Fig. 9.

Ultrastructure of callus cells. a Oval and cup-like plastids in vicinity of lipid bodies and ER (asterisk). b Plastids with internal membranes (black arrow) and plastoglobuli (white arrow) connected with mitochondria (asterisks). c Plastid matrix with system of internal membranes (black arrows) and plastoglobuli (white arrow), vesicles building into plasmalemma (asterisks). d Magnification of c. e Lipid bodies connected with the expanded system of ER profiles, also in connection with plasmalemma (arrow), multivesicular body close to and vesicles building into the plasmalemma. f Profiles of ER close to or being in contact with plasmalemma (asterisks), well-developed dictyosomes surrounded vesicles (cw cell wall, d dictyosome, ER endoplasmic reticulum, l lipid body, m mitochondrion, mvl multivesicular body, pl plasmalemma, va vacuole)