Scientists from the University of East Anglia UEA found unique bacteria that feed on hydrocarbon compounds found in oil and natural gas in the Mariana trench. Together with researchers from China and Russia, they conducted the most complete analysis of these microbial populations. The study described in the article of the journal Microbiome. Reports Hvilya.
It should be noted that the Mariana trench located in Western Pacific ocean. It reaches a depth of almost 11 thousand metres. The team found that in the Mariana trench, the highest ratio uglevodorodnogo bacteria on Earth.
Note that the hydrocarbon — an organic compound consisting entirely of hydrogen atoms and carbon, it is very common and is found even in the crude petroleum and natural gas.
“These types of microorganisms essentially feed on compounds similar to those present in oil, and then use them as fuel,” explains Todd.
Scientists have isolated some of these microbes and demonstrated that they absorb hydrocarbons in the laboratory in conditions simulating the Mariana trench.
To understand where are the hydrocarbons, which feed on these bacteria, the team analyzed samples of sea water from the surface, and to precipitation to the bottom of the trench.
“We know that hydrocarbons exist at a depth of 6 thousand meters from the ocean surface, and possibly deeper, says Dr. Nicholas Pedenchuk from UEA. —A significant portion is probably due to contamination of the surface of the ocean.
To our surprise, we also found biologically produced hydrocarbons in oceanic sediment at depths of the depression. This suggests that in this environment, the hydrocarbons produces a unique microbial population. These hydrocarbons are similar to compounds that comprise diesel fuel, had previously been identified in algae on the ocean surface, but never to the microbes at these depths”.
As the researchers suggest, these hydrocarbons may help microbes survive the crushing pressure at the bottom of the Mariana trench. The connection can also serve as a food source for other microbes that can also absorb contaminants and hydrocarbons that reach the ocean floor.
Recall, scientists say, the most mysterious place on Earth is Mariana trench. After all, there cannot be the depth can hide the oldest unseen monsters.
As reported by the portal “Znayu” about 90% of the volume of the Black sea is a sulfide. This means that water resources that are suitable for life, sea creatures, remains 10%.
Also “Znayu” I wrote, in the human body bacteria exchange genes much faster than in nature.