Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 1 of 1
Full-Text Articles in Environmental Sciences
Thicker Host Tissues Moderate Light Stress In A Cnidarian Endosymbiont, James L. Dimond, Benjamin J. Holzman, Brian L. Bingham
Thicker Host Tissues Moderate Light Stress In A Cnidarian Endosymbiont, James L. Dimond, Benjamin J. Holzman, Brian L. Bingham
Brian L. Bingham
The susceptibility of algal-cnidarian holobionts to environmental stress is dependent on attributes of both host and symbiont, but the role of the host is often unclear. We examined the influence of the host on symbiont light stress, comparing the photophysiology of the chlorophyte symbiont Elliptochloris marina in two species of sea anemones in the genus Anthopleura. After 3 months of acclimation in outdoor tanks, polyp photoprotective contraction behavior was similar between the two host species, but photochemical efficiency was 1.5 times higher in A. xanthogrammica than in A. elegantissima. Maximum relative electron transport rates, derived from rapid light curves, were …