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Pakistan Journal of Biological Sciences
  Year: 1999 | Volume: 2 | Issue: 2 | Page No.: 537-540
DOI: 10.3923/pjbs.1999.537.540
 
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Micronuclei, as Indicator of Mutagenecity In Cultivated Allium

Magda I. Soliman

Abstract:
This study was performed to determine the relationship between chromosome aberrations in PMCs and micronuclei formation as well as chiasma frequency in cultivated Allium cepa collected from two sites. One site adjacent to the high way which is characterize by heavy traffic and the plants grown exposed to the different components of ignition exhaust in air as well as in soil, The other site away from the traffic pollution as control samples. Different types of chromosomal aberrations observed in first and second meiotic cells were: bridge, stickiness, chromosome aggregates in the form of a ring, vaculated nucleus, misorientation and multinucleated cells. Micronuclei formation represented the most dominant type of mieiotic abnormalities, The results indicated that aberration percentages of meiosis I were more frequent than those of meiosis II. Also a decrease in chiasma frequency in site I over site II was observed.
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How to cite this article:

Magda I. Soliman , 1999. Micronuclei, as Indicator of Mutagenecity In Cultivated Allium. Pakistan Journal of Biological Sciences, 2: 537-540.

DOI: 10.3923/pjbs.1999.537.540

URL: https://scialert.net/abstract/?doi=pjbs.1999.537.540

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