Fig. 4
From: Compositional homogeneity in the pathobiome of a new, slow-spreading coral disease
Histological cross-section (a) highlighting the sharp demarcation between apparently healthy tissue (AHT), the GPD lesion interface (dashed green line) and the cyanobacterial mat (CM) or biofilm. Rectangles depict positions of panels (b–d). b Arrows highlight cyanobacteria penetrating into the otherwise apparently healthy tissue. c Fungal hyphae regularly observed at the lesion interface. d Arrows indicate necrotic Symbiodiniaceae at the disease lesion interface. Scale bars are 25 μm