Since the early 1970s, American scientists have been working on the water depth of 2? 500? Hydrothermal fluid at m? Since the discovery of many biological communities in the vents, people have gradually realized that there are two kinds of oceans on the earth, blue and black, and? There are two main productive forces and their food chains. Blue Ocean takes plankton as its main productive force and obtains energy by absorbing sunlight. Quantity; On the other hand, hydrothermal bacteria are the main productive forces in the Black Sea, mainly relying on microorganisms to reduce the heat on the seabed through chemical synthesis. Sulfur oxides in liquid systems gain energy.

This is why there are a large number of submarine "chimney" hydrothermal vent systems around. The reasons for discovering many biological communities. Deep seabed microorganisms are mainly distributed in two environments: first, hydrothermal solution itself contains a large number of thermophilic bacteria, which is related to? Jet out of the seabed with other hydrothermal substances and deposit on hydrothermal vents. Volcanic rocks also contain a large number of bacteria. Two? It is a microorganism that exists in seabed sediments and strata below the seabed.

In the past ten years, scientists have continuously found a large number of microorganisms on the deep seabed, even in some deep-sea hot springs or hot springs. There are also a large number of biological communities around the liquid jet spill. Why are these microbes in such a bad ring? Still living freely in the environment? At the beginning of the discovery, marine biologists also thought it was a mystery that was difficult to explain.

Marine scientists have also found that the acetate content in general marine sediments is not enough for a large number of microorganisms to survive. Therefore, scientists are very puzzled about this. After many simulation experiments, they found that the seabed will sink when the temperature rises. Organic matter in sediments will accelerate decomposition and form more acetate nutrition. This can reasonably explain why. There will be a large number of microorganisms around the submarine hot springs or hydrothermal vents.

Later, in order to confirm this inference, scientists took a special submersible to analyze the geological sediment samples near the hot springs and hydrothermal vents at the bottom of the deep sea. The results show that the content of acetate is much higher than other components, and the higher the temperature, the more the content of the substance. Recently, a joint study by British and Norwegian scientists found that marine life will sink to the bottom of the sea after death, and gradually accumulate on the bottom of the sea to form sediments rich in organic matter. These organic substances will gradually decompose to form a nutrient called acetate. It is this nutrient that can provide microorganisms with essential elements such as carbon, oxygen and sulfur.

Meaning? Research by Italian scientists shows that the DNA of dead organisms provides 4% and 4% of the carbon required by microorganisms living on the seabed respectively. Nitrogen 7% and phosphorus 47%. When microorganisms "eat" these extracellular DNA, they quickly "regenerate" phosphorus, that is? They convert phosphorus in DNA into a photosynthetic organism, which can benefit phytoplankton and other organisms on the ocean surface? The inorganic form used.