Journal
NATIONAL ACADEMY SCIENCE LETTERS-INDIA
Volume 45, Issue 1, Pages 35-37Publisher
SPRINGER INDIA
DOI: 10.1007/s40009-021-01072-9
Keywords
Allium cepa; Cadmium; Chromosomal aberration; Genotoxicity; Heavy metal; Mitotic index
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Funding
- Dr. TMA Pai University Research Fund, Sikkim Manipal University
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The study revealed that cadmium can inhibit cell proliferation and cause chromosomal damage in onion roots at higher concentrations, even within a short exposure time.
Cadmium (Cd), one of the most toxic heavy metals, seriously impairs plant and animal physiology and is a potent mutagen. Effect of a cadmium salt on chromosome integrity was studied for increasing concentrations and for different exposure time in root tips of onion A. cepa. Cd had cytostatic effect in higher concentration (100 mu M). It showed chromosome damage, which was most pronounced at 100 mu M after 24 h. of exposure. Abnormal chromosome separation was also observed. It can be concluded that Cd can inhibit cell proliferation in higher concentration irrespective of exposure time. And it can introduce chromosomal damage in A. cepa even within 2 h. of exposure.
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