globalchange  > 过去全球变化的重建
DOI: 10.1016/j.marpolbul.2018.03.020
Scopus记录号: 2-s2.0-85043580047
论文题名:
Salinity shifts in marine sediment: Importance of number of fluctuation rather than their intensities on bacterial denitrifying community
作者: Zaghmouri I.; Michotey V.D.; Armougom F.; Guasco S.; Bonin P.C.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2018
卷: 130
起始页码: 76
结束页码: 83
语种: 英语
英文关键词: Community shift ; Denitrification ; Microcosm ; Pseudomonas ; Resistance ; Salinity fluctuations
Scopus关键词: Bacteria ; Denitrification ; Electric resistance ; Submarine geology ; Bacterial community ; Coastal sediments ; Community shift ; Denitrification rate ; Microcosm ; Pseudomonas ; Salinity fluctuation ; Salinity variations ; Sediments ; article ; cladistics ; denitrification ; human ; microbial community ; microcosm ; nonhuman ; Pseudomonas ; salinity ; sediment ; Bacteria (microorganisms) ; Pseudomonas
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science ; Earth and Planetary Sciences: Oceanography ; Environmental Science: Pollution
英文摘要: The sensitivity of denitrifying community to salinity fluctuations was studied in microcosms filled with marine coastal sediments subjected to different salinity disturbances over time (sediment under frequent salinity changes vs sediment with “stable” salinity pattern). Upon short-term salinity shift, denitrification rate and denitrifiers abundance showed high resistance whatever the sediment origin is. Denitrifying community adapted to frequent salinity changes showed high resistance when salinity increases, with a dynamic nosZ relative expression level. Marine sediment denitrifying community, characterized by more stable pattern, was less resistant when salinity decreases. However, after two successive variations of salinity, it shifted toward the characteristic community of fluctuating conditions, with larger proportion of Pseudomonas-nosZ, exhibiting an increase of nosZ relative expression level. The impact of long-term salinity variation upon bacterial community was confirmed at ribosomal level with a higher percentage of Pseudomonas and lower proportion of nosZII clade genera. © 2018 Elsevier Ltd
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/88306
Appears in Collections:过去全球变化的重建
全球变化的国际研究计划

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作者单位: Aix Marseille Univ, Univ Toulon, CNRS, IRD, MIO UM 110, Mediterranean Institute of Oceanography, Marseille, France

Recommended Citation:
Zaghmouri I.,Michotey V.D.,Armougom F.,et al. Salinity shifts in marine sediment: Importance of number of fluctuation rather than their intensities on bacterial denitrifying community[J]. Marine Pollution Bulletin,2018-01-01,130
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