Relationship between the bio-electric potential and the morphogenetic properties of <i>Grifora Frondosa</i> under different light stimuli

Development of the SMA (Speaking Mushroom Approach) Environmental Control System: Automated Cultivation Control System Characterization

“…Between the electrodes exist countless cells, and each respective cell potential contributes to the total transelectrode potential measured. It is believed that the fruit body's physiological and bioelectric response to external stimulations is based on the opening and closing of ion channels in the cell walls (Hirama et al, 2002).…”

“…Their research was furthered by Hirama et al (1997;2000; who discovered the greatest bioelectric potential responses were obtained from the 400 to 500 nm wavelength range (blue LEDs). Also, a correlation was shown between light intensity and measured bioelectric potential (Hirama et al, 2002). While measuring the environmental responses, Yanagibashi et al (2003) reported that the greatest bioelectric potential was measured at a temperature range of 18°C to 22°C.…”

A putative transcription factor Gf.BMR1 in Grifola frondosa, the homolog of BMR1 in Bipolaris oryzae, was strongly induced by near-ultraviolet light and blue light

“…In Lentinula edodes (shiitake), blue light photoreceptors PHRA and PHRB, homologs of Neurospora crassa white collar (WC)-1 and WC-2, respectively, have been identified (Sano et al 2007;Sano et al 2009), andTang et al (2013) reported that these blue light photoreceptors are associated with light-induced brown film formation. In Grifola frondosa (maitake), a basidiomycetous fungus, blue light instead of longer wavelengths is a prerequisite for fruiting body differentiation; for example, pilei do not develop under red light (Hirama et al 2002). In the commercial market for edible mushrooms, pileus color is an important economic quality parameter, and it is known that NUV light can be applied to G. frondosa to forcefully darken pilei (Sato et al 1981).…”