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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1007/s10646-018-1967-8
|2 doi
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|a pubmed24n0957.xml
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|a (DE-627)NLM287386929
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|a (NLM)30099680
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
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|a Shi, Wanxia
|e verfasserin
|4 aut
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|a Dissimilatory arsenate-respiring prokaryotes catalyze the dissolution, reduction and release of arsenic from paddy soils into groundwater
|b implication for the effect of sulfate
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|c 2018
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 09.01.2019
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a The paddy soils in some areas in Jianghan Plain were severely contaminated by arsenic. However, little is known about the activity and diversity of the dissimilatory arsenate-respiring prokaryotes (DARPs) in the paddy soils, and the effects of sulfate on the microbial mobilization and release of arsenic from soils into solution. To address this issue, we collected arsenic-rich soils from the depths of 1.6 and 4.6 m in a paddy region in the Xiantao city, Hubei Province, China. Microcosm assays indicated that all of the soils have significant arsenate-respiring activities using lactate, pyruvate or acetate as the sole electron donor. Functional gene cloning and analysis suggest that there are diverse DARPs in the indigenous microbial communities of the soils. They efficiently promoted the mobilization, reduction and release of arsenic and iron from soils under anaerobic conditions. Remarkably, when sulfate was amended into the microcosms, the microorganisms-catalyzed reduction and release of arsenic and iron were significantly increased. We further found that sulfate significantly enhanced the arsenate-respiring reductase gene abundances in the soils. Taken together, a diversity of DARPs in the paddy soils significantly catalyzed the dissolution, reduction and release of arsenic and iron from insoluble phase into solution, and the presence of sulfate significantly increased the microbial reactions
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|a Journal Article
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|a Arsenic contamination
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|a Arsenic dissolution and release
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|a Dissimilatory arsenate-respiring prokaryote (DARP)
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|a Jianghan Plain
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|a Paddy soils
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|a Sulfurated fertilizer
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| 650 |
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|a Arsenates
|2 NLM
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|a Soil
|2 NLM
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|a Soil Pollutants
|2 NLM
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|a Sulfates
|2 NLM
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| 650 |
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|a Water Pollutants, Chemical
|2 NLM
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| 650 |
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|a Arsenate Reductases
|2 NLM
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| 650 |
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|a EC 1.20.-
|2 NLM
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| 650 |
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|a Arsenic
|2 NLM
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| 650 |
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|a N712M78A8G
|2 NLM
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| 700 |
1 |
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|a Wu, Weiwei
|e verfasserin
|4 aut
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1 |
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|a Zeng, Xian-Chun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Chen, Xiaoming
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhu, Xianbin
|e verfasserin
|4 aut
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| 700 |
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|a Cheng, Shenggao
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Ecotoxicology (London, England)
|d 1992
|g 27(2018), 8 vom: 12. Okt., Seite 1126-1136
|w (DE-627)NLM098212214
|x 1573-3017
|7 nnns
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| 773 |
1 |
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|g volume:27
|g year:2018
|g number:8
|g day:12
|g month:10
|g pages:1126-1136
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|u http://dx.doi.org/10.1007/s10646-018-1967-8
|3 Volltext
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