Cytogenetic toxicity effects of inorganic nickel and organic Ni(II) complexes on Brassica oleracea L. root meristem

• Authors: J. Molas
• Languages of publication: EN

Abstracts

EN

Experiments were carried out on the effect of nickel as an inorganic compound (NiSO4?7H2O) and organic Ni(II) complexes (i.e. Ni(II)-Glu and Ni(II)-EDTA) in concentrations of 20, 40 and 85 muM dm-3 on meristematic cells of root tips of Brassica oleracea L. cv. S?awa from Enkhouizen. All three tested chemical forms of nickel had a mitodepressive effect and inhibited root elongation. With respect to the degree of root elongation inhibition and mitodepressive effect, the tested forms of nickel can be put in the following order: Ni(II)-Glu NiSO4?7H2O Ni(II)-EDTA. In all three tested forms, nickel caused disturbances in mitotic divisions, resulting in anaphase bridges and binuclear cells, whose nuclei were joined by a bridge of condensed chromatin or separated. Inorganic nickel and Ni(II)-Glu in higher concentrations damaged nuclei (the amount of condensed chromatin increased), nucleoli (their structure became more condensed and vacuolisation was observed), endoplasmic reticulum (fragmentation, swelling of cisternae) and mitochondria (structure condensation).

Keywords

EN

CABBAGE; CYTOTOXICITY; GENOTOXICITY; MITOSIS; NICKEL; ROOT MERISTEM; STRESS TOLERANCE

Discipline

• GENETICS: GENETICS

• Publisher: Institute of Plant Genetics, Polish Academy of Sciences
• Journal: Journal of Applied Genetics
• Year: 2001
• Volume: 42
• Issue: 3
• Pages: 257-268

Contributors

author

J. Molas

• Document Type: ARTICLE
• Publication order reference: J. Molas, Department of Plant Biology, Institute of Agricultural Sciences, ul. Szczebrzeska 102, 22-400 Zamosc, Poland, e-mail: [e-mail]