17 June 1993 Plant bioelectric response to local laser irradiation
Author Affiliations +
Proceedings Volume 1922, Laser Study of Macroscopic Biosystems; (1993) https://doi.org/10.1117/12.146172
Event: Laser Spectroscopy of Biomolecules: 4th International Conference on Laser Applications in Life Sciences, 1992, Jyvaskyla, Finland
The phenomenon of pulse alteration of bioelectric potential difference (BEPD) U(Beta ) approximately 10 mV between the top and the base of a plant is observed when a leaf is irradiated locally by a low intensity laser beam ((lambda) equals 632.8 nm, W approximately 40 mW/cm2). This effect is absent completely if an infrared laser ((lambda) equals 828.3 nm, W approximately 40 mW/cm2) is used for irradiation. There exists a threshold value of the background illumination below which U(Beta ) equals 0. The speed of U(Beta ) propagation from the irradiated zone along the axes plant organs is around 8 mm/sec. We observed the effect of U(Beta ) transmission from the irradiated two weeks plant cucumber to a nonirradiated one, if the plant roots are contacting in the soil. We observed also the complex periodic BEPD response to the periodic local laser irradiation.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yury H. Shogenov, Yury H. Shogenov, Yuri A. Romanovsky, Yuri A. Romanovsky, } "Plant bioelectric response to local laser irradiation", Proc. SPIE 1922, Laser Study of Macroscopic Biosystems, (17 June 1993); doi: 10.1117/12.146172; https://doi.org/10.1117/12.146172

Back to Top