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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


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’ address

(1)
Christian Tötzke
Helmut Tributsch
Helmholtz Centre Berlin for Materials und Energy HZB, 14109 Berlin (Germany)
(2)
Christian Tötzke
Institute of Earth and Environmental Science, University of Potsdam, 14476 Potsdam (Germany)
(3)
Jan Cermak
Nadezhda Nadezhdina
Institute of Forest Botany, Dendrology and Geobiocoenology, Mendel University, 61300 Brno (Czech Republic)
(4)
Helmut Tributsch
Present address: helmut.tributsch@alice.it

Corresponding author

 
Christian Tötzke
toetzke@uni-potsdam.de

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

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Articles citing this article

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