Figure 3

Phospholipid-derived fatty acid (PLFA) profiles and total percentages of bacteria-specific, sponge-specific, and unspecific PLFAs of deep-sea sponges. Bacteria-specific (red), sponge-specific (blue), and unspecific PLFAs (grey) are shown for (A) Geodia barretti (n = 11), (B) Hymedesmia paupertas (n = 7), and (C) Vazella pourtalesii (n = 6). Values are presented as mean (± SD) percentages of the total PLFA content. Stacked bars depict the total relative contributions of bacteria-specific (red), sponge-specific (blue), and unspecific (grey) PLFAs for each species. HMA high microbial abundance, LMA low microbial abundance.