Document Detail


Uranium accumulation of crop plants enhanced by citric acid.
MedLine Citation:
PMID:  16237609     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Citric acid was applied to soil to enhance U accumulation in four crop plants. While the highest enhanced U accumulation of aboveground tissues (a.c. 2000 mg kg(-1) dry weight) occurred in the leaves of Indian mustard (Brassica juncea), the highest enhanced U accumulation of roots (a.c. 3500 mg kg(-1) dry weight) occurred in canola (Brassica napus var. napus). Uranium translocation among tissues of test plants is in the relation of roots>shoots congruent with leaves. The flowers of sunflower (Helianthus annuus) contained similar or higher U concentrations than those found in shoots, but concentrations in seeds are close to zero. In conclusion, Indian mustard is recommended as a potential species for phytoextraction for U-contaminated soil due to its high U accumulation of aboveground biomass (a.c. 2200 microg per plant). There is no evidence that two types of soils cause a significant difference of the enhanced U accumulation (p<0.05). Results, however, indicate that additional citric acid may result in downward U migration that may contaminate groundwater. Speciation of U that is taken up by plants is also discussed in the end.
Authors:
Peichun Chang; Kyoung-Woong Kim; Satoshi Yoshida; Soo-Young Kim
Related Documents :
23264519 - Herbivore induction of jasmonic acid and chemical defences reduce photosynthesis in nic...
11837419 - Natural uranium and thorium distributions in podzolized soils and native blueberry.
23747439 - Analysing biomass torrefaction supply chain costs.
22705589 - 24-epibrassinolide modulates growth, nodulation, antioxidant system, and osmolyte in to...
25112029 - Performance evaluation of a dual-flow recharge filter for improving groundwater quality.
11378929 - Radon (222rn) level variations on a regional scale: influence of the basement trace ele...
23017909 - Osmiox, a myo-inositol oxygenase gene, improves drought tolerance through scavenging of...
25402269 - Degradation and metabolism of tetrabromobisphenol a (tbbpa) in submerged soil and soil-...
23334019 - Hydrothermally carbonized plant materials: patterns of volatile organic compounds detec...
Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Environmental geochemistry and health     Volume:  27     ISSN:  0269-4042     ISO Abbreviation:  Environ Geochem Health     Publication Date:  2005 Sep 
Date Detail:
Created Date:  2005-10-20     Completed Date:  2006-07-21     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8903118     Medline TA:  Environ Geochem Health     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  529-38     Citation Subset:  IM    
Affiliation:
UNU and GIST Joint Programme on Science and Technology for Sustainability, International Environmental Research Center, Gwangju 500-712, South Korea.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Citric Acid / chemistry*
Crops, Agricultural / metabolism*
Environmental Pollution / prevention & control*
Korea
Mass Spectrometry
Soil / analysis*
Uranium / analysis*,  pharmacokinetics*
Chemical
Reg. No./Substance:
0/Soil; 7440-61-1/Uranium; 77-92-9/Citric Acid

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Endemic arsenosis caused by indoor combustion of high-as coal in Guizhou Province, P.R. China.
Next Document:  Variation of (222)Rn activity concentration in soil gas at a site in Sapporo, Japan.