Fig. 3

Cytological changes in trichomes during leaf development in S. ferganica. a–c, g–i Longitudinal sections of the true leaf primordia between two cotyledons. d–f, j–l Local enlarged images showing the trichome cell development (corresponding to images in boxes marked in a–c and g–i, respectively). a, d Germination for 24 h; b, e 36 h; c, f 40 h; g, j 45 h; h, k 54 h; i, l 120 h. Scale bar: a–c, g, h, 100 μm; d–f, j, 10 μm; i, 1000 μm; k, 20 μm; l, 500 μm. EC: epidermal cell; CC: cotyledon cell; M1: mesophyll; TC: trichome cell; L: leaf; T: mature trichomes; SSL: salt-storage layer