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Function and Development of Deep-sea Mussel Bacteriocytes Revealed by SnRNA-seq and Spatial Transcriptomics.

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  • 1Center of Deep Sea Research, and Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China.

Genomics, Proteomics & Bioinformatics
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This summary is machine-generated.

Deep-sea mussels host symbiotic microbes within specialized bacteriocytes. These cells manage microbial interactions, metabolism, and development, showcasing host-symbiont interdependence crucial for deep-sea adaptation.

Keywords:
ChemosymbiosisDevelopment plasticityHost-symbiont interactionImmune regulationMetabolic interaction

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Area of Science:

  • Marine Biology
  • Symbiosis Research
  • Deep-Sea Ecology

Background:

  • Deep-sea chemosynthetic ecosystems feature unique host-microbe symbioses.
  • Bacteriocytes, host cells harboring symbionts, are vital but poorly understood in these environments.

Purpose of the Study:

  • To investigate the function and development of bacteriocytes in deep-sea mussels.
  • To elucidate host-symbiont interactions within these specialized cells.

Main Methods:

  • In situ decolonization assays.
  • Single-nucleus and spatial transcriptomics.
  • Multi-omics data analysis and 3D reconstruction.

Main Results:

  • Bacteriocytes regulate immune responses for endosymbiont management.
  • Bacteriocytes engage in metabolic exchange (carbohydrate, ammonia) with symbionts.
  • Developmental trajectories of bacteriocytes were mapped, influenced by conserved transcription factors and symbionts.

Conclusions:

  • Deep-sea mussel bacteriocytes exhibit functional and developmental plasticity.
  • Host-symbiont interdependence is key for adaptation to extreme deep-sea environments.