On the mechanism of trap closure of Venus flytrap (Dionaea muscipula Ellis)

@article{Hodick2004OnTM,
  title={On the mechanism of trap closure of Venus flytrap (Dionaea muscipula Ellis)},
  author={D. Hodick and A. Sievers},
  journal={Planta},
  year={2004},
  volume={179},
  pages={32-42}
}
The rapid trap closure of Dionaea muscinula Ellis has been explained by either a loss of turgor pressure of the upper epidermis, which should thus become flexible, or by a sudden acid-induced wall loosening of the motor cells. According to our experiments both explanations are doubtful. Objections against the turgor mechanism come from the determination by extracellular measurements from the upper epidermis of action-potential amplitudes before and after trap closure. Neither time course nor… Expand
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