cadmium, nickel and vanadium accumulation by three strains of marine bacteria

Cadmium, Nickel and Vanadium Accumulation by Three Strains of Marine Bacteria

Three marine bacteria, Pseudomonas putida PTCC 1664, Bacillus cereus  PTTC 1665 and Pseudomonas pseudoalkaligenes PTCC 1666 isolated from the East Anzali wetland sediments of the Caspian Sea, were resistant to heavy metals of Cadmium (Cd), Nickel (Ni) and Vanadium (V). Pseudomonas pseudoalkaligenes PTCC 1666 was found to be resistant to all 3 metals Ni, Cd, V. Heavy metal uptake was determined ...

Factors influencing cadmium accumulation and its toxicity to marine organisms

The toxicity of dissolved cadmium to a variety of marine animals has been found to be related to salinity, with decreased toxicity observed at higher salinities. Recent data from our laboratory have demonstrated that the toxicity of cadmium to estuarine shrimp and larval fish is a function of free cadmium ion concentration, which in turn is controlled by the chloride concentration of the water....

Bacteria metabolically engineered for enhanced phytochelatin production and cadmium accumulation.

Phytochelatins (PCs) with good binding affinities for a wide range of heavy metals were exploited to develop microbial sorbents for cadmium removal. PC synthase from Schizosaccharomyces pombe (SpPCS) was overexpressed in Escherichia coli, resulting in PC synthesis and 7.5-times-higher Cd accumulation. The coexpression of a variant gamma-glutamylcysteine synthetase desensitized to feedback inhib...

The effect of habitat on the accumulation of nickel (Ni) and cadmium (Cd) in the gastrointestinal tract of mullet

The aim of this study was to evaluate the effect of two different environments (Faroe Lake and Caspian Sea) on the accumulation of nickel and cadmium in gastrointestinal tissue. A total of 49 mullets collected and transported to the laboratory on Lake Faro and the Iranian shores of the Caspian Sea with ice. After extracting the contents of the gastrointestinal tract, the middle and near the end...

Accumulation and transport of cadmium by tolerant and susceptible strains of Mycobacterium scrofulaceum.

Cadmium accumulation and transport were studied in two strains of Mycobacterium scrofulaceum differing in their susceptibility to Cd2+ toxicity. A 10-fold excess of either Zn2+ or Mn2+ partially antagonized inhibition of growth by Cd2+. 109Cd2+ uptake by both the tolerant and susceptible strains was temperature dependent and inhibited by a 10-fold excess of either Zn2+ or Mn2+. There were no si...

Inhibition of Human Erythrocyte Glucose 6-Phosphate Dehydrogenase by Cadmium, Nickel and Aluminium