Update on the Effects of Sound Wave on Plants

Abstract

Plant growth is considered the sum of cell proliferation and subsequent elongation of the cells. The continuous proliferation and elongation of plant cells are vital to the production of new organs, which have a significant impact on overall plant growth. Accordingly, the relationship between environmental stimuli, such as temperature, light, wind, and sound waves to plant growth is of great interest in studies of plant development. Sound waves can have negative or positive effects on plant growth. In this review paper we have summarized the relationship between sound waves and plant growth response. Sound waves with specific frequencies and intensities can have positive effects on various plant biological indices including seed germination, root elongation, plant height, callus growth, cell cycling, signaling transduction systems, enzymatic and hormonal activities, and gene expression.

Beyond Chemical Triggers: Evidence for Sound-Evoked Physiological Reactions in Plants

“…Therefore, studies involving the use of sound as a trigger have been recognized as fringe science. However, recent findings using cutting-edge technology, quality control for hertz and decibel levels, and the integration of big data have helped change the viewpoint about this field as it has entered the realm of generally accepted science ( Gagliano et al, 2012 ; Chowdhury et al, 2014 ; Mishra et al, 2016 ). We now believe that plants can indeed benefit from sound through their mechanosensory machinery.…”

Impact of sound irradiation on chlorella vulgaris cell metabolism

“…Thus, irradiation with a frequency of 0.1-2 kHz, loudness of 100 dB increases the permeability of membranes, improves the activity of protective enzymes and cell division rate. The biomass growth raises by 6-30 % depending on the frequency applied [7,8]. In [8,9], it is found that both sound and ultrasound irradiation increase the active transport rate in plant cells as a result of increased activity of membrane Н + -ATPase under the high content of Ca 2+ ions in the cytoplasm.…”

“…Sound spectrum irradiation also has a stimulating effect on the cells of higher plants [7][8][9]. Thus, irradiation with a frequency of 0.1-2 kHz, loudness of 100 dB increases the permeability of membranes, improves the activity of protective enzymes and cell division rate.…”

Influence of Acoustic Waves on the Shelf Life Quality of White Oyster Mushroom (Pleurotus Florida)

“…Many studies proved that acoustic waves are an external factor that has a great impact on the biological index of plants and can either promote or suppress growth [15]. On the other hand, only a few studies were made regarding the application of acoustic waves in the storage of the perishable crops.…”