS) genes. The activity of invertase, urease and cellulase were markedly decreased by 28.5–59%, 55.0–76.7% and 17.3–34.1%, respectively, with increasing Cu levels. Flooding significantly increased the activity of polyphenol oxidase and peroxidase by 56.3% and 41.4% at the highest Cu level compared to its respective non-flooded condition. High Cu concentration significantly decreased the richness and diversity of the bacterial community, and fungi were more sensitive than bacteria under flooding conditions. Redundancy analysis suggests that Cu, Fe and soil organic matter are the key determinants affecting the composition of microbial communities. Our findings provide new insight into the responses of soil microbes to Cu-contamination and contribute to our understanding of metal toxicity in soil-woody plant systems under flooded conditions. © 2019 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/159231
Appears in Collections: 气候变化与战略
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作者单位: Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, Zhejiang 311400, China; Department of Analytical Chemistry, The Connecticut Agricultural Experiment Station, New Haven, CT 06504, United States; Hunan Commodities Quality Supervision and Inspection Institute, Changsha, 410007, China; Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA 01003, United States
Recommended Citation:
Cao Y.,Ma C.,Chen H.,et al. Copper stress in flooded soil: Impact on enzyme activities, microbial community composition and diversity in the rhizosphere of Salix integra[J]. Science of the Total Environment,2020-01-01,704