Ultraweak and Induced Photon Emission After Wounding of Plants
2009
The ultraweak and induced photon emission were measured by a single photon counting equipment (Photomultiplier Hamamatsu R562) on Cucurbita pepo variaca styriacae after wounding. Wounding significantly changes the emission from a stationary to a nonstationary state and the shape of the decay curve obtained after light illumination. The rise in the ultraweak photon emission depends on the kind of wounding and its localization on the plant. The decay curves obtained after wounding could be better fit by an exponential function than by a hyperbolic one. So the biophoton emission correlates with physiological and bioelectrical changes like membrane depolarizations as they also depend on the kind of injury.
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