Progress has been made in the study of deep-sea energy ecosystems

"Discovery" ROV in the Cold Spring Area of the South China Sea to collect flat-end deep-sea top clams and other biological samples
Recently, the "Cell" sub-journal
online published
Institute of Oceans researcher Li Chaolun team in the deep-sea invertebrate animalization The latest results in the study of the maintenance and interoperability mechanism of the nutritional symbiosis reveal the function of non-bacterial cells, bacteria-containing cells and symbiotic bacteria in the non-bacterial cells, bacteria-containing cells and symbiotics in the flat-end deep-sea top clams
, the formation of symblosis with chemical energy bacteria is an important ecological strategy for invertebrates to adapt to the special habitats of deep-sea thermal fluid/cold springs. Flat-end deep-sea top clams are one of the most representative invertebrates in the cold spring area of the South China Sea, and have a symbiotic relationship with methane oxidizing bacteria. The silk of flat-end deep-sea top clams is the place where host cells establish and maintain symbiotic relationships with symbiotic bacteria. Silk is composed of a variety of cells, such as cerum cells, mucus cells and interstate cells, which contain bacteria cells and surrounding symbiatic cells, and the complexity of silky tissue has been troubling the analysis of the host-symbic bacteria interoperability mechanism.
The study relied on the ocean's "Science" scientific examination, through the way of trypsin degradation, rich bacteria-containing cells, and through the comparison of transcription group - macro transcription group combined way, the flat end of the deep-sea top clams
the study found that the non-symbic part regulates the spatial structure and movement of the silk, maintains cell growth, provides mucus immune protection, and plays an important supporting role; Flat-end deep-sea top clams and symbiotic bacteria can work together at the tissue, cell and molecular levels, maintaining an efficient and harmonious chemical synthesis of "micro-ecological levels".
the research was supported by projects such as the Ministry of Science and Technology's Key Research and Development Program, the Lushan Innovation Program of the Pilot National Laboratory for Marine Science and Technology, the
Strategic Pilot Project and the High-end Users of Science.
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