tailieunhanh - báo cáo khoa học: " Transient effect of weak electromagnetic fields on calcium ion concentration in Arabidopsis thaliana"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Transient effect of weak electromagnetic fields on calcium ion concentration in Arabidopsis thaliana | BMC Plant Biology BioMed Central Research article Transient effect of weak electromagnetic fields on calcium ion concentration in Arabidopsis thaliana Alexander Pazur 1 and Valentina Rassadina2 Open Access Address Department Biology I Botany Ludwig Maximilians University Munich Menzinger Str. 67 D-80638 Munich Germany and institute of Biophysics and Cell Engineering National Academy of Sciences of Belarus Academicheskaya 27 Minsk 220072 Belarus Email Alexander Pazur - Valentina Rassadina - rassadina@ Corresponding author Published 30 April 2009 Received 26 November 2008 BMC Plant Biology 2009 9 47 doi 1471-2229-9-47 Accepted 30 April 2009 This article is available from http 1471-2229 9 47 2009 Pazur and Rassadina licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License http licenses by which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Abstract__ Background Weak magnetic and electromagnetic fields can influence physiological processes in animals plants and microorganisms but the underlying way of perception is poorly understood. The ion cyclotron resonance is one of the discussed mechanisms predicting biological effects for definite frequencies and intensities of electromagnetic fields possibly by affecting the physiological availability of small ions. Above all an influence on Calcium which is crucial for many life processes is in the focus of interest. We show that in Arabidopsis thaliana changes in Ca2 -concentrations can be induced by combinations of magnetic and electromagnetic fields that match Ca2 -ion cyclotron resonance conditions. Results An aequorin expressing Arabidopsis thaliana mutant Col0-l Aeq Cy was subjected to a magnetic field