Fig. 5
From: How exposure to ALS-inhibiting gametocide tribenuron-methyl induces male sterility in rapeseed
Comparison of chloroplasts and tapetal plastids between the control and treated plants. a The mesophyll cell chloroplasts of the control contain grana and thylakoid membranes. b Chloroplasts in the anther epidermis of the control contain thylakoid membranes and starch granules. c The magnified structures of the tapetum show normal elaioplasts with plastoglobuli accumulated. d The chloroplasts in the treated plants are flat and undeveloped. e Abnormal chloroplasts in the anther epidermis of the treated plants without grana stacks. f The malformed structure and defective organelles, including plastids, in the TBM-treated tapetum. Abbreviation: El, elaioplast. Scale bar = 2 μm