Trace metals in Montreal urban soils and the leaves of <i>Taraxacum officinale</i>

Marr, Kimberly; Fyles, Helen; Hendershot, William H.

doi:10.4141/s97-014

Cited by 37 publications

(15 citation statements)

References 7 publications

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“…Each soil Values are represented as mean ±Std error of three replicates (n=3). '*' represents statistically significant (p <0.05) difference compared to control (site: C) using one-way ANOVA SPSS (version 20.0) Dunett's post hoc test is specific in terms of pollution monitoring as the quantity of heavy metals introduced and its behaviour is associated with soil properties 27 . Findings of Rattan 28 advocates that soil is nutrient rich and the presence of heavy metals in high concentrations implies its persistence, affects the productivity in long-term.…”

Section: Discussionmentioning

confidence: 99%

Extent of Heavy Metal Accumulation in Sewage Irrigated Soils and Their Impact on Distribution of Earthworm Communities: Linking Chromium and Zinc Toxicity on Growth and Reproduction in Selected Earthworm Species.

Latha

Basha

2016

Curr. World Environ

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Soil ecosystem polluted by metals affect the structure of soil invertebrate population(s) and dynamics leading to altered distribution of species. This study focuses on earthworm distribution in sewage irrigated agricultural lands around Bangalore. The occurrence of reported species from the sampled areas is Eudrilus eugeniae, Lampito maurutii, Pontoscolex corethrurus, Polypheretima elongata, Perioynx excavates and Eisenia fetida. Laboratory studies conducted to evaluate feed ingestion rate and body mass changes in earthworms exposed to metal spiked soils revealed species specific pattern. Eudrilus eugeniae and Lampito maurutii showed a steep increase in body weight, while Pontoscolex corethrurus exhibited decreased trend upon Zn exposure. Contrarily a significant (p<0.05) decline in body weight was evident in all the three species upon exposure to Cr spiked soils. The observed alterations in feeding and body mass index concomitantly influenced the reproductive parameters. Rate of hatchability and reproductive function found to be decreased in Cr spiked soils in all the three species studied. Contrarily, increased hatchability was observed in E.eugeniea and L.maurutii followed by a decrease rate in P.corethrurus upon exposure of Zn spiked soils. However, reproductive rate found to be increased in E.eugeniea and P.corethrurus with decreased trend in L.maurutii. Thus, use of sewage polluted water for irrigation purpose has led to increased soil metal concentration impacting earthworm physiology and distribution.

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Section: Discussionmentioning

confidence: 99%

Extent of Heavy Metal Accumulation in Sewage Irrigated Soils and Their Impact on Distribution of Earthworm Communities: Linking Chromium and Zinc Toxicity on Growth and Reproduction in Selected Earthworm Species.

Latha

Basha

2016

Curr. World Environ

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“…The metals analyzed in this study were chosen because all are common anthropogenic pollutants that are frequently investigated in studies analyzing the metal content of soil and plant tissue (e.g., Kabata-Pendias and Pendias, 1992;Djingova and Kuleff, 1993;Marr et al, 1999), and all of these metals (in some form) have been demonstrated to have mutagenic properties (Fukunaga et al, 1981;Wong, 1988;Reutova and Shevtchenko, 1991;Rossetto et al, 1994;Codina et al, 1995;Toyokuni, 1996;Zhou et al, 2001). Concentrations of Cd, Cr, Cu, Fe, Mn, Ni, and Zn in the leaf and soil digests were determined by inductively coupled plasma atomic emission spectrometry (ICP-AES) using a Thermo Jarrel Ash Corporation ICAP 61E plasma emission spectrometer.…”

Section: Chemical Analysismentioning

confidence: 99%

Pollution and Genetic Structure of North American Populations of the Common Dandelion (Taraxacum Officinale)

Keane

Collier

Rogstad

2005

Environ Monit Assess

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Assessing the genetic structure of natural populations differentially impacted by anthropogenic contaminants can be a useful tool for evaluating the population genetic consequences of exposure to pollution. In this study, measures of genetic diversity at variable-number-tandem-repeat loci in six dandelion populations (3 urban and 3 rural) showed patterns that may have been influenced by exposure to environmental contaminants. Mean genetic similarity among individuals within a population was significantly and positively correlated with increasing levels of airborne particulate matter (< or = 10 microm, PM10) and soil concentrations of four metals (Cd, Fe, Ni and Pb). In addition, mean genetic similarity was always significantly higher at the urban sites compared to rural sites. There was a significant negative correlation between the number of genotypes at a site and increasing amounts of PM10, concentrations of five soil metals (Cd, Cu, Fe, Ni and Pb), leaf tissue levels of Fe and a significant positive correlation between the extent of clonality at a site and levels of PM10 and soil concentrations of five metals (Cd, Cu, Fe, Ni and Pb). Although, this study does not directly establish a causal link between the specific contaminants detected at the study sites and differences in genetic diversity, our data are consistent with the hypothesis that pollution-induced selection has contributed in some fashion to the lower genetic diversity found at the urban sites.

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“…Recently it was used to evaluate trace metal bioavailability in abandoned industrial sites, community gardens and parks in urban Montréal, QC (Marr et al 1999). With increasing levels of pollution, traits such as the length and weight of seeds decrease, but the number of seeds increases, as an adaptation to survive unfavourable conditions (Savinov 1998).…”

Section: Namesmentioning

confidence: 99%

The biology of Canadian weeds. 117. Taraxacum officinale G. H. Weber ex Wiggers

Stewart-Wade¹,

Neumann²,

Collins³

et al. 2002

Can. J. Plant Sci.

139

111

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is a perennial weed occurring in parks, gardens, pastures, orchards, roadsides, vegetable gardens, agricultural crops and horticultural crops. A common weed worldwide, it was originally introduced from Eurasia and now occurs in every province of Canada. It is an aesthetic problem during flowering and seed production, interrupting turfgrass uniformity and density; it reduces yields of agricultural crops; it causes slower drying of hay; its pollen is allergenic; and it acts as an alternative host for several pests and diseases. A number of herbicides are available for its control. Mechanical removal of T. officinale plants has limited success, due to the regenerative capacity of the long taproot. Insects, fungi, sheep and geese have been considered as biological control agents for dandelion.

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Trace metals in Montreal urban soils and the leaves of Taraxacum officinale

Cited by 37 publications

References 7 publications

Extent of Heavy Metal Accumulation in Sewage Irrigated Soils and Their Impact on Distribution of Earthworm Communities: Linking Chromium and Zinc Toxicity on Growth and Reproduction in Selected Earthworm Species.

Extent of Heavy Metal Accumulation in Sewage Irrigated Soils and Their Impact on Distribution of Earthworm Communities: Linking Chromium and Zinc Toxicity on Growth and Reproduction in Selected Earthworm Species.

Pollution and Genetic Structure of North American Populations of the Common Dandelion (Taraxacum Officinale)

The biology of Canadian weeds. 117. Taraxacum officinale G. H. Weber ex Wiggers

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