Whilst The physiological system of associative learning in vegetation is not really acknowledged, Telewski et al. describes a speculation that describes photoreception as the basis of mechano-notion in vegetation.[100] One particular system for mechano-perception in plants depends on MS ion channels and calcium channels. Mechanosensory proteins in cell lipid bilayers, http://shop.ororo.co.kr/bbs/board.php?bo_table=free&wr_id=4740377