A novel and dual digestive symbiosis scales up the nutrition and immune system of the holobiont Rimicaris exoculata.

ABSTRACT:

Background

In deep-sea hydrothermal vent areas, deprived of light, most animals rely on chemosynthetic symbionts for their nutrition. These symbionts may be located on their cuticle, inside modified organs, or in specialized cells. Nonetheless, many of these animals have an open and functional digestive tract. The vent shrimp Rimicaris exoculata is fueled mainly by its gill chamber symbionts, but also has a complete digestive system with symbionts. These are found in the shrimp foregut and midgut, but their roles remain unknown. We used genome-resolved metagenomics on separate foregut and midgut samples, taken from specimens living at three contrasted sites along the Mid-Atlantic Ridge (TAG, Rainbow, and Snake Pit) to reveal their genetic potential.

Results

We reconstructed

SUBMITTER: Aube J 

PROVIDER: S-EPMC9636832 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature