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Pakistan Journal of Biological Sciences

Year: 2006 | Volume: 9 | Issue: 6 | Page No.: 1116-1120
DOI: 10.3923/pjbs.2006.1116.1120
Mitotic Effect of Water Extract of Different Ipomoea Species on Allium cepa L.
A. Mondal, G. Kabir, N. Yasmin, A.M. S. Alam and H. A. Khatun

Abstract: The present investigation on ten species of Ipomoea was made from mutative points of view. For testing the mutagenic effectiveness of ten Ipomoea species their fresh leaves were used and the test was made on root tip cells of onion. Five different concentrations of the leaf extracts and two different treatments were considered. Cytological observations revealed that all the doses of leaf extracts caused mitotic anomalies. The anomalies were observed mostly at metaphase, anaphase and telophase. Bridge and ring chromosomes were common at anaphase. Few anomalies like c-metaphase, fragments and laggards were also observed. The frequency and type of abnormalities caused due to mutagenic effect of the leaf extracts of ten Ipomoea species were recorded under different treatment duration and doses. DMRT indicated the highest mutagenicity due to aqueous extract of I. carnea and lowest due to I. aquatica. In the present investigation, it was observed that mitotic anomalies increased with an increase of the doses and treatment duration. The overall doses of I. aquatica leaf extracts showed negligible anti-mitotic effects in Allium cepa roots compared to that of other Ipomoea species.

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How to cite this article
A. Mondal, G. Kabir, N. Yasmin, A.M. S. Alam and H. A. Khatun, 2006. Mitotic Effect of Water Extract of Different Ipomoea Species on Allium cepa L.. Pakistan Journal of Biological Sciences, 9: 1116-1120.

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