The contractile vacuole pore is encircled on its cytosolic surface with microtubules. Other microtubules arise from these encircling microtubules and extend far out into the cell where they provide st...

A single slice through the middle of a tomographic reconstruction of Purkinje cell spines from rat cerebellum, labeled for F-actin by photoconvertable phalloidin. For more information, see: Capani F;...