Cytogenetic characterization of Amaranthus caudatus L. and Amaranthus hybridus subsp. cruentus (L.) Thell.

The present study is aimed to identify genetic variability between two species of Amaranthus viz., A. caudatus and A.

Cytotoxic and apoptotic activities of extract of Amaranthus spinosus L. in Allium cepa and human erythrocytes.

The present study examined the apoptosis inducing effects of Amaranthus spinosus L. aqueous extract in Allium cepa root meristematic cells and human erythrocytes. Cytogenetic assay revealed many apoptosis inducing cytogenetic aberrations viz.

Induction of giant cells by the synthetic food colorants viz. lemon yellow and orange red.

Cytotoxicity and giant cell formation induced by lemon yellow and orange red synthetic food colorants were evaluated in the present study. The aqueous solutions of both the dye solutions were tested for cytotoxicity using Allium cepa assay. Frequency of giant cells were determined after treating the root tips with different concentrations of both food colorant solutions viz.