- an aquatic vascular plant as a biological monitor for heavy metal pollution

Ray, Sayan Kumar; White, W. J.

doi:10.1016/0045-6535(79)90059-6

Cited by 23 publications

(8 citation statements)

References 5 publications

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“…St-Cyr and Campbell (1994) found out that the metal concentrations in the above-ground parts of submerged plants tend to vary throughout the growing season which 184 Seasonal variation of metal accumulation and translocation in yellow pond-lily (Nuphar lutea) supports our findings. Ray and White (1979) revealed that generally metal concentrations of Equisetum arvense were higher in July, when plants were growing, than in September. Mortimer (1985) stated some changes in accumulation rates of metals in macrophytes due to the function of the season, the physiological age of the plant and the localization of the accumulated metal in growing parts.…”

Section: Resultsmentioning

confidence: 99%

Seasonal variation of metal accumulation and translocation in yellow pond-lily (Nuphar lutea)

Obalı

2008

Chemical Speciation & Bioavailability

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Heavy metal bioaccumulation and translocation properties of aquatic plants are interesting because of their potential use in phytoextraction. However, there is not enough knowledge about the seasonal changes of the metal distribution properties of aquatic plants. Our study focused on seasonal variation of some heavy metals in relation to their bioaccumulation and translocation in Nuphar lutea, a floating leaved, widespread plant that is important to wildlife. In this study, N. lutea, corresponding sediment and water samples were collected at different seasons from Lake Abant (Turkey) and analysed for their heavy metal content (Pb, Cr, Cu, Mn, Ni, Zn and Cd). Accumulation and translocation of heavy metal ratios were calculated seasonally. It was found that Cr and Zn were actively transported from sediment to the root, where they accumulated especially in summer; it was also shown that Cu, Mn and Zn were not only taken up from the sediment but also from the surrounding water. The investigations suggested that translocation ratios for leafyroot of Pb, Cr, Mn and Zn reached their highest levels in spring. It was found that the bioaccumulation and translocation of heavy metals at different parts of N. lutea changes with respect to season and the type of heavy metal.

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Section: Resultsmentioning

confidence: 99%

Seasonal variation of metal accumulation and translocation in yellow pond-lily (Nuphar lutea)

Obalı

2008

Chemical Speciation & Bioavailability

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“…the guidelines that have been suggested for biomonitor species (Campbell et al 1985;Campbell and Lewis 1988;Ray and White 1979). An important criterion remains untested, however; for biomonitor species, a predictable relation should exist between the bioaccumulated metal content and levels of "bioavailable" metals in the surrounding environment; this relation should be similar at all locations, under all conditions (Phillips 1977).…”

Section: Submerged Macrophytes As Biomonitors Of Trace Metalsmentioning

confidence: 99%

“…Preliminary studies with ValSubmerged plants have often been proposed as bioindicators of the presence of trace metal contamination in the aquatic environment (Aulio 1986;Brix et al 1983;Greger and Kautsky 1993;Mortimer 1985;Ray and White 1976). To be a good candidate as a biological indicator, a plant species should (i) be representative of the area; (ii) be widely distributed, abundant, and easy to collect; (iii) have a high tolerance for heavy metals and a high concentration factor; and (iv) be reasonably easy to identify unequivocally (Ray and White 1979). Submerged plants are known to concentrate trace metals in their tissues, with reported concentration factors ([MIplant (pg/g dry wt.)…”

Section: Introductionmentioning

confidence: 99%

Trace metals in submerged plants of the St. Lawrence River

St-Cyr¹,

Campbell²

1994

Can. J. Bot.

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ST-CYR, L., and CAMPBELL, P.G.C. 1994. Trace metals in submerged plants of the St. Lawrence River. Can. J. Bot. 72: 429-439. Vallisneria arnericana Michx. (wild celery), a submerged plant ubiquitous in the fluvial lakes St. Louis and St. Pierre of the St.Lawrence River, Quebec, shows potential as a bioindicator species for trace metals in its environment. The Cd, Cr, Cu, Ni, Pb, and Zn concentrations in V. arnericana leaves reflect spatial variations in environmental contamination and represent bioavailable trace metals potentially transferable through the food chain to higher orgaeisms. With the exception of Pb, V. arnericana concentrates trace metals to higher levels in its aboveground tissues than does Potarnogeton richardsonii (A. Bennett) Rydb., another abundant species in the studied lakes, although the two species show the same trend to higher trace metal concentrations at the more contaminated stations. Vallisneria arnericana from Lake St. Pierre shows higher concentrations for all trace metals studied than does the same species from Lake St. Louis (mean concentrations in pg/g dry wt. for Lake St. Pierre versus Lake St. Louis: Cd, 1.62 vs. 0.89; Cr, 3.9 vs. 2.5; Cu, 20.0 vs. 16.5; Ni, 13.1 vs. 5.6; Pb, 3.3 vs. 2.0; Zn, 130 vs. 91). Mean concentrations of Cd, Cr, Ni, and Zn exceed median values of these concentrations for aquatic plants from contaminated sites, as reported in the literature. Key words: Vallisneria arnericana, Potarnogeton richardsonii, bioindicator, trace metals, St. Lawrence River. ST-CYR, L., et CAMPBELL, P.G.C. 1994. Trace metals in submerged plants of the St. Lawrence River. Can. J. Bot. 72 : 429-439. La vallisnCrie amtricaine (Vallisneria urnericann Michx.), une plante submergke omniprksente dans les lacs fluviaux St-Louis et St-Pierre du fleuve St-Laurent, QuCbec, montre un potentiel intiressant en tant qu'espkce bioindicatrice des mCtaux traces dans son environnement. Les concentrations en Cd, Cr, Cu, Ni, Pb et Zn des feuilles reflktent la contamination du milieu et repkentent la partie biodisponible des metaux potentiellement transmissible dans la chaine alimentaire. A I'exception du plomb, la vallisnCrie concentre davantage les mCtaux traces dans ses tissus que le potamot de Richardson (Potarnogeron richardsonii (A. Bennett) Rydb.), autre espkce assez rCpandue dans les lacs CtudiCs, bien que les deux espkces montrent la m&me tendance d'avoir des concentrations plus ClevCes en mCtaux traces aux m&mes stations les plus contaminkes. La vallisnCrie du lac St-Pierre a des concentrations supirieures pour tous les mttaux traces CtudiCs B celle provenant du lac St-Louis (concentrations moyennes, en pg/g poids sec, respectivement, pour les lacs St-Pierre et St-Louis : Cd, 1,62 vs. 0,89; Cr, 3,9 vs. 2,s; Cu, 20 vs. 16,5; Ni, 13,l vs. 5,6; Pb, 3,3 vs. 2,O; Zn, 130 vs. 91). Les concentrations moyennes en Cd, Cr, Ni et Zn sont supCrieures B ce qui est rapport6 dans la IittCrature pour des plantes aquatiques provenant de plans d'eau contaminks. Mots ~1 . 4~ : Vallisneria americana, Potarnogeton...

