Fig. 2
From: Morphogenesis of honeybee hypopharyngeal gland during pupal development
Hypopharyngeal gland morphogenesis. a and b Macroscopic images of hypopharyngeal gland primordia (arrowheads) at pupal stage P1 (a) and of hypopharyngeal glands in a newly emerged worker bee (b; A0). Note the size difference. c-i Microscopic views of hypopharyngeal glands during pupal development (P1-P7/P8) and of a newly emerged worker bee (A0). Confocal image stacks of phalloidin-labeled glands are presented in 3D shadow mode. Asterisks, acini; thin arrows, bundle of ductules; broad arrows, collecting duct. Bars, a and b 1 mm; c-i 100 μm