The effects of temperature, salinity and seagrass species on the uptake of lead(II) from seawater by excised leaves

Bond, Alan M.; Reust, Verena; Hudson, H.A.; Arnup, Kevin R.; Hanna, Peter; Strother, S.

doi:10.1016/0304-4203(88)90035-7

Cited by 14 publications

(7 citation statements)

References 12 publications

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“…2b). Thus, it seems likely that temperature, more than light intensity, is responsible for this effect, since previous reports have shown that higher temperatures increase the accumulation of lead in different plant species [5].…”

Section: Discussionmentioning

confidence: 97%

Surface adsorption, intracellular accumulation and compartmentalization of Pb(II) in batch-operated lagoons with Salvinia minima as affected by environmental conditions, EDTA and nutrients

Olguín

Sánchez-Galván

Pérez-Pérez

et al. 2005

J IND MICROBIOL BIOTECHNOL

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The effects of environmental factors and nutrients on the various possible removal mechanisms (surface adsorption, intracellular accumulation and precipitation to sediments) and partitioning of lead among various compartments (plant biomass, water column and sediments) in Salvinia minima batch-operated lagoons, were evaluated. Surface adsorption was found to be the predominant mechanism for Pb(II) removal under all environmental conditions tested in the absence of nutrients (an average of 54.3%) and in a nutrient medium (modified Hutner 1/10 medium) free of EDTA and phosphates (54.41%) at "high" initial Pb(II) concentrations (in the range of 10.3+/-0.13 to 15.2+/-0.05 mg/L). Under these conditions, the bioconcentration factors (BCFs) were 2,431+/-276 and 2,065+/-35, respectively. Lead removal was very rapid during the first 4 h and reached 70% in the absence of nutrients at the "medium" light intensity and temperature (LIT) tested, 88% in nutrient medium free of EDTA and supplemented with synthetic wastewater (at the "lowest" LIT tested), and 85% in medium free of EDTA and phosphates. It was concluded that the mechanisms of lead removal by S. minima, and the compartmentalization of this metal in the microcosm of batch-operated lagoons, are primarily a function of the presence of certain nutrients and chelants, with secondary dependence on environmental conditions. In addition, the results indicate that the percentage of lead removed is only a gross parameter and that the complementary use of BCF and compartmentalization analysis is required to gain a full insight into the metal removal process.

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Section: Discussionmentioning

confidence: 97%

Surface adsorption, intracellular accumulation and compartmentalization of Pb(II) in batch-operated lagoons with Salvinia minima as affected by environmental conditions, EDTA and nutrients

Olguín

Sánchez-Galván

Pérez-Pérez

et al. 2005

J IND MICROBIOL BIOTECHNOL

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“…The fact that, as in the study of Malea et al (1994) and Sanchiz et al (1999Sanchiz et al ( , 2001, no correlation has been found between Pb concentrations in Posidonia oceanica and in the sediment, would indicate that Pb in Posidonia occeanica tissues reflects Pb in the water column. This hypothesis is reinforced when considering laboratory studies which showed that aquatic plants can remove Pb from the surrounding water (Bond et al, 1988;Axtell et al, 2003). As for Cd, the Pb maximum value in sediment, found in Livorno, may be related to the presence of high amounts of calcium carbonate grains in the effluents of the Rosignano plant (Petrilli et al, 1979;Ferrara et al, 1989;Balestri et al, 2004) which would reduce the uptake of Pb by Posidonia oceanica (Kabata-Pendias and Pendias, 1984;Sanchiz et al, 2001).…”

Section: Discussionmentioning

confidence: 97%

Trace metals assessment in water, sediment, mussel and seagrass species – Validation of the use of Posidonia oceanica as a metal biomonitor

et al. 2007

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The accumulation of trace metals (Cd, Co, Cr, Hg, Ni and Pb) was measured in water, sediment, the mussel Mytilus galloprovincialis and the seagrass Posidonia oceanica. Samples were collected in three locations of the north-western Mediterranean (Canari, Livorno and Porto-Torres) which present different levels and sources of human impact. Analyses in the different compartments (water, sediment, M. galloprovincialis and P. oceanica) have allowed to identify Canari as the most Cd, Co, Cr and Ni contaminated site; Livorno as the most Hg contaminated and Porto-Torres as the most Pb contaminated. Furthermore, for the first time, metal concentrations found in P. oceanica have been compared with those found in the water column, in the sediment and in the recognized metal bio-indicator species M. galloprovincialis and the results obtained have led to the same conclusions. Thus, this study allows to validate the use of P. oceanica as metal biomonitor of coastal waters.

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“…Several laboratory studies show that the leaves of marine phanerogams reflect the lead concentration in the water (Lyngby & Brix, 1984; Bond et al ., 1988). The present study showed no significant correlation between Pb concentrations in the seagrasses and in the sediment: this could indicate a more direct relationship in Posidonia oceanica and in Cymodocea nodosa to lead concentrations in the water than to those in the sediment.…”

Section: Discussionmentioning

confidence: 99%

Heavy Metal Contents in Soft‐Bottom Marine Macrophytes and Sediments Along the Mediterranean Coast of Spain

2000

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Abstract. Hg, Cd, Pb and Zn concentrations were determined in sediment and in tissues of five species of soft‐bottom marine macrophytes (Posidonia oceanica, Cymodocea nodosa, Zostera noltii, Ruppia cirrhosa and Caulerpa prolifera) along the Spanish Mediterranean coast. Levels of metals were low in most of the sampling stations and similar to those found by other authors in uncontaminated zones. Certain locations, however, showed some degree of contamination (Cambrils, Almassora, Alacant, Mar Menor and El Portús). In Santa Pola we found high contents of metals in one sample of sediment due to the high proportion of the fine fraction (particules < 63µm) and organic matter, but not in the seagrass species. Mercury and zinc concentrations in the sediment are correlated to those in at least some anatomic fractions of Posidonia oceanica, Cymodocea nodosa and Caulerpa prolifera, suggesting that these species reflect the levels of these metals in the environment. Lead contents in the alga Caulerpa prolifera are also correlated to those in the sediment, while no significant correlations were obtained for cadmium. Among the species studied, Posidonia oceanica and Cymodocea nodosa seem to be better biomonitors than Caulerpa prolifera.

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The effects of temperature, salinity and seagrass species on the uptake of lead(II) from seawater by excised leaves

Cited by 14 publications

References 12 publications

Surface adsorption, intracellular accumulation and compartmentalization of Pb(II) in batch-operated lagoons with Salvinia minima as affected by environmental conditions, EDTA and nutrients

Surface adsorption, intracellular accumulation and compartmentalization of Pb(II) in batch-operated lagoons with Salvinia minima as affected by environmental conditions, EDTA and nutrients

Trace metals assessment in water, sediment, mussel and seagrass species – Validation of the use of Posidonia oceanica as a metal biomonitor

Heavy Metal Contents in Soft‐Bottom Marine Macrophytes and Sediments Along the Mediterranean Coast of Spain

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