Fig. 1From: Variation and asymmetry in host-symbiont dependence in a microbial symbiosisReaction norms for host growth rate (day− 1) in response to light (μE m− 2 s− 1), for both symbiotic (green) and aposymbiotic (open) hosts, with fitted models (mean growth for aposymbiotic, non-linear regression for symbiotic). Each panel shows data for a different strain. Dotted line indicates where host growth equals zeroBack to article page