Problems of Interpreting the Relationship Between the Amounts of Lead and Zinc in Plants and Soil on Metalliferous Wastes

Barry, Stephen; Clark, Simon

doi:10.1111/j.1469-8137.1978.tb01652.x

Cited by 31 publications

(6 citation statements)

References 32 publications

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“…With lead, there is only a poor relationship between soil-lead levels and plant levels. This is emphasized by the fact that plants growing on sites with similar degrees of lead contamination display widely varying concentrations of lead in their aerial organs and is in agreement with the findings of Barry and Clark (1978). Aerial contamination can be ruled out as a possible explanation because all leaves were thoroughly washed prior to processing.…”

Section: Discussionsupporting

confidence: 74%

Heavy metal tolerance in Festuca ovina L. from contaminated sites in the Eifel Mountains, Germany

Brown

Brinkmann

1992

Plant Soil

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Extremely high degrees of lead tolerance, measured by comparing rates of root extension in culture solutions, are reported from populations of Festuca ovina growing at two lead-mining sites (Westschacht and Keldenich-II) near Mechernich in the Eifel Mountains, Germany. Other populations from nearby heavy metal-contaminated areas show a considerably smaller degree of lead tolerance. Samples of Festuca ovina collected in the field at Westschacht and Keldenich-II contain higher levels of lead in their aerial organs than do those from other lead-contaminated sites. The main soil factor determining the high degree of lead tolerance is the high Pb/Ca ratio. Populations from soils with a low Pb/Ca ratio display a very low degree of tolerance. It is therefore concluded that in Westschacht and Keldenich-II plants, a genuine intracellular tolerance mechanism is present, allowing the accumulation of lead in aerial organs.Leaf samples of zinc-tolerant Festuca contain higher levels of zinc than do samples of non-tolerant plants. Lead and zinc amounts in leaves are correlated with the soil ratios of Pb/Ca and Zn/Ca, respectively, rather than with the absolute soil-metal levels.In a slightly lead-tolerant, but highly zinc-tolerant clone of Festuca ovina from a site contaminated with large amounts of lead and zinc (Plombi~res), lead was found to be the major factor affecting the inhibition of root extension with combined treatments of lead and zinc in culture solutions. In the highly lead-tolerant, zinc-sensitive population from Westschacht, zinc governs the response of root growth to combinations of the two metals. The results are discussed in terms of discriminating distinct types of heavy-metal tolerance.

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Section: Discussionsupporting

confidence: 74%

Heavy metal tolerance in Festuca ovina L. from contaminated sites in the Eifel Mountains, Germany

Brown

Brinkmann

1992

Plant Soil

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“…Regarding the exchangeable cations (Table 3b), only Pb and Zn had higher than normal levels. These values for exchangeable cations were also similar to those recorded elsewhere (Ernst 1968b;Davies 1971;Simon 1978;Barry & Clark 1978). The principal The principal component analysis of the floristic data (Fig.…”

Section: Principal Component Analysissupporting

confidence: 61%

The distribution of Minuartia verna and Thlaspi alpestre in the British Isles in relation to 13 soil metals

García-González¹,

Clark

1989

Vegetatio

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The plant-communities from habitats of the metallophyte species Minuartia verna and Thlaspi alpestre (T. caerulescens) at sites disturbed and undisturbed by mining are described. Four communities were delineated by cluster and principal component analysis. Group 1 comprised species-poor communities on disturbed non-calcareous soils; group 2, relatively species-rich communities on disturbed calcareous soils; group 3, species-rich communities in the main on undisturbed calcareous soils. Group 4 consisted of species-rich communities with an alpine element, in damp habitats on base-rich soils derived from igneous rocks. Total and exchangeable elements As, Ba, Ca, Cd, Co, Cr, Cu, Fe, Mg, Mn, Ni, Pb and Zn were determined for the soils of these sites. Levels of soil Ca, Cd, Pb and Zn accounted for most of the variation along the first axis of the PCA and soil nutrient levels were probably the main predictor along the second.

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“…Similar uptake patterns have been proposed by Berry (1986) from laboratory and field studies. Barry and Clark (1978) have also reported that the range of substrate metal concentrations over which measurements are made, dictates the plant/substrate relationship. Thus a plant may exhibit all of the above uptake patterns over different concentration ranges of the element in the substrate.…”

Section: Introductionmentioning

confidence: 99%

Comparative studies of nickel, cobalt, and copper uptake by some nickel hyperaccumulators of the genus Alyssum

et al. 1991

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Problems of Interpreting the Relationship Between the Amounts of Lead and Zinc in Plants and Soil on Metalliferous Wastes

Cited by 31 publications

References 32 publications

Heavy metal tolerance in Festuca ovina L. from contaminated sites in the Eifel Mountains, Germany

Heavy metal tolerance in Festuca ovina L. from contaminated sites in the Eifel Mountains, Germany

The distribution of Minuartia verna and Thlaspi alpestre in the British Isles in relation to 13 soil metals

Comparative studies of nickel, cobalt, and copper uptake by some nickel hyperaccumulators of the genus Alyssum

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