Figure 2From: Diversity and abundance of photosynthetic sponges in temperate Western AustraliaSymbiont in Hippospongia sp. a) TEM analysis for Hippospongia sp. showing cyanobacterial symbionts belonging to the "Candidatus Synechococcus spongiarum" clade as single cells and during division (bf = binary fission), scale bar = 1 μm. b) TEM showing two symbionts with thylakoid spirals (indicated by arrow), scale bar = 200 nm.Back to article page