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Fig. 2 | BMC Plant Biology

Fig. 2

From: Phenotypic and genetic characterization of tomato mutants provides new insights into leaf development and its relationship to agronomic traits

Fig. 2

Characterization of the brassinolide sensitive tomato (bst) mutant. a Shoot apex-derived plants of Moneymaker (left) and bst mutant (right). Note the extremely wrinkled leaves and the profuse root system in bst mutant plants cultivated in vitro. b Greenhouse-grown plants of bst mutant showed wrinkled dark green leaves and lacked axillary branches. Inflorescences with very few flowers (yellow inset) appeared very late (4 to 5 months) and, despite several trials, only one fruit with few seeds was obtained in a plant cultivated for more than 9 months (red inset). c Stem cross sections revealed a larger size in bst pith cells, as well as a smaller number and disorganization of vascular bundles. d Longitudinal sections showed a larger diameter of the bst shoot apical meristem, due to both size and number of cells. e The bst flowers had shorter petals and sepals, a wider anther cone and a very short style. f-g The application of 24-epibrassinolide 1.0 μM every 48 h to mutant plant leaves (f) partially rescued the bst phenotype (g). Bar (a-b and e-g) = 1 cm. Bar (c-d) = 100 μm

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