Cellular traits regulate fluorescence-based light-response phenotypes of coral photosymbionts living in-hospite.

ABSTRACT: Diversity across algal family Symbiodiniaceae contributes to the environmental resilience of certain coral species. Chlorophyll-a fluorescence measurements are frequently used to determine symbiont health and resilience, but more work is needed to refine these tools and establish how they relate to underlying cellular traits. We examined trait diversity in symbionts from the generas Cladocopium and Durusdinium, collected from 12 aquacultured coral species. Photophysiological metrics (Φ_PSII, σ_PSII, ρ, τ₁, τ₂, antenna bed quenching, non-photochemical quenching, and qP) were assessed using a prototype multi-spectral fluorometer over a variable light protocol which yielded a total of 1,360 individual metrics. Photophysiological m

SUBMITTER: McQuagge A 

PROVIDER: S-EPMC10598705 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature