Chin Bull Bot ›› 2015, Vol. 50 ›› Issue (6): 765-767.doi: 10.11983/CBB15178

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  • Received:2015-10-03 Accepted:2015-11-01 Online:2015-09-06 Published:2015-11-01
  • About author:? These authors contributed equally to this paper

Figure 1

The formation of schizogenous space of resin duct in stem of Pinus massoniana (Li et al., 2004).(A) Showing initial cell stage of resin duct with large nucleus and dense cytoplasm; (B) Showing intercellular space-forming stage, the middle lamellar of central cells of resin duct dissolved to form intercellular space; (C) Showing intercellular space-expending stage, the middle lamellar of central cells continued to dissolve and surrounding cells are intrusive growth to enlarge intercellular space; (D) Showing mature resin duct with 1 layer of functional epithelial cells and 2–3 layers of sheath cells around the outside of epithelial cells."

Figure 2

The formation of lysigenous space of secretory cavity in leaves of Dictamnusdasycarpus (Zhou et al., 2014)(A) Showing initial cells stage of secretory cavity with large nucleus and dense cytoplasm; (B) Showing differentiation stage of secretory cell, a central cell of secretory cavity is characterized by evident vacuolization, broken nuclear membranes, and disorganized cytoplasm; (C) Showing degeneration stage of secretory cell, the central cell of secretory cavity is apoptosis and broken, and the lumen is formed; (D) Showing mature secretory cavity with 1 layer of functional epithelial cells and 2–3 layers of sheath cells around the outside of epithelial cells."

Figure 3

The formation of schizolysigenous space of secretory cavity in fruit of Citrus (Chen and Wu, 2010; Liu et al., 2012)(A) Showing initial cells stage of secretory cavity with large nucleus and dense cytoplasm; (B) Showing intercellular space- forming stage (differentiation stage of secretory cell), the middle lamellar of central cells of secretory cavity dissolved to form intercellular space, in the meantime, the central cells are characterized by evident vacuolization, broken nuclear membranes, and disorganized cytoplasm; (C) Showing intercellular space-expending stage (degenerating stage of secretory cell), the middle lamellar of central cells of secretory cavity continued to dissolve and the surrounded cells were intrusive growth to enlarge the intercellular space, meanwhile the central cells are apoptosis and broken, the lumen is further enlarged; (D) Showing mature secretory cavity with 1 layer of functional epithelial cells and 2–3 layers of sheath cells around the outside of epithelial cells."

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