Biophysical Methods of Ecological Monitoring. Photosynthetic characteristics of tree plants growing in Moscow city

• Published in: Biophysics (Oxford) Vol. 58; no. 2; pp. 228 - 233
• Main Authors: Ptushenko, V. V., Karavaev, V. A., Solntsev, M. K., Tikhonov, A. N.
• Format: Journal Article
• Language: English
• Published: Dordrecht SP MAIK Nauka/Interperiodica 01-03-2013; Springer Nature B.V
• Subjects: Biological and Medical Physics; Biophysics; Chlorophyll; Complex Systems Biophysics; Environmental monitoring; Fluorescence; Photosynthesis; Physics; Physics and Astronomy; Plant ecology; Moscow Russia; slow induction of fluorescence; thermoluminescence; EPR; ecological monitoring; leaves of higher plants
• ISSN: 0006-3509; 1555-6654
• DOI: 10.1134/S0006350913020152

In this work, we studied the influence of ecological factors (distance from thoroughfares) on photosynthetic characteristics of leaves of four tree species growing in Moscow city. Photosynthetic activity of leaves was assayed by instrumental methods of probing the functional state of the photosynthetic apparatus, using electron paramagnetic resonance for measuring the kinetics of photooxidation of P
700
centers, thermoluminescence, and slow induction of chlorophyll fluorescence. It has been shown that the kinetic parameters of the induction curves, as determined from the kinetics of P
700
photooxidation and slow fluorescence induction in dark-adapted leaves, are sensitive to variations of plant growth conditions. These parameters can be used as informative characteristics in ecological monitoring.