Tuesday, 23 April 2013

pedro dani and alejandro 4ºA


APPLICATION OF GENETICALLY MODIFIED ORGANISMS TO DECONTAMINATE ECOSYSTEMS
genetically modified organism (GMO) is an organism whose genetic material has been altered using genetic engineering techniques. Organisms that have been genetically modified include micro-organisms such as bacteria and yeast, insects, plants, fish, and mammals

We are going to talk more precise about transgenic plants :
TRANSGENIC PLANTS

Transgenic plants of environmental benefit typically consist of plants that either reduce the input of agrochemicals into the environment or make the biological remediation of contaminated areas more efficient. Examples include the construction of species that result in reduced pesticide use and of species that contain genes for either the degradation of organics or the increased accumulation of inorganics. Cutting-edge approaches, illustrated by our own work, focus on the applicability of genetically modified (GM) plants that produce insect pheromones or that are specifically tailored to the phytoremediation of cadmium or PCBs. This paper discusses the role that the next generation of GM plants might play in preventing and reducing chemical contamination and in converting contaminated sites into safe agricultural or recreational land.

GENETIC ALTERATIONS IN BACTERIA AND ENZYMES

Also it exist a system for decontaminating areas affected by oil using  genetic alterations in enzymes and bacteria.
The process can transform the aromatic hydrocarbons, which are the most dangerous portion of oil for their ability to cause mutation and cancer.

The genetically altered enzymes become less dangerous to the environment and allow its natural degradation.
This facilitates recovery and clean.

Derrame petrolero

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