Phytoextraction and Accumulation of Boron and Selenium by Poplar (Populus) Hybrid Clones

Bañuelos, Gary S.; Shannon, Michael C.; Ajwa, Husein A.; Draper, John; Jordahl, James L.; Licht, Jeff

doi:10.1080/15226519908500006

Cited by 64 publications

(32 citation statements)

References 30 publications

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“…However, clone 94003 did perform well for some elements (Table 5), which corroborates our assertion of clone-specific phytoremediation and the need for proper genotype selection. The elevated concentration of elements in the plant tissues illustrated the effectiveness of the phytoremediation system (Bañuelos et al, 1999;Greger and Landberg, 1999;Sander and Ericsson, 1998). However, in some cases, the relative uptake of elements was similar regardless of the irrigation treatment.…”

Section: Discussionmentioning

confidence: 89%

“…Thus, there is a need for careful selection of clones within genomic groups, given the genetic variability within the genera Populus and Salix (Stettler, Bradshaw, and Zsuffa, 1992;Zalesny et al, 2005a;2005b). Matching genotypes to specific elements may contribute to enhanced efficiency and productivity of the system (Bañuelos et al, 1999;Perttu and Kowalik, 1997). For example, Greger and Landberg (2001) and Landberg and Greger (1994) selected specific Salix genotypes for the phytoextraction and accumulation of Cd (cadmium) in the shoots that were more effective than S. viminalis L. "78183" (osier willow) tested by Klang-Westin and Eriksson (2003) and Sander and Ericsson (1998).…”

Section: Discussionmentioning

confidence: 98%

“…Likewise, these genera have been used for hydraulic control to mitigate the migration of contaminants (Ferro et al, 2001;Vose et al, 2000; and for riparian buffer strips because they are able to remediate surface and subsurface contaminants (McLinn et al, 2001;Perttu, 1993;Perttu and Kowalik, 1997). The efficacy of trees generally and Populus/Salix specifically for phytoremediation is verified because they extract and capture (phytoextraction, rhizofiltration), extract and release (phytovolatilization), degrade (phytodegradation, rhizodegradation), or confine (phytostabilization, phytoaccumulation) the contaminants (Bañuelos et al, 1999;Sander and Ericsson, 1998;Schnoor et al, 1995). Although organic compounds can be degraded/mineralized, inorganic contaminants must be removed or converted into inert forms (Cunningham and Ow, 1996).…”

Section: Introductionmentioning

confidence: 98%

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Evaluation ofPopulusandSalixContinuously Irrigated with Landfill Leachate I. Genotype-Specific Elemental Phytoremediation

Zalesny

Bauer

2007

International Journal of Phytoremediation

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There is a need for the identification and selection of specific tree genotypes that can sequester elements from contaminated soils, with elevated rates of uptake. We irrigated Populus (DN17, DN182, DN34, NM2, NM6) and Salix (94003, 94012, S287, S566, SX61) genotypes planted in large soil-filled containers with landfill leachate or municipal water and tested for differences in inorganic element concentrations (P, K, Ca, Mg, S, Zn, B, Mn, Fe, Cu, Al, Na, and Cl) in the leaves, stems, and roots. Trees were irrigated with leachate or water during the final 12 wk of the 18-wk study. Genotype-specific uptake existed. For genera, tissue concentrations exhibited four responses. First, Populus had the greatest uptake of P, K, S, Cu, and Cl. Second, Salix exhibited the greatest uptake of Zn, B, Fe, and Al. Third, Salix had greater concentrations of Ca and Mg in leaves, while Populus had greater concentrations in stems and roots. Fourth, Populus had greater concentrations of Mn and Na in leaves and stems, while Salix had greater concentrations in roots. Populus deltoides x P. nigra clones exhibited better overall phytoremediation than the P. nigra x P. maximowiczii genotypes tested. Phytoremediation for S. purpurea clones 94003 and 94012 was generally less than for other Salix genotypes. Overall, concentrations of elements in the leaves, stems, and roots corroborated those in the plant-sciences literature. Uptake was dependent upon the specific genotype for most elements. Our results corroborated the need for further testing and selecting of specific clones for various phytoremediation needs, while providing a baseline for future researchers developing additional studies and resource managers conducting on-site remediation.

