Bioremediation of toxic substances by mercury resistant marine bacteria.

Mercury-resistant marine bacteria and their role in bioremediation of certain toxicants

Mechanisms of mercury bioremediation.

Mercury is one of the most toxic heavy metals, and has significant industrial and agricultural uses. These uses have led to severe localized mercury pollution. Mercury volatilization after its reduction to the metallic form by mercury-resistant bacteria has been reported as a mechanism for mercury bioremediation [Brunke, Deckwer, Frischmuth, Horn, Lunsdorf, Rhode, Rohricht, Timmis and Weppen (1...

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 ...

Cloning and Characterization of a mer Operon From Natural Aquatic Bacteria

Mercury is a highly toxic element and has caused numerous cases of human toxicity throughout history. Methylmercury is the most toxic form of mercury and bioaccumulates in fish consumed by humans. Mercury resistant bacteria exist in nature that have the ability to detoxify methylmercury by a two-enzyme system encoded on the mer operon. Currently only mer operons cloned from clinical isolates ar...

Isolation and molecular characterization of bacteria to heavy metals isolated from soil samples in Bokaro Coal Mines, India

In recent years, environmental pollution by coal mining is a long-established human activity affecting all levels of life with various environmental impacts by generating heavy metals. The presence of heavy metals even in trace amount is toxic and detrimental to all living organisms. The coal mine area in Bokaro is one of the “Toxic Hotspot” in India. Bacteria have evolved uptake and efflux mec...