Abstract：
:Shrub willows have demonstrated potential in many types of phytoremediation applications. Hydroponic culture was used to assess arsenic (As) tolerance and uptake by four shrub willow clones and to determine the effects of phosphate on As accumulation. After 4 weeks of growth in the absence of As, plants received one of four treatments: 0.25X Hoagland's minus P (-P), 0.25X Hoagland's minus P plus 100 microM arsenate (As100(-P)), 0.25X Hoagland's minus P plus 250 microM arsenate (As250(-P)), and 0.25X Hoagland's plus 250 IM arsenate (As250(+P)). Except for treatment As250(+P), phosphate was excluded due to its tendency to interfere with As uptake. After 3 weeks of treatment, plants were separated into root, leaf, and stem tissues. Biomass production and transpiration were used to quantify As tolerance. There was wide variation among clones in As tolerance and uptake. The presence of phosphate in solution alleviated the negative impacts of As on biomass and transpiration and also increased above ground As accumulation, suggesting that phosphate may play a role in reducing toxicity and enhancing As uptake by willow shrubs. These findings offer insight into As tolerance and uptake in Salix spp. and add to the growing body of evidence supporting the use of shrub willow for phytoremediation.
journal_name
Int J Phytoremediationjournal_title
International journal of phytoremediationauthors
Purdy JJ,Smart LBdoi
10.1080/15226510802115000subject
Has Abstractpub_date
2008-11-01 00:00:00pages
515-28issue
6eissn
1522-6514issn
1549-7879journal_volume
10pub_type
杂志文章abstract：:The uptake, transport, and accumulation of metals by plants are functions central to successful phytoextraction. This study investigates the uptake and translocation of arsenic from a contaminated sandy soil by a mature Chinese brake fern (Pteris vittata L.). An existing mathematical model for the coupled transport of...
journal_title：International journal of phytoremediation
pub_type： 杂志文章
doi：10.1080/16226510590915774
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journal_title：International journal of phytoremediation
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journal_title：International journal of phytoremediation
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journal_title：International journal of phytoremediation
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journal_title：International journal of phytoremediation
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journal_title：International journal of phytoremediation
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journal_title：International journal of phytoremediation
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journal_title：International journal of phytoremediation
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journal_title：International journal of phytoremediation
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journal_title：International journal of phytoremediation
pub_type： 杂志文章
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journal_title：International journal of phytoremediation
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journal_title：International journal of phytoremediation
pub_type： 杂志文章,评审
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journal_title：International journal of phytoremediation
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journal_title：International journal of phytoremediation
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journal_title：International journal of phytoremediation
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journal_title：International journal of phytoremediation
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journal_title：International journal of phytoremediation
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journal_title：International journal of phytoremediation
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