Transmission Electron Micrographs of cells of Prunus avium leaf
(1) stomata

Part of a cross section in leaf showing a stoma with its two guard cells (cg1 et cg2) and epidermis (epid) adjacent to the stomata. Under the epidermis parenchyma cells with large, central vacuole (v) and the chloroplasts against the wall (red arrows).

Stonmate Feuille Merisier

Two guard cells at higher magnification with the different organelles: the vacuole (v), the nucleus (N) and the chloroplasts (red arrows). CSS : sub stomatal chamber.
A guard cell with the different organelles: the vacuoles (v), the chloroplasts (chl) containing starch grains (a) and the mitochondria (m)