Radiation Detection & Dosimetry Using Plant Electrical Potential and Optical Spectra

Transcription

1 Radiation Detection & Dosimetry Using Plant Electrical Potential and Optical Spectra Douglas Janssen 1, Mohammad Islam 2, Wenze Xi 3, David J. Y. Feng 4, Joshua Lay 2, Jerry Gu 5, Fow-Sen Choa 2 1 Greater Grace Christian Academy, 6063 Moravia Park Drive, Baltimore, MD 21206, USA 2 University of Maryland Baltimore County, Dept. of CSEE, 1000 Hilltop Circle, Baltimore, MD Thomas Jefferson National Lab, Newport News, Virginia USA 4 Department of Electrical Engineering, National University of Kaohsiung, Kaohsiung, 811 Taiwan 5 Marriotts Ridge High School, Woodford Drive, Marriottsville, MD 21104, USA choa@umbc.edu

2 Previous Work in Plant Electrophysiology Mid-IR laser stimulation of Dionaea muscipula (Venus fly trap) D. Eisen, D. Janssen, X. Chen, F-S. Choa, D. Kostov, and J. Fan, Trap Closure of Venus Flytrap via Mid-IR Stimulation, Biomedical Engineering Society Annual Meeting, paper:p-sat-b-29, Atlanta, GA, Oct , > Multi-wavelength study, laser stimulation of insect and annelid nervous systems. Optical power dependence of system potential spiking in black soldier fly Hermetia illucens.

3 Previous Work in Plant Electrophysiology Laser stimulation of plant vascular tissue caused system potential changes. Below: 820nm laser illumination, 120 mw, targeting xylem tissue of Acer negundo. Physical / chemical stimuli are known to initiate transient changes in biopotential. Some plants exhibit wavelength and temperature-dependent response. Above: System potential changes in Schefflera arboricola when isopropyl alcohol is added to leaf along conduction pathway.

4 Research Motivations 1. Plant photosynthetic processes and associated pigments are sensitive to radioactivity. Before After

5 Research Motivations 2. Changes in plant pigments, such as the ratio of chlorophyll a / b, may be key natural indicators for environmental radiation hazards.

6 Research Motivations 3. Measuring changes in plant electrophysiology, such as changes in system potential and current, can provide evidence for specific environmental hazards.

7 Please visit poster # 37 References [1] Burdon-Sanderson J. Note on the electrical phenomena which accompany irritation of the leaf of Dionaea muscipula. Proc R Soc. Lond (1873);21: [2] Arabidopsis Genome Initiative. Analysis of the genome sequence of the flowering plant Arabidopsis thaliana. Nature, 408, (2000). doi: / [3]Islam, M., Wenze Xi, David J. Y. Feng, Fow-Sen Choa; The electrical response of plants under radiation. Proc. SPIE 9073, Chemical, Biological, Radiological, Nuclear, & Explosives Sensing XV (2014) [4] Volkov AG, editor. Plant electrophysiology. Berlin: Springer; [5] D.S. Fensom, The bioelectric potentials of plants and their functional significance: Some daily and seasonal changes in the electrical potential and resistance of living trees, Can. J. Bot. 41 (1963) [6] P. Morat, J.-L. Le Moue l, A. Granier, Electrical potential on a tree. A measurement of the sap flow? C.R. Acad. Sci. Paris 317 (1994) [7] Opritov V.A., Retivin V.G., On the mechanism of propagating excitation in higher plant,. Fiziol Rast 29: , 1982 [8] D. Eisen, D. Janssen, X. Chen, F-S. Choa, D. Kostov, and J. Fan, Trap Closure of Venus Flytrap via Mid-IR Stimulation, SPIE Photonics West, San Francisco, California, 2-7 Feb [9] Janssen, D., Islam, M., Chao, D., Gu, J., Eisen, D., Fow-Sen Choa, Electricity Derived from Plants, (in publication) [10] Hartman E, Influence of light on the bioelectric potential of the bean (Phaseolus vulgaris) hypocotyl hook, Physiol Plant, 33: , [11] Dominique Gibert, Jean-Louis Le Moue, Luc Lambs, Florence Nicollin, Frederic Perrier, Sap flow and daily electric potential variations in a tree trunk, Plant Science, 171, p , [12] Blackburn, G.A., Spectral indices for estimating photosynthetic pigment concentrations: a test using senescent tree leaves, Int. Journal of Remote Sensing, (1998), 19, 4, [13] Hashimoto et al., X-Ray fluorescent and mid-infrared spectroscopic analysis of tomato leaves, Proc. SICE-ICASE Int l Joint Conference, Busan, Korea, Oct [14] Jovanic, B.R., Radenkovic, B., Despotovic-Zrakic, M., Bogdanovic, Z., Panic, B., Impact of nuclear radiation on plants photosynthesis and chlorophyll content after bombing with U238 enriched bombs., American-Eurasian Journal of Sustainable Agriculture, 6, 1, (2012) This material is based upon work supported by the National Science Foundation under Grant No. EEC