2002
DOI: 10.1590/s1516-89132002000300008
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Biological Response of Tradescantia Stamen-hairs to High Levels of Natural Radiation in the Poços de Caldas Plateau

Abstract: The objective of the present study was to apply a highly sensitive botanical test of mutagenicity (the Tradescantia stamen-hair mutation bioassay) to assess in situ the biological responses induced by naturally occurring radiation in the Poços de Caldas Plateau. The mutagenesis was evaluated in environments presenting gamma radiation exposure rates ranging from 1.5 muR.min-1 up to 100.0 muR.min-1. The results consistently showed only borderline increases in mutation frequencies in plants exposed to areas with … Show more

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Cited by 13 publications
(1 citation statement)
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“…The sensitivity of the Tradescantia micronucleus has been used widely and has demonstrated the relation between radiation dose and frequency mutational obsevarded at low doses, looking through these studies contribute to the vexed question of the effects of low doses and their consequences for human health (Ma et al,1994;Gomes et al, 2002;Santos et al,2005;Santos et al,2008). This system carries the advantage of observing meaningful data in a short period of time, being able to meditate effects on human health and to prevent possible accidents, when adopted as periodical monitoring.…”
Section: Resultsmentioning
confidence: 99%
“…The sensitivity of the Tradescantia micronucleus has been used widely and has demonstrated the relation between radiation dose and frequency mutational obsevarded at low doses, looking through these studies contribute to the vexed question of the effects of low doses and their consequences for human health (Ma et al,1994;Gomes et al, 2002;Santos et al,2005;Santos et al,2008). This system carries the advantage of observing meaningful data in a short period of time, being able to meditate effects on human health and to prevent possible accidents, when adopted as periodical monitoring.…”
Section: Resultsmentioning
confidence: 99%