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“…septangulare, a perennial rooted submerged macrophyte with an isoetid form, is a common and abundant aquatic plant in softwater lakes of central and eastern North America. It possesses several characteristics which make it a potentially useful biomonitor of trace metals (Ray and White 1976, 1979). Furthermore, Hg uptake and transport in plants of softwater lakes is of interest in the overall concern for bioaccumulation of mercury in such lakes remote from point sources of Hg.…”

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confidence: 99%

Mercury uptake from contaminated water and sediment by the rooted and submerged aquatic macrophyte Eriocaulon septangulare

Coquery

Welbourn

1994

Arch. Environ. Contam. Toxicol.

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Abstract. Laboratory experiments were designed to assess the relative importance of root vs shoot uptake of mercury by the submerged isoetid aquatic macrophyte Eriocaulon septangulare. Roots of mature plants that had been cultured for 31 days in sediments contaminated with non-toxic (approx. 1 I~g g 1) concentrations of inorganic mercury had significantly higher concentrations and significantly greater mercury content than plants cultured in the same way but in sediments without added mercury. Under the same experimental conditions, mercury content of leaves was related to the concentration of mercury in the water, being greater in the treatments which had higher total mercury in the water. The mercury in water in the experiments originated from the sediment. There was no evidence for transport of mercury from root to shoot within the plant, although there was possibly some transport in the opposite direction. The design of the experiment avoided making two compartments with a physical separation between the water (leaf)/sediment (root) interface, but with this design it was not possible to determine with certainty whether or not "downward" transport of mercury occurred within the plant. The results with E. septangulare and mercury support the idea that aquatic macrophytes can be useful monitors of metals in sediments.Rooted and submerged vascular plants can take up substances from their environment by one of two routes: either from the water column, through submerged shoots, or from interstitial water of the sediment, through the roots. The relative importance of these two routes for nutrient or for metal uptake, respectively, is not clear, although it is accepted that both pathways may operate in the same plant (Denny 1980 Campbell et al. 1985Campbell et al. , 1988.A number of investigators have suggested that aquatic macrophytes can serve as useful monitors of the bioavailability of sediment-bound toxic metals (Aulio 1980;Campbell et al. 1985Campbell et al. , 1988Lyngby and Brix 1987).Furthermore, the ability of rooted macrophytes to accumulate metals from the sediment compartment suggests that aquatic plants can play a role in metal cycling in lakes (Mclntosh et al. 1978;Larsen and Schierup 1981) by transferring metals to herbivores, by releasing metals during decomposition Schierup and Larsen 1981), or by secreting metals into the water column (Kraus et al. 1986). The cycling will be more effective if metal accumulated in the roots can be transported to the shoots.Many field studies have demonstrated metal accumulation in aquatic plants and the relative importance of root vs shoot accumulation seems quite variable. But because most field studies have not considered the root and shoot uptake separately, uptake routes and possible transport of metal within plants remain unclear.In order to address the relative importance of root vs shoot uptake in a rooted aquatic plant, we designed a laboratory experiment to assess the relative importance of two routes of Hg transfer between the sediment and Eriocaulon septan...

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- an aquatic vascular plant as a biological monitor for heavy metal pollution

Cited by 23 publications

References 5 publications

Seasonal variation of metal accumulation and translocation in yellow pond-lily (Nuphar lutea)

Seasonal variation of metal accumulation and translocation in yellow pond-lily (Nuphar lutea)

Trace metals in submerged plants of the St. Lawrence River

Mercury uptake from contaminated water and sediment by the rooted and submerged aquatic macrophyte Eriocaulon septangulare

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