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Section: Discussionmentioning

confidence: 89%

Section: Discussionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 98%

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Evaluation ofPopulusandSalixContinuously Irrigated with Landfill Leachate I. Genotype-Specific Elemental Phytoremediation

Zalesny

Bauer

2007

International Journal of Phytoremediation

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“…Additionally, Shannon et al [34] and Bañuelos et al [35] evaluated the impacts of saline and B irrigation on eight hybrid poplar clones belonging to three genomic groups (P. deltoides × P. nigra 'DN34', 'OP367', 'PC1'; P. trichocarpa × P. deltoides '50194', '50197', '1529', '49177'; P. trichocarpa × P. nigra 'D01') that were tested for salt tolerance and uptake of B and Cl in sand culture studies. After hardwood cuttings were planted and established under non-saline conditions, young saplings were treated with artificial wastewaters containing different levels of salts, B, and selenium (Se).…”

Section: Salts and Salinitymentioning

confidence: 96%

Environmental Technologies of Woody Crop Production Systems

et al. 2016

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Soil erosion, loss of productivity potential, biodiversity loss, water shortage, and soil and water pollution are ongoing processes that decrease or degrade provisioning (e.g., biomass, freshwater) and regulating (e.g., carbon sequestration, soil quality) ecosystem services. Therefore, developing environmental technologies that maximize these services is essential for the continued support of rural and urban populations. Genotype selection is a key component of these technologies, and characteristics of the species used in short rotation woody biomass systems, as well as the silvicultural techniques developed for short rotation woody crops are readily adapted to environmental applications. Here, we describe the development of such woody crop production systems for the advancement of environmental technologies including phytoremediation, urban afforestation, forest restoration, and mine reclamation. The primary goal of these collective efforts is to develop systems and tools that can help to mitigate ecological degradation and thereby sustain healthy ecosystems across the rural to urban continuum. Abbreviations B B o r o n C C a r b o n Cl Chloride Electronic supplementary material The online version of this article (

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“…Breeding and selecting Populus and Salix with traits suitable for phytoremediation is an ongoing concept in need of continual investigation (Bañuelos et al, 1999;Landberg and Greger, 1996;Perttu and Kowalik, 1997;Zalesny et al, 2005c). In the current study, from a breeding and genetics standpoint, there were three important genotypic responses.…”

Section: Elements In Soilsmentioning

confidence: 99%

Evaluation ofPopulusandSalixContinuously Irrigated with Landfill Leachate II. Soils and Early Tree Development

Zalesny

Bauer

2007

International Journal of Phytoremediation

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Soil contaminant levels and early tree growth data are helpful for assessing phytoremediation systems. Populus (DN17, DN182, DN34, NM2, and NM6) and Salix (94003, 94012, S287, S566, and SX61) genotypes were irrigated with landfill leachate or municipal water and tested for differences in 1) element concentrations (P, K, Ca, Mg, S, Zn, B, Mn, Fe, Cu, Al, and Na) of a topsoil layer and a layer of sand in tanks with a cover crop of trees or no trees and 2) height, diameter, volume, and dry mass of leaves, stems, and roots. Trees were irrigated with leachate or water during the final 12 wk of the 18-wk study. Differences in most soil element concentrations were negligible (P > 0.05) for irrigation treatments and cover main effects. Phosphorous, K, Mg, S, Zn, Mn, Fe, and Al concentrations were greater in topsoil than sand (P = 0.0011 for Mg; P < 0.0001 for others). There was broad variation between genera and among clones for all growth traits. The treatment × clone interaction governed height, volume, and root dry mass, with (94012, SX61), (NM2, S566, SX61), and (S287, S566) exhibiting the greatest levels, respectively, following leachate application. Given the broad amount of variability among and within these genera, there is great potential for the identification and selection of specific genotypes with a combination of elevated phytoremediation capabilities and tree yield. From a practical standpoint, these results may be used as a baseline for the development of future remediation systems.

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Phytoextraction and Accumulation of Boron and Selenium by Poplar (Populus) Hybrid Clones

Cited by 64 publications

References 30 publications

Evaluation ofPopulusandSalixContinuously Irrigated with Landfill Leachate I. Genotype-Specific Elemental Phytoremediation

Evaluation ofPopulusandSalixContinuously Irrigated with Landfill Leachate I. Genotype-Specific Elemental Phytoremediation

Environmental Technologies of Woody Crop Production Systems

Evaluation ofPopulusandSalixContinuously Irrigated with Landfill Leachate II. Soils and Early Tree Development

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