| Photobiological measurements of experimental corals. Bars indicate the mean and error bars indicate 1 standard error, for (A) Symbiodiniaceae density (number of cells gdw -1 ) and (B) chlorophyll a concentration (µg gdw -1 ).

| Photobiological measurements of experimental corals. Bars indicate the mean and error bars indicate 1 standard error, for (A) Symbiodiniaceae density (number of cells gdw -1 ) and (B) chlorophyll a concentration (µg gdw -1 ).

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Coral bleaching events are increasing with such frequency and intensity that many of the world’s reef-building corals are in peril. Some corals appear to be more resilient after bleaching but the mechanisms underlying their ability to recover from bleaching and persist are not fully understood. We used shotgun proteomics to compare the proteomes of...

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Context 1
... data confirmed that the bleaching treatment corals were bleached (Figure 2). Symbiodiniaceae density (number of cells gdw −1 ) decreased ∼71% in bleached corals compared to non-bleached control corals (Wilcoxon rank sum test, W = 8, p-value = 0.002756). ...
Context 2
... (PER1, PER2, PER3) that also neutralize hydrogen peroxide were detected at significantly higher abundances in both compartments from bleached corals. In coral embryos, significant upregulation of peroxidasin genes, a multi-domain peroxidase, has been observed after 48 h of thermal stress (Voolstra et al., 2009), while in adult corals it was downregulated after 11 days of thermal stress exposure ( DeSalvo et al., 2008). Here we report that peroxidases are present in an adult coral following nearly 1 month of thermal stress. ...