Electrochemical in-situ studies of solar mediated oxygen transport and turnover dynamics in a tree trunk of Tilia cordata
Christian Tötzke (1-2) , Jan Cermak (3), Nadezhda Nadezhdina (3), Helmut Tributsch (1-4)
iForest - Biogeosciences and Forestry, Volume 10, Issue 2, Pages 355-361 (2017)
doi: https://doi.org/10.3832/ifor1681-010
Published: Mar 07, 2017 - Copyright © 2017 SISEF
Research Articles
Abstract
Platinum electrodes were implanted into the xylem of a lime tree (Tilia cordata) stem and solar-induced electrochemical potential differences of up to 120 mV were measured during the vegetative period and up to 30 mV in winter. The time dependent curves were found to be delayed with respect to solar radiation, sap flow activity, temperature and vapor pressure deficit. A general equation for the potential difference was derived and simplified by analyzing the effect of temperature and tensile strength. The potential determining influence of oxygen concentration on the respective location of the platinum electrode was identified as the principal phenomenon measured. A systematic analysis and investigation of the observed periodic oxygen concentration signals promises new information on sap flow, oxygen diffusion through tree tissues and on oxygen consumption related to the energy turnover in tree tissues.
Keywords
Tree Stems, Oxygen Transport, Xylem, Sap Flow, Tree Metabolism, Electrical Potential
Authors’ Info
Authors’ address
Helmut Tributsch
Helmholtz Centre Berlin for Materials und Energy HZB, 14109 Berlin (Germany)
Institute of Earth and Environmental Science, University of Potsdam, 14476 Potsdam (Germany)
Nadezhda Nadezhdina
Institute of Forest Botany, Dendrology and Geobiocoenology, Mendel University, 61300 Brno (Czech Republic)
Present address: helmut.tributsch@alice.it
Corresponding author
Paper Info
Citation
Tötzke C, Cermak J, Nadezhdina N, Tributsch H (2017). Electrochemical in-situ studies of solar mediated oxygen transport and turnover dynamics in a tree trunk of Tilia cordata. iForest 10: 355-361. - doi: 10.3832/ifor1681-010
Academic Editor
Tamir Klein
Paper history
Received: Apr 18, 2015
Accepted: Feb 01, 2017
First online: Mar 07, 2017
Publication Date: Apr 30, 2017
Publication Time: 1.13 months
Copyright Information
© SISEF - The Italian Society of Silviculture and Forest Ecology 2017
Open Access
This article is distributed under the terms of the Creative Commons Attribution-Non Commercial 4.0 International (https://creativecommons.org/licenses/by-nc/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
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References
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