From Bacteria To Bivalves To Birds: Inter-Kingdom Interactions In A Marine Symbiosis

13.03.2024

Lucinid clams host a nutritional symbiosis with chemosynthetic sulfide-oxidizing bacteria within gill epithelial cells. Their ancient age and unmatched diversity make them excellent models for the evolution of host-microbe associations.

Aims: Characterize a potentially novel chemosymbiotic lucinid bivalve from Mauritania and the microbiome of its reproductive stages that have so far only been found in 5 other bivalve species. This will enable us to better understand the mode of transmission of the lucinid symbiont. Apart from that we seek to gain knowledge about how chemosymbiotic bivalves interact with their biotic environment and what ecological role they play in shallow marine ecosystems such as seagrass beds.

Approach/Methods: Sampling lucinids in seagrass beds, diver-operated microsensor measurements, DNA extraction, meta-transcriptome, meta-proteome and metabolic analyses

StudentSarah Zauner

Faculty: Jillian Petersen (PI)

Funding: ÖAW

© Laetitia Wilkins / Max Planck Gesellschaft