biostudies-literatureUnknown10(1)McIlroy SE<h4>Background</h4>Symbionts provide a variety of reproductive, nutritional, and defensive resources to their hosts, but those resources can vary depending on symbiont community composition. As genetic techniques open our eyes to the breadth of symbiont diversity within myriad microbiomes, symbiosis research has begun to consider what ecological mechanisms affect the identity and relative abundance of symbiont species and how this community structure impacts resource exchange among partners. Here, we manipulated the in hospite density and relative ratio of two species of coral endosymbionts (Symbiodinium microadriaticum and Breviolum minutum) and used stable isotope enrichment to trace nutrient exchange with the host, Briareum asbestinum.<h4>Results</h4>The patterns of uptake and translocaMicrobiome192https://www.ebi.ac.uk/biostudies/studies/S-EPMC9639324biostudies-literatureNutrient dynamics in coral symbiosis depend on both the relative and absolute abundance of Symbiodiniaceae species.PMC9639324Teece MCoffroth MAterHorst CPMcIlroy SEfalseNutrient dynamics in coral symbiosis depend on both the relative and absolute abundance of Symbiodiniaceae species.<h4>Background</h4>Symbionts provide a variety of reproductive, nutritional, and defensive resources to their hosts, but those resources can vary depending on symbiont community composition. As genetic techniques open our eyes to the breadth of symbiont diversity within myriad microbiomes, symbiosis research has begun to consider what ecological mechanisms affect the identity and relative abundance of symbiont species and how this community structure impacts resource exchange among partners. Here, we manipulated the in hospite density and relative ratio of two species of coral endosymbionts (Symbiodinium microadriaticum and Breviolum minutum) and used stable isotope enrichment to trace nutrient exchange with the host, Briareum asbestinum.<h4>Results</h4>The patterns of uptake and transloca2022-01-01T00:00:00Z2022 Nov2025-06-01T03:30:33.055Z2025-06-01T03:30:33.055ZS-EPMC96393243633668610.1186/s40168-022-01382-0