STUDIUL DIVIDERILOR MITOTICE ÎN MERISTEMELE RADICULARE LA ALLIUM CEPA L. SUB INFLUENŢA STRUCTURILOR NANOCOMPOZITE BAZATE PE OXIZII VANADIULUI

Maria FRUNZĂ, Ana BÎRSAN Universitatea de Stat din Moldova

Abstract

THE STUDY OF MITOTIC DIVISIONS IN ALLIUM CEPA L. RADICULAR MERISTEMS UNDER THE INFLUENCE OF NANOCOMPOSITE STRUCTURES BASED ON VANADIUM OXIDES

In the present work the influence of nanocomposite structures based on vanadium oxides on the mitotic divisions in radicular meristems at Allium cepa L. was studied. The cytological analysis revealed the presence of abnormal mitoses and chromosomal aberrations in the experimental variants with exposure to nanocomposites, based on division spindles. This indicates the cytotoxic and genotoxic character of the studied materials.

Keywords: root meristems, Allium cepa L., nanocomposite structures, vanadium oxides, mitotic activity, mitotic index, cytotoxic action, genotoxic action, chromosomal aberrations.