Plants lack specialized acoustic organs, but their rigid cell walls and plasma membranes are embedded with Mechanosensitive Ion Channels (MSL & MCA). Sound waves traveling through air create periodic pressure variations (Sound Pressure Level in dB SPL) that induce micro-strains (µε) across cellular membranes.
When acoustic vibrations match cellular resonant frequencies (~200–300 Hz), mechanosensitive channel open probabilities increase, triggering a cytosolic Ca²⁺ influx. This calcium signaling cascade accelerates actin-myosin motility, boosting cytoplasmic streaming velocity and promoting organelle transport required for cell division and growth. Excessive decibel levels (>95 dB SPL) cause mechanical over-stretching, disrupting streaming and inducing acoustic stress response.
In the simulator, incident sound waves create oscillatory pressure across plant cell walls. A Gaussian resonance peak centered at two hundred fifty hertz determines the mechanical strain transferred to the membrane. Membrane strain drives the sigmoidal activation of mechanosensitive ion channels. When channel probability rises, calcium entry accelerates cytoplasmic streaming and organelle transport. Selecting the Green Vibration preset sets frequency to two hundred fifty hertz at seventy-five decibels, driving micro-strain to four hundred twenty-two microstrain and streaming velocity to over eighteen micrometers per second.