The kidney contains macula densa cells (green/yellow), which orchestrate kidney regeneration. The circulating plasma is labeled white/gray, and all kidney cells are labeled by their production of ...

Stem apices of Anacharis densa were fixed, sectioned at 40 g, and stained in Feulgen and in ruthenium red. The three-dimensional shapes of 400 cells in various stages of division in the interior of ...