STUDY OF CYTOGENETIC EFFECT OF BRILLIANT BLUE FCF ON ALLIUM CEPA ROOT MERISTEMSSomesh Yadav and Meenu SaxenaAbstract The impact of Briliant Blue FCF was evaluated on root tips of Allium cepa.The synthetic food colour has shown a significant effect on the mitotic index of Album cepa root tips.Treatment of 100 ppm. 250 ppm, 500 ppm, 750 ppm and I 000 ppm of aqueous solution of Brilliant Blue FCF was provided for 2,4 and 6 hours to the root tips of Alllium cepa. It was observed that Briliant Blue FCF was mitodepressive in nature.The aqueous solution of synthetic food colour has also induced various chromosomal aberrations such as chromosomal breakage, scattered metaphase, chromatid separation, condensation of chromosomes, stickiness of chromosomes, disturbed metaphase, bridge formation, laggard formation, polarity abolition and chromosomal extrusion at different stages of cell division.
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