Fig. 1From: How exposure to ALS-inhibiting gametocide tribenuron-methyl induces male sterility in rapeseedComparison of the pollen grains between the control and treated plants. a Pollen grains are round in shape in the control but malformed in the TBM-treatment (b). c Pollen grains are deep stained by the aceto-carmine in the control, while they are not stained under TBM treatment (d).Back to article page