Copper bromide (CuBr2) effects on seed germination and plantlet development of Vicia sativa L. are evaluated through mitotic index, chromosome aberrations, nucleolar activity and mineral profile. CuBr2 induces a significant presence of micronuclei, sticky and c-metaphases, anaphase bridges and chromosome breaks. Increased number of nucleoli and scattering of AgNOR proteins from the nucleolus in the nuclear surface at CuBr2 1 mM and in the cytoplasm at CuBr2 5 mM, goes along with the decrease of root growth. In V. sativa embryo the content of many macro and micronutrients increases up to copper 1 mM in agreement with reserve mobilization while at CuBr2 5 mM some elements are present in lower amount. We hypothesize that inhibitory effects observed at 5 mM are due either to a nutrient shortage or to a direct influence of copper on root cell division, evidenced by low mitotic index, high occurrence of chromosome aberrations and loss of material from the nucleolus.
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|Titolo:||Response to copper bromide exposure in Viciasativa L. seeds: Analysis of genotoxicity,nucleolar activity and mineral profile|
|Rivista:||ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY|
|Citazione:||Bellani, L., Muccifora, S., & Giorgetti, L. (2014). Response to copper bromide exposure in Viciasativa L. seeds: Analysis of genotoxicity,nucleolar activity and mineral profile. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY, 107, 245-250.|
|Appare nelle tipologie:||1.1 Articolo in rivista|
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