Alimentary studies on the Collembolan Paratullbergia callipygos using transmission electron microscopy

The food diet of the endogenous Collembolan Paratullbergia callipygos was studied in an oak stand on an acid mull humus. Transmission electron microscopy was used, parallel with light microscopy, in order to ascertain the effect of soil-dwelling Collembola upon plant materials and some other food substrates. Plant cell walls proved to be severely damaged when passing through the midgut after they have been broken up by mandibles, unless they were protected by coatings of tannins. This species was able to degrade cellulose, the process varying according to the type of cellulose. Degradation of other substrates, such as starch, tannins, fungal cytoplasm and chitin also occurred.