Metabolic interdependence and rewiring in radiolaria-microalgae photosymbioses.

ABSTRACT: Marine planktonic Radiolaria harboring symbiotic microalgae are ubiquitous in the oceans and abundant in oligotrophic areas. In these low-nutrient environments, they are among the most important primary producers. Systematic studies of radiolarian biology are limited because radiolaria are non-culturable and prone to damage during sampling. To obtain insight into the mechanistic basis of radiolarian photosymbiosis, we address here the metabolic contributions of the partners to the performance of the holobiont. Therefore, we describe the metabolic inventory of two highly abundant photosymbiotic radiolaria-colony-forming Collodaria and single-celled Acantharia and compare their metabolomes to metabolomes of respective free-living algae. Most of the metabolites detected in the symbiosis are n

SUBMITTER: Nikitashina V 

PROVIDER: S-EPMC11965087 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature