Zinc-Induced Genotoxic Effects in Root Meristems of Barley Seedlings

  • Elena TRUTA Institute of Biological Research Iasi branch of NIRDBS, Department of Applied and Experimental Biology, 47 Lascar Catargi Street, 700107 Iasi
  • Daniela GHERGHEL Institute of Biological Research Iasi branch of NIRDBS, Department of Applied and Experimental Biology, 47 Lascar Catargi Street, 700107 Iasi
  • Iulia Csilla I. BARA Alexandru Ioan Cuza University Iasi, Faculty of Biology
  • Gabriela V. VOCHITA Institute of Biological Research Iasi - branch of NIRDBS

Abstract

The pollution increase, as a result of the release into environment of genotoxic chemicals, including heavy metals, largely affects the ecosystems and the health of living organisms. Although zinc is not considered highly phytotoxic, its excess becomes noxious. In literature, the reports on zinc genotoxicity are equivocal. Therefore, the objective of this work was to evaluate the amplitude of cytogenetic damage induced in Hordeum vulgare L. cv. ‘Madalin’ after seed treatment with different concentrations (10, 100, 250, 500 μM) of Zn+2, provided as zinc sulphate and zinc acetate. The mitostimulatory effect was present at all concentrations of both zinc compounds. The rate of ana-telophase aberrations exceeded by 2 - 3 times the control, and the frequency of metaphase disturbances was 5.0-10.0 times higher than the control. The results indicate the clastogenic and aneugenic potential of zinc in barley and constitute a signal about the risks of its increasing presence into the environment, with repercussions on living systems, even on human health, due to the extensive use of zinc compounds including as pesticides.

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Author Biographies

Elena TRUTA, Institute of Biological Research Iasi branch of NIRDBS, Department of Applied and Experimental Biology, 47 Lascar Catargi Street, 700107 Iasi
Daniela GHERGHEL, Institute of Biological Research Iasi branch of NIRDBS, Department of Applied and Experimental Biology, 47 Lascar Catargi Street, 700107 Iasi
Iulia Csilla I. BARA, Alexandru Ioan Cuza University Iasi, Faculty of Biology
Gabriela V. VOCHITA, Institute of Biological Research Iasi - branch of NIRDBS
Published
2013-05-28
How to Cite
TRUTA, E., GHERGHEL, D., BARA, I. C. I., & VOCHITA, G. V. (2013). Zinc-Induced Genotoxic Effects in Root Meristems of Barley Seedlings. Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 41(1), 150-156. https://doi.org/10.15835/nbha4118943
Section
Research Articles