Evaluation of anti-genotoxicity of the leaf extracts of Morinda citrifolia Linn

S. Sreeranjini and E.A. Siril
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S. Sreeranjini: Department of Botany, University of Kerala, Kariavattom, Kerala, India
E.A. Siril: Department of Botany, University of Kerala, Kariavattom, Kerala, India

Plant, Soil and Environment, 2011, vol. 57, issue 5, 222-227

Abstract: Morinda citrifolia Linn. (family Rubiaceae) is a small tree occurring in tropical areas of the world. The plant contains several medicinally active components that exhibit the therapeutic effects such as antibacterial, antiviral and anticancer activities. Anti-genotoxic effects of aqueous extracts prepared using dried leaves of M. citrifolia was studied. Allium cepa root tip meristem cells treated with 7% hydrogen peroxide were used for eliciting anti-genotoxicity. For this purpose experiments were performed with A. cepa onion bulbs treated for 24 h with different concentrations (15 or 30 g/L) of aqueous extract with or without pre-treatment (1 h) with 7% hydrogen peroxide. A significant reduction in mitotic index was recorded in treatment groups over negative control. Chromosomal aberrations such as breaks, bridges, stickiness and polar deviations were observed in positive control and treatment groups. The highest (21.48) percentage of chromosomal aberrations was noticed in positive control. A significant reduction in chromosomal aberrations (9.39) was recorded in root tips treated with hydrogen peroxide followed by 15 g/L extract. H2O2 induced chromosomal aberrations were reduced due to leaf extract treatment indicates anti-mutagenic potential of the M. citrifolia. The observations suggest that M. citrifolia aqueous leaf extracts have anti-mitotic and anti-genotoxic effects; consequently oxidative stress induced aberrations due to H2O2 are efficiently restored in the extract treated A. cepa root meristem cells.

Keywords: Allium cepa; chromosome aberrations; hydrogen peroxide; mitotic index; oxidative stress (search for similar items in EconPapers)
Date: 2011
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpse:v:57:y:2011:i:5:id:376-2010-pse

DOI: 10.17221/376/2010-PSE

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