Minouflet, Marion Ayrault, Sophie Badot, Pierre-Marie Cotelle, Sylvie Ferard, Jean-François
Since the parallel exposure in a non-shielding and a shielding cage also revealed significant differences in MCN frequencies (the latter showing no significant differences from laboratory controls), the clastogenic effects are clearly attributable to the short-wave radiation from the antennae.Īssessment of the genotoxicity of 137Cs radiation using Vicia-micronucleus, Tradescantia-micronucleus and Tradescantia-stamen-hair mutation bioassays. The results at all exposure sites except one were statistically significant. Higher MCN frequencies than in laboratory controls were found for all exposure sites in the immediate vicinity of the antennae, where the exposure standards of the electric field strength of the International Radiation Protection Association (IRPA) were exceeded. Laboratory controls were maintained for comparison. The exposure at both sides of the slewable curtain antenna was performed simultaneously within cages, one of the Faraday type shielding the field and one non-shielding mesh cage. Plant cuttings bearing young flower buds were exposed (30 h) on both sides of a slewable curtain antenna (300/500 kW, 40-170 V/m) and 15 m (90 V/m) and 30 m (70 V/m) distant from a vertical cage antenna (100 kW) as well as at the neighbors living near the broadcasting station (200 m, 1-3 V/m). We used the Tradescantia-micronucleus (Trad-MCN) bioassay in an in situ experiment to find out whether short-wave electromagnetic fields used for broadcasting (10-21 MHz) may show genotoxic effects. The clastogenicity of electromagnetic fields (EMF) has so far been studied only under laboratory conditions. Haider, T Knasmueller, S Kundi, M Haider, M PMID:28781555Ĭlastogenic effects of radiofrequency radiations on chromosomes of Tradescantia. Furthermore, we present illustrations, comments, distribution maps, and identification keys for the studied taxa. crassula, and designation of a lectotype for T.
boliviana, correct the typification of T. valida), the description of a new taxon (i.e. Tradescantia boliviana), the rediscovery of a species exclusively known from the cultivated type collection (i.e. Sakuragui, Cassia M.Ībstract We present a new record to the Brazilian territory (i.e. crassula, the specimen B-100521014, which was collected by Friedrich Sello in southern Brazil, and is not original material for T. Furthermore, we clarify misconceptions concerning the epitype of T. S.Ībstract Here, we present evidence that the alleged correction of the typification of Tradescantia crassula recently proposed by Pellegrini, Forzza and Sakuragui is erroneous. The correct typification of Tradescantia crassula (Commelinaceae) Uses photographs to demonstrate that Tradescantia is an ideal organism for studying meiosis in the classroom. Mertens, Thomas R.ĭescribes a procedure for making slides of microsporogenesis in Tradescantia. Tradescantia: A Tool for Teaching Meiosis.ĮRIC Educational Resources Information Center
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