Factors affecting the uptake of 14C-labeled organic chemicals by plants from soil

Topp, E.; Scheunert, I.; Attar, A.; Körte, F.

doi:10.1016/0147-6513(86)90066-7

Cited by 180 publications

(82 citation statements)

References 16 publications

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“…For example, RCFs [8,53], stem or wood concentration factors [30,[54][55][56][57]; and aboveground or shoot concentration factors [33,43,58] have been related to log K OW . Similarly, based on the assumption that the lipophilic cuticle is the major plant component governing air-plant interactions, simple regression models have been developed that relate air-shoot BCFs to K OA [59][60][61][62] or to a combination of K AW (dimensionless) and K OW [63].…”

Section: Relationships Between Plant Bioaccumulation Metrics and Orgamentioning

confidence: 99%

A review of measured bioaccumulation data on terrestrial plants for organic chemicals: Metrics, variability, and the need for standardized measurement protocols

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Shunthirasingham

Dettenmaier³

et al. 2017

Enviro Toxic and Chemistry

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Quantifying the transfer of organic chemicals from the environment into terrestrial plants is essential for assessing human and ecological risks, using plants as environmental contamination biomonitors, and predicting phytoremediation effectiveness. Experimental data describing chemical uptake by plants are often expressed as ratios of chemical concentrations in the plant compartments of interest (e.g., leaves, shoots, roots, xylem sap) to those in the exposure medium (e.g., soil, soil porewater, hydroponic solution, air). These ratios are generally referred to as "bioconcentration factors" but have also been named for the specific plant compartment sampled, such as "root concentration factors," "leaf concentration factors," or "transpiration stream (xylem sap) concentrations factors." We reviewed over 350 articles to develop a database with 7049 entries of measured bioaccumulation data for 310 organic chemicals and 112 terrestrial plant species. Various experimental approaches have been used; therefore, interstudy comparisons and data-quality evaluations are difficult. Key exposure and plant growth conditions were often missing, and units were often unclear or not reported. The lack of comparable high-confidence data also limits model evaluation and development. Standard test protocols or, at a minimum, standard reporting guidelines for the measurement of plant uptake data are recommended to generate comparable, high-quality data that will improve mechanistic understanding of organic chemical uptake by plants. Environ Toxicol Chem 2018;37:21-33. C 2017 SETAC

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Section: Relationships Between Plant Bioaccumulation Metrics and Orgamentioning

confidence: 99%

A review of measured bioaccumulation data on terrestrial plants for organic chemicals: Metrics, variability, and the need for standardized measurement protocols

Doucette

Shunthirasingham

Dettenmaier³

et al. 2017

Enviro Toxic and Chemistry

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“…Organic chemicals with strong lipophilic characters (i.e., high n-octanol-water partitioning coefficient, K OW ) tend to have a high uptake by plants from water. Good loglog linear relationships between plant root concentration factors (RCFs) and K OW have been established, and are commonly used to estimate the equilibrium distribution of organic chemicals in water-plant systems (Briggs et al, 1982;Topp et al, 1986;Trapp and Pussemier, 1991). Organic contaminants in plant tissues may be partially metabolized.…”

Section: Introductionmentioning

confidence: 99%

“…Aromatic amines such as m-chloroaniline displayed a similar binding mechanism, and was postulated to conjugate with plant lignin via 1,6-nucleophilic addition to a quinone methide intermediate during the lignin synthesis (Still et al, 1981). Many studies on the plant uptake of organic pollutants have calculated the concentration factors as the ratio of 14 C-labelled concentration in plant (e.g., roots) to that in the surrounding environment (Briggs et al, 1982;Topp et al, 1986). This is valid only for the compounds that do not undergo any loss and transformation processes (e.g., volatilization, metabolism and formation of bound residues) and dilution due to plant growth because these processes prevent the uptake from reaching true equilibrium, and the use of 14 C-labelled compounds does not discriminate the parent compound from its metabolites and bound residues.…”

Section: Introductionmentioning

confidence: 99%

Uptake of trifluralin and lindane from water by ryegrass

Sheng

et al. 2002

Chemosphere

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“…An understanding of how these parameters affect plant uptake is needed to assess the likely level of crop/plant contamination; this need has promoted a series of investigations on the plant-uptake process in recent time (Briggs et al, 1982(Briggs et al, , 1983Topp et al, 1986;Trapp and Matthies, 1995;Trapp et al, 1990;Riederer, 1990;Paterson et al, 1994;Trapp, 1995;Burken and Schnoor, 1997;Weiss, 2000;Chiou et al, 2001;Li et al, 2002;Trapp, 2004;Gao et al, 2005). Analyses of the levels of nonionic contaminants in plants in relation to the external levels in water (or soil water) from extensive sources have revealed that these contaminants enter plants largely via passive (i.e., partition) process (Briggs et al, 1982;Chiou et al, 2001;Trapp, 2004;Gao et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Bioconcentration of atrazine and chlorophenols into roots and shoots of rice seedlings

Zhu

2006

Environmental Pollution

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Uptakes of o-chlorophenol, 2,4-dichlorophenol, and atrazine at various levels from nutrient solution by roots and shoots of rice seedlings were investigated using a partition-limited model. AbstractAccumulation of o-chlorophenol (CP), 2,4-dichlorophenol (DCP), and atrazine (ATR), as single and mixed contaminants, from hydroponic solutions into roots and shoots of rice seedlings was studied following 48-h exposure of the plant roots. As single contaminants at low levels, the observed bioconcentration factors (BCFs) of CP and DCP with roots approximated the equilibrium values according to the partition-limited model. The BCF of atrazine with roots was about half the partition limit for unknown reasons. The BCFs of CP and ATR with shoots also approximated the partition limits, while the BCF for more lipophilic DCP with shoots was about half the estimated limit, due to insufficient water transport into plants for DCP. As mixed contaminants at low levels, the BCFs with both roots and shoots were comparable with those for the single contaminants; at high levels, the BCFs generally decreased because of the enhanced mixed-contaminant phytotoxicity, as manifested by the greatly reduced plant transpiration rate.

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Factors affecting the uptake of 14C-labeled organic chemicals by plants from soil

Cited by 180 publications

References 16 publications

A review of measured bioaccumulation data on terrestrial plants for organic chemicals: Metrics, variability, and the need for standardized measurement protocols

A review of measured bioaccumulation data on terrestrial plants for organic chemicals: Metrics, variability, and the need for standardized measurement protocols

Uptake of trifluralin and lindane from water by ryegrass

Bioconcentration of atrazine and chlorophenols into roots and shoots of rice seedlings

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