Study of the influence of Magnetic Fields on Plants Tissues

0395168 - ÚPT 2014 RIV GB eng C - Konferenční příspěvek (zahraniční konf.)
Hutová, E. - Bartušek, Karel - Mikulka, J.
Study of the influence of Magnetic Fields on Plants Tissues.
PIERS 2013 Taipei Proceedings. Cambridge: The Electromagnetics Academy, 2013, s. 57-60. ISBN 978-1-934142-24-0. ISSN 1559-9450.
[The 33rd PIERS in Taipei. Progress in Electromagnetics Research Symposium. Taipei (TW), 25.03.2013-28.03.2013]
Grant CEP: GA ČR GAP102/11/0318; GA ČR GAP102/12/1104
Institucionální podpora: RVO:68081731
Klíčová slova: plants tissue * magnetic field * MRI * ansys
Kód oboru RIV: JA - Elektronika a optoelektronika, elektrotechnika

If a magnetic field may influence behavior and movement of an electrically charged particle, can this field also affect cells in living organisms? The aim of the study is to determine the dependence of the growth of plant cultures on a stationary homogeneous and a gradient magnetic field.We created nine magnetic felds of various magnetic flux density values and defined the configurations. The magnetic fields were created by ferrite and neodynium magnets. The map of magnetic fields was simulated using the finite element method in the ANSYS program and experimentally measured with a Hall probe. The plant cultures applied in this experiment were early somatic embryos (ESEs) of Picea abies (/L./Karsten, clone 2.2/2) and Pinus Engelman. These cultures were derived at the Institute of Plant Biology, Mendel University in Brno. The clusters of early somatic embryos were placed in Petri dishes; each dish contained one cluster of the ESEs. The Petri dishes were placed in the magnetic fields. We used five dishes simultaneously as the reference group and located them in the Earth's magnetic field. Within the experiment, the ambient conditions were a very important aspect; it was demonstrated that the conditions, especially the outdoor temperature and humidity, have great influence on the growth of the ESEs. The progress of growth was evaluated from 2D images of clusters in the Petri dishes, and the area of the ESEs was calculated. For better characterization of the quality of the ESEs, we used several magnetic resonance imaging (MRI) techniques with different types of contrast tomeasurea large number of slices of the ESEs. The contrast was obtained by means of the spin density (SD) method, relaxation times T1, T2, and magnetic field B0. This field characterizes the magnetic susceptibility of the plant cultures. The multi-contrast analysis of 2D images enables us to achieve better resolution of the clusters and obtain improved characterization of the plan culture growth.
Trvalý link: http://hdl.handle.net/11104/0225237