The Earths climate depends on the bacteria

Bacteria affect the climate of our planet significantly "ahead" in the people. The exchange of signals between microbes — their original communication — has an important role in this process. This is the conclusion reached by scientists from the Institute of Oceanography Vudc Hall, USA.

Remnants of life, bubbling on the surface, slowly sink to the bottom of the ocean in the form of small particles — the detritus. This is an important process involved in the carbon cycle on Earth.

In the atmosphere, carbon is in the gaseous state, in the form of carbon dioxide. From there, he is captured by plants and is involved in the synthesis of organic compounds from which a man. Sinking particles of detritus attract a large number of microbes. They use it for food, providing that all the same carbon dioxide, which is returned to the atmosphere. Thus an almost closed cycle (almost — because after all of the carbon reaches the bottom and is "lost").

Bacteria that descend on the particles of detritus, actively exchanged between the messages. This allows them to assess the number of neighbors. When the density of "population" on the particle becomes large enough, the microbes begin to synthesize and secrete enzymes to her cleavage and digestion. Getting food at the same time, bacteria can eventually absorb much more organic than if they did it one by one, at different times. Experimental confirmation of bacterial detritus negotiations first got marine biogeochemist Laura hops, Benjamin Van Mui and Tracy Minser.

"We rarely think about the fact that the bacteria take collective decisions. But that's what they say our data," — says the hops.

"I think it's amazing that there are an incredible number of" negotiations "that occur in the ocean right now and affecting the carbon cycle on Earth," — says Van Mui.

The ability to make collective decisions in bacteria called quorum sensing and was discovered in the last century. But first, we learned that the negotiations of the smallest living things have a significant impact on our living space.

Like this post? Please share to your friends:
SQL - 46 | 0,241 сек. | 10.74 МБ