Pulse-Chase Labeled S-phase Cells in Trophosome Region Cross Sections.

Bright field micrographs of 30 min BrdU pulse and 120 h chase immuno-labeled P. galateia trophosome region cross sections. All sections were counterstained with methylene blue (blue). (A) BrdU-labeled cells (brown) were distributed in all regions of the section including the trophosome (arrowhead). (B) Detailed micrograph of BrdU-labeled bacteriocyte (asterisk, surrounded by a dashed line) and labeled epidermal cells (arrowhead). (C) Other BrdU-labeled cell types between the bacteriocytes. Scale bars in (A) 50 µm, (B) and (C) 10 µm.