Symbionts out of sync: Decoupled physiological responses are widespread and ecologically important in lichen associations.

ABSTRACT: A core vulnerability in symbioses is the need for coordination between the symbiotic partners, which are often assumed to be closely physiologically integrated. We critically re-examine this assumed integration between symbionts in lichen symbioses, recovering a long overlooked yet fundamental physiological asymmetry in carbon balance. We examine the physiological, ecological, and transcriptional basis of this asymmetry in the lichen Evernia mesomorpha. This carbon balance asymmetry depends on hydration source and aligns with climatic range limits. Differences in gene expression across the E. mesomorpha symbiosis suggest that the physiologies of the primary lichen symbionts are decoupled. Furthermore, we use gas exchange data to show that asymmetries in carbon balance are wid

SUBMITTER: Meyer AR 

PROVIDER: S-EPMC11177896 | biostudies-literature | 2024 Jun

REPOSITORIES: biostudies-literature