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HERO ID
4154395
Reference Type
Journal Article
Title
Nitrogen species coupled with transpiration enhance Fe plaque assisted aquatic uranium removal via rhizofiltration of Phragmites australis Trin ex Steud
Author(s)
Wang, W; Dudel, EG
Year
2018
Is Peer Reviewed?
Yes
Journal
Journal of Environmental Radioactivity
ISSN:
0265-931X
EISSN:
1879-1700
Volume
181
Page Numbers
138-146
Language
English
PMID
29150188
DOI
10.1016/j.jenvrad.2017.11.011
Web of Science Id
WOS:000418980900016
Abstract
The influences of N species and transpiration on the Fe plaque (IP) formation and related aquatic U rhizofiltration had not revealed yet, especially when these factors were co-existed. It was evaluated in a mesocosm experiment in the condition of respective ammonium (NH4+)/nitrate (NO3-) cultivation of Phragmites australis Trin ex Steud. coupled with different transpiration rates (TRs). The results suggested that the enhanced transpiration of P. australis improved the aquatic U rhizofiltration in both NO3- and NH4+ rich milieus. However, the NO3- dependent oxidizing milieu restricted aquatic U uptake by the root of P. australis (up to 47.6 ± 1.8 mg kg-1 under high TR) via IP assisted rhizofiltration. The high aquatic U availability and limited IP formation in NO3- rich milieu benefited the U retention within root tissue. On the contrary, the aquatic U rhizofiltration (up to 62.1 ± 1.0 mg kg-1 under high TR) was enhanced under NH4+ dependent reductive milieu. It was mainly contributed by U retention within IP. The area related U accumulation in different N species cultured roots was enhanced but did not significantly different under higher TR condition. The result suggested that the supplied NH4+ coupled with enhanced transpiration was supposed to be more optimized option for IP assisted aquatic U rhizofiltration via P. australis.
Tags
IRIS
•
Nitrate/Nitrite
Broad LitSearch 2016/1/1 - 2017/12/5
Refs found by LitSearch but not ATSDR/IARC
PubMed
Refs found only by 2017 LitSearch or Citation Mapping
Ref Types 12/2017
All Others
LitSearch Update 2018/1/1 - 2022/8/17
PubMed
WoS
LitSearch Update 2016-2017
PubMed
•
Uranium
Uranium Literature Search Update 7/2018
WOS
Uranium Literature Search Update 4/2020
WOS
•
Uranium Toxicological Review
Date limited literature search 2011-2021
WOS
Pubmed
Scopus
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