To study the effects of 900 MHzcell phoneexposure on root formation in mung bean hypocotyls (stem of a germinating seedling, found below the seed leaves and above the root), a model system for rhizogenesis in plants.
16 glass vials (each containing five hypocotyls) were used for each exposure condition (including control). Each experiment (exposure condition) was repeated for three times. After the exposure, the hypocotyls were transferred into a growth chamber for seven days. For each enzymatic/biochemical analysis, there were five replicated tissue samples.
Distance between exposed object and exposure source
with 2 mm thick aluminum sheets shielded 47.5 cm x 27 cm x 17.5 cm chamber
two cell phones placed along the chamber's walls; 12 glass vials containing the hypocotyls positioned between them (according to the figure in the article); constant temperature of 25 +/- 1°C inside the chamber