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Please use this identifier to cite or link to this item: http://purl.org/purl/4728

Title: Induction of mitotic aberrations by Argon ion lasers in Vicia faba L. and Allium cepa L.
Authors: Padma, Nambisan
Nampoori, V P N
Vallabhan, C P G
Unni krishna PilIai, P R
Issue Date: 1997
Abstract: A comparat ive study of the effect oflaser in inducing chro mosomal aberrat ions at 4gg nm was done in View j aba L. (faba bean) and Allium ccpa L. (onion) with Argon ion laser (Spectra Physics Model 171). Seeds and bulbs of V.jaba and A. eepa were subjected to laser irra diation by 4gg nm excitations from Argon ion laser source at power levels 200 and 400 mW with power densities 2.25 mW em" and 4.49 mW em" and ditTerent exposure times (10, 20, 30 & 40 minutes). Similar to the effect of oth er physical and chemical mutagens, laser caused a dose dependent decrease in mitotic index and a rise in mitotic aberrations when compared to the control. In both plant species, mutations were observed in all stages of mitotic cell cycle. The total percentage of aberrations was two fold higher at 400 mW than at 200 mW exposure.
Description: GENETICS and BREEDING Volume 28 Number3-4 pp. 27-33, 1996/1997
URI: http://dyuthi.cusat.ac.in/purl/4728
Appears in Collections:Dr.Padma Nambisan

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