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SIMS study of the calcium-deprivation step related to epidermal meristem production induced in flax by cold shock or radiation from a GSM telephone

Tafforeau, Marc; Verdus, Marie-Claire; Norris, Vic; White, Glenn; Demarty, Maurice; Thellier, Michel and Ripoll, Camille (2002). SIMS study of the calcium-deprivation step related to epidermal meristem production induced in flax by cold shock or radiation from a GSM telephone. Journal of Trace and Microprobe Techniques, 20(4) pp. 611–623.

DOI (Digital Object Identifier) Link: http://dx.doi.org/10.1081/TMA-120015622
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Abstract

Exposing seedlings of the flax, Linum usitatissimum L., to a variety of weak environmental stresses plus a 2-day calcium deprivation triggers the common response of production of epidermal meristems in the hypocotyl. Here, we show that the same response was induced by a 1 min cold shock. Epidermal meristem production was also induced by a single 2-h exposure to radiation emitted at 0.9 GHz at non-thermal levels by a GSM telephone. This flax-based system is therefore well suited to studying the effects of low intensity stimuli, including those of electromagnetic radiation. To begin to determine the underlying mechanisms, in which calcium is implicated, it is desirable to analyse the changes in ions in the tissues affected. We therefore performed a Secondary Ion Mass Spectrometry (SIMS) study of the distribution of the main inorganic cations in the hypocotyl of control and calcium-deprived seedlings. This showed decreases in calcium, sodium and potassium and an increase in magnesium that did not alter substantially the overall ratio of divalent to monovalent cations.

Item Type: Journal Article
Copyright Holders: 2002 Marcel Dekker, Inc.
ISSN: 0733-4680
Keywords: cold shock; GSM telephone radiation, microwaves; calcium; inorganic ions; SIMS; meristems; flax; plants
Academic Unit/Department: Science > Physical Sciences
Interdisciplinary Research Centre: Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)
Item ID: 32681
Depositing User: Glenn White
Date Deposited: 23 Feb 2012 10:35
Last Modified: 28 Feb 2012 19:01
URI: http://oro.open.ac.uk/id/eprint/32681
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