geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

The influence of calcium and pH on the uptake and toxicity of copper in Folsomia candida exposed to simplified soil solutions


, : The influence of calcium and pH on the uptake and toxicity of copper in Folsomia candida exposed to simplified soil solutions. Journal of Hazardous Materials 261: 405-413

The aim of the present study was to investigate the influence of Ca and pH on the uptake and effects of Cu in Folsomia candida (Collembola). Assuming that soil pore water is the main route of exposure, F. candida were exposed for seven days to Cu in simplified soil solutions at different Ca concentrations and different pH levels. A hormetic-type effect was seen for the effect of Cu on F. candida survival. Toxicity of Cu was slightly decreased and Cu uptake increased at the highest Ca concentrations. Cu toxicity and uptake were not significantly affected by pH. Conditional binding constants for Cu(2+), Ca(2+) and H(+), calculated with a Langmuir isotherm, were used to relate Cu toxicity to the fraction of occupied binding sites (BL). The estimated 50% effect level (fCu-BL50) was 0.14 when all data were combined. To verify the Langmuir parameters, binding constants calculated based on internal Cu concentrations were used to estimate predicted effects and compared with the measured values. A good correlation between predicted and measured survival indicated that the principles of a biotic ligand model may be applicable to explain Cu toxicity to F. candida in simplified soil solutions.

US$19.90

PMID: 23973473

DOI: 10.1016/j.jhazmat.2013.07.032


Other references

Anderhuber, F.; Thiel, W., 2012: Emeritus O. Univ. Prof. Dr. Med. Univ. Walter Thiel (1919-2012). Clinical Anatomy 25(4): 525-526

Hilz, M.J.; Koehn, J.; Tillmann, A.; Riss, S.; Marthol, H.; Köhrmann, M.; Wasmeier, G.; Schwab, S.; Stemper, B., 2013: Autonomic blockade during sinusoidal baroreflex activation proves sympathetic modulation of cerebral blood flow velocity. Pharmacological blockade showed sympathetic origin of 0.03 to 0.15 Hz blood pressure (BP) oscillations and parasympathetic origin of 0.15 to 0.5 Hz RR-interval (RRI) oscillations, but has not been used to determine origin of cerebral blood flow ve...

Neagu, I.; Levine, E., 2016: A Primer on Quantitative Modeling. Caenorhabditis elegans is particularly suitable for obtaining quantitative data about behavior, neuronal activity, gene expression, ecological interactions, quantitative traits, and much more. To exploit the full potential of these data one seeks...

Röyttä, M.; Olsson, I.; Sourander, P.; Svendsen, P., 1981: Infantile bilateral striatal necrosis. Clinical and morphological report of a case and a review of the literature. A case of infantile bilateral striatal necrosis (IBSN) is reported, the first one found in Scandinavia. Extensive clinical and laboratory investigations did not reveal any evidence of a neurometabolic disease. By computed tomography (CT) degenerat...

Studebaker, Gerald A., 1967: Interest variability and the air-bone gap. There is a belief that bone-conduction thresholds cannot be worse than air-conduction thresholds but bone conduction thresholds can be shown to be worse than air-conduction thresholds on the basis of interest variability. The bone threshold was lo...

Konstam, M.A., 2012: Renal function and heart failure treatment: when is a loss really a gain?. Circulation. Heart Failure 4(6): 677-679

Tkaczewski, W.; Chojnacki, J.; Klupińska, G.; Grzegorczyk, K.; Brzeziński, M.; Kedziora-Kornatowska, K.; Wichan, P., 1991: Effect of cimetidine on the heart conduction system. An effect of cimetidine on ECG records has been investigated in a group of 40 patients with gastric or duodenal ulcers and coexisting circulatory disorders. For this purpose ECG has been recorded with Holter's technique (Medilog 2000) togethe...

Goltz, J.P.; Kickuth, R.; Scholl, A.; Machann, W.; Ritter, C.O.; Hahn, D.; Wittenberg, Günther., 2011: Explantation of totally implantable venous access ports of the forearm: reasons for removal and observed complications. To evaluate indications for, and complications during, explantation of interventionally placed totally implantable venous access ports (TIVAPs) of the forearm. Many studies analyze the explantation procedure of pectorally placed TIVAPs. The litera...

Sorteberg, A., 1981: Effects of sewage sludge application on the yield of different crops and the uptake of some heavy metals. In pot trials in 1971-3 barley, oats, timothy and red clover were grown on a loam soil with or without CaO application (pH 6.2-6.2 and pH 5.6-5.9, resp.) and given 0-400 g sewage sludge/pot (= 0-160 t/ha). Grain yields of oats were max. with 100 a...

Tseng, C-Hsiao., 2011: Diabetes conveys a higher risk of gastric cancer mortality despite an age-standardised decreasing trend in the general population in Taiwan. The association between diabetes and gastric cancer has been rarely studied. To investigate gastric cancer mortality trends, the mortality rate ratios between patients with diabetes and the general population, and the risk factors for gastric canc...