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. 2014 Aug 25;9(8):e104424. doi: 10.1371/journal.pone.0104424

Figure 11. Double trigger mechanism for protein digestion.

Figure 11

Three control points in prey capture and digestion of Venus flytrap, which ensure effective production of digestive enzymes. For detailed description, see discussion. AP – action potential, the increase of phytohormone level is indicated by arrows: no increase (-), small (↑), moderate (↑↑), high (↑↑↑).