Fig. 4: Placozoa acidify their temporary feeding groove pulsatively.
From: An ancient lysozyme in placozoans participates in acidic extracellular digestion
A Merged micrographs in brightfield and green-epifluorescence mode of Trichoplax sp. H2 feeding on zymosan particles coated with a pH-sensitive dye after 0 s and 15 s. Two feeding grooves are highlighted by dotted lines. The corresponding pH is presented next to the grooves. Scale bars: 50 μm. B Box plot of the minimum recorded pH (closed diamonds) of digestive events (n = 22). The open square shows the mean, the horizontal line represents the median.
