Genotoxic effect of two herbicides glyphosate and metribuzin on mitosis in vicia faba l.

Cytological effects of two herbicides, Glyph sate and Metribuzin on Vicia faba L .root tips were studied using lower and higher doses of these pesticides for four different duration. Reduction in mitotic index and root length were observed in two pesticides. Percentage of aberrant mitosis increased....

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Bibliographic Details
Published inSaudi journal of biological sciences Vol. 10; no. 2; pp. 138 - 158
Main Authors Shehata, Afaf Ibrahim, al-Harbi, Hanan Fahd
Format Journal Article
LanguageArabic
English
Published Riyadh, Saudi Arabia Saudi Biological Society 2003
Subjects
Fava bean
Glyphosate
Herbicides
Metribuzin
Mitosis
الانقسام المتساوي
الرقابة
مبيدات الأعشاب
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Summary:Cytological effects of two herbicides, Glyph sate and Metribuzin on Vicia faba L .root tips were studied using lower and higher doses of these pesticides for four different duration. Reduction in mitotic index and root length were observed in two pesticides. Percentage of aberrant mitosis increased. There was a concentration and time dependent mitodepression. Different types of chromosomal aberrations were observed such as stickiness, bridges, laggards, multipk and ring chromosome and micro nucleated cells. Induction of chromosomal breaks suggested clastogenic action of pesticides which increased abnormalities with increase in concentration. This indicates geotaxis level of respective pesticide
ISSN:1319-562X