Can I read Symbiotic Dinoflagellates Divert Energy Away from Mutualism During Coral Bleaching Recovery on EtoBox?

Symbiotic Dinoflagellates Divert Energy Away from Mutualism During Coral Bleaching Recovery by Luella Allen-Waller; Katie L. Barott is a Agricultural and Biological Sciences article available to read on EtoBox.

What is Symbiotic Dinoflagellates Divert Energy Away from Mutualism During Coral Bleaching Recovery about?

The future of coral reefs in a warming world depends on corals' ability to recover from bleaching, the loss of their symbiotic dinoflagellate algae (Symbiodiniaceae) during marine heatwaves. Heat-tolerant symbiont species can remain in symbiosis during heat stress, but often provide less photosynthate to the host than heat-sensitive species under ambient conditions. Understanding how heat stress changes the dynamics of this tradeoff between stress tolerance and mutualism contribution is crucial for predicting coral success under climate change. To test how symbiont resource allocation affects coral recovery from heat stress, we exposed the coral Montipora capitata hosting either heat-sensitive Cladocopium C31 (C) or heat-tolerant Durusdinium glynnii (D) to heat stress. D regained symbiont density and photochemical efficiency faster after heat treatment than C, but symbiont recovery did not restore coral biomass or calcification rates to pre-bleaching levels in the initial recovery period. D populations also contributed less photosynthate to the host relative to C, even during heat stress. Further, higher-density symbiont populations of both species retained more photosynthate than

Who reads Symbiotic Dinoflagellates Divert Energy Away from Mutualism During Coral Bleaching Recovery?

Author

Luella Allen-Waller; Katie L. Barott

Publisher

Springer Science and Business Media LLC

Published

2023

Language

EN

Field

Agricultural and Biological Sciences (Life Sciences)