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Table 1 Cellular sites of CPT accumulation in cross sections (about 5 mm in length) through the midrib of a leaf

From: Cell-specific expression of tryptophan decarboxylase and 10-hydroxygeraniol oxidoreductase, key genes involved in camptothecin biosynthesis in Camptotheca acuminata Decne (Nyssaceae)

   1-month-old
plantlet
2-month-old
plantlet
3-month-old
plantlet
3-month-old plantlet
(drought-stress)
Mature plant
EIs Tot 230 ± 9.01 223 ± 11.24 190 ± 7.03 190 ± 8.16 103 ± 4.26
  N 32.81 ± 0.22 (a) 29.20 ± 0.61 (b) 19.93 ± 0.36 (c) 21.10 ± 0.23 (c) 7.51 ± 0.39 (e)
GTs Tot 12.31 ± 1.12 8.96 ± 1.21 6.98 ± 1.95 9.01 ± 1.43 4.12 ± 2.33
  N 3.22 ± 1.14 (a) 1.87 ± 1.05 (b) 1.26 ± 1.83 (c) 2.01 ± 1.25 (d) 0.54 ± 1.98 (e)
GICs N 3.02 ± 1.21 (a) 2.23 ± 1.10 (b) 1.43 ± 0.82 (c) 1.17 ± 0.67 (c) 0.42 ± 0.32 (e)
  1. (N) average number of cells or trichomes accumulating CPT per section; (Tot) average number of cells or trichomes per section. Different letters indicate statistically significant differences (P ≤ 0.05) between values. (EC) epidermal cells; (GT) glandular trichomes; (IC) idioblast cells accumulating CPT.