Ultrastructural localization of tyrosinase in the tardigrade cuticle.
Tyrosinase activity has been demonstrated ultra-structurally in the cuticle of the eutardigrade Macrobiotus hufelandi. The enzyme could be localized in the outer layer (=epicuticle) of the integument. A weak deposition of reaction product was also seen in the cytoplasm of storage cells, free floating in the haemolymph.
Volkmann
A
A
Institut für Zoologie, Morphologie und Zellbiologie, Heinrich-Heine-Universität Düsseldorf, Universitätsstrabetae 1, D(W)-4000 Düsseldorf 1, Germany.
Greven
H
H