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Transcript of Metallotolerant
What is it?
Metallotolerant is being able to survive in environments of high concentrations of dissolved heavy metals in a solution.
Examples of metallotolerants is
Ferroplasma, and Halomonas titanicae.
Ferroplasma is a metallotolerant but also an acidophile. It is a species of iron-oxidizing and chemolithoautotrophic archaea. It lacks flagella and lives in high levels of iron and sulfur at a very acidic pH.
Their adaptations that help to survive is being able to have a smaller size, reducing energy loss, and being able to live in high concentrations of dissolved metals.
Why those adaptations?
Small size is important for successful growth under hyper gravity, the condition where the force of gravity exceeds that on the surface of the Earth. It has been said that extremophiles can live on different planets due to their abilities to live in extreme environments. Metallotolerants reduce energy loss by excreting less.
Halomonus Titanicae is a bacteria that was found on the remains of the Titanic. It was found on the rusticles in the wreckage. It was discovered in 2010 and was predicted that the bacteria will deteriorate the steel at a much faster rate. In about 15 to 20 years the Titanic may just be a pile of rust at the bottom of the ocean.