Plant defense activators potentiate the generation of elicitor-responsive photon emission in rice

Induction of Defense Responses in Cucumber Plants by Using the Cell-free Filtrate of the Plant Growth-Promoting Fungus Penicillium simplicissimum GP17-2

“…Cucumber seedlings treated with CF of GP17-2 transiently generated relatively high levels of elicitor responsive photon emissions. A similar result was also obtained by Iyozumi et al 2005 23 in rice cells in response to the PGPF elicitor CF of GP17-2. These data indicate that, as with other defense responses, elicitor-responsive photon emissions are enhanced in cells showing induced resistance and can be used as an indicator of plant defense activation.…”

“…The seedlings were then transferred to petri dishes. To suppress photon emissions reported to occur from injured or activated tissues 23 , the cucumber seedlings were incubated at 25 for 3 h in the dark. After incubation, the cucumber seedlings were treated with CF of GP17-2.…”

“…Moreover, in recent years, a new type of defense-related phenomenon has been reported, in which plants generate relatively high levels of ultra-weak photon emissions in response to pathogen attack or elicitor treatment 21 23 . This pathogen/elicitor-responsive photon emission, together with the generation of excited molecules involved in the defense response, could be used as a noninvasive indicator of physiological changes 23 .…”

Photon emissions from rice cells elicited by N-acetylchitooligosaccharide are generated through phospholipid signaling in close association with the production of reactive oxygen species

“…Because photon emissions can be measured in living cells nondestructively, biophotons would be a useful tool for analyzing physiological changes in biological systems. We reported that biophotons were induced by culture filtrations of incompatible organisms such as plant growth-promoting fungi from rice leaf segments or in suspension-cultured rice cells [11]. Bennett et al [2] showed that biophoton emissions required an intact plant disease-signaling network, and were associated with hypersensitive cell death in Arabidopsis thaliana.…”

Difference in ultraweak photon emissions between sulfonylurea‐resistant and sulfonylurea‐susceptible biotypes of Scirpus juncoides following the application of a sulfonylurea herbicide

“…2002; Hakamata et al . 2004), elicitor treatment (Iyozumi et al . 2005), and insect damage (Yoshinaga et al .…”