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The bioelectrical potential of the leaves of a plant, Pothos (Epipremnum aureum ), was monitoredwith a potentiometer to detect environmental changes and air pollution. The bioelectrical potentialwas converted to log-log plots of power spectra of a time scale using the Fast Fourier Transform. Thedeclination of the power spectra of Pothos shifted to the high-frequency side more significantly underthe light irradiation condition than under dark conditions. The shift toward the lower level for thepower of the spectra was also confirmed under a saturated benzene atmosphere. These results areconsistent with those reported by Hasegawa et al. for Shefflera and Boston fern. Various foliage plantsmay be candidates as natural biosensors for many toxic substances.
- 福井工業高等専門学校研究紀要. 自然科学・工学
福井工業高等専門学校研究紀要. 自然科学・工学 (45), 25-29, 2011-12-00