Effects of the s-triazine herbicide turbutryn on mitosis, chromosomes and nucleic acids in root tips of Vicia faba.

Badr, Abdelfattah

doi:10.1508/cytologia.51.571

Cited by 43 publications

(29 citation statements)

References 21 publications

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“…3). Sticky chromosomes are considered to be a chromatid type of aberration [37]. Darlington and Mc-Leish [38] suggested that stickiness might be due to degradation or depolymerization of chromosomal DNA.…”

Section: Discussionmentioning

confidence: 99%

Cytogenetic and genotoxic effects of zinc oxide nanoparticles on root cells of Allium cepa

Kumari

Khan

Pakrashi

et al. 2011

Journal of Hazardous Materials

353

144

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Section: Discussionmentioning

confidence: 99%

Cytogenetic and genotoxic effects of zinc oxide nanoparticles on root cells of Allium cepa

Kumari

Khan

Pakrashi

et al. 2011

Journal of Hazardous Materials

353

144

View full text Add to dashboard Cite

“…The behavior of laggards is characteristic in that they generally lead to micronuclei formation (Badr 1983, 1987, Kumar and Rai 2006. Micronuclei also arise if laggards or nonoriented chromosomes fail to reach the poles in time to be in the main telophase nucleus (Utsunomiya et al 2002).…”

Section: Discussionmentioning

confidence: 99%

“…Chromosomal aberrations (CA) were scored at metaphase and anatelophase, and estimated as the percentage of cells showing chromosomal abnormalities. The types of chromosomal anomalies were identified as described in Badr (1987).…”

Section: Cytological Proceduresmentioning

confidence: 99%

Cytological Effects of Gamma Radiation and Its Impact on Growth and Yield of M1 and M2 Plants of Cowpea Cultivars

2014

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SummaryThis study aimed at investigating the changes imposed by gamma radiation in mitotic activities and the chromosomes as well as the vegetative criteria and yield of M1 and M2 plants of five cowpea cultivars. Seeds of cultivars (Kaha 1, Dokki 331, Azmerly, Cream 7 and Giza 6) were exposed to levels of γ-radiation ranging from 50 to 300 Gy. Low levels of γ-radiation enhanced mitotic activity and resulted in significant increase in chromosomal abnormalities in the root tip cells of M1 and M2 plants. The percentage of abnormalities varied among the varieties and was generally lower in M2 plants compared to M1 plants. The 50-Gy and 100-Gy doses of γ-radiation induced positive effects on plant growth and yield of M1 plants, while the 300 Gy of γ-radiation caused detrimental damage on three cultivars (Dokki 331, Azmerly and Cream 7), which failed to grow to flowering. More pronounced improvements in growth and yield were recorded in M2 plants; the increase in growth and yield was often associated with increased mitotic activity and the occurrence of chromosomal abnormalities, indicating that γ-radiation-induced chromosomal abnormalities are not likely to be associated with negative effects on growth or yield. Based on the calculated yield index, 50 Gy of γ-radiation may be used to improve the yield of three varieties (Dokki 331, Azmerly and Cream 7) and the 100 Gy dose may be recommended for improving the yield of the two varieties, Kaha 1 and Giza 6.

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“…Stickiness is considered to be a chromatid type aberration (Badr 1986). Darlington and Mc-Leish (1951) proposed that stickiness might be due to degradation or depolymerization of chromosomal DNA.…”

Section: Discussionmentioning

confidence: 99%

Potential cytotoxic effect of Anilofos by using Allium cepa assay

et al. 2014

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Cytogenetic effects of Anilofos which was widely used in agriculture, was evaluated in Allium cepa root meristematic cells. In the Allium root growth inhibition test EC 50 value was determined 50 ppm and 1/29 EC 50 (25 ppm), EC 50 (50 ppm) and 2 9 EC 50 (100 ppm) concentrations of Anilofos were applied to onion roots. A negative and positive control were used in the experiment in parallel. According to results mitotic index decreased with increasing the Anilofos concentrations in all application groups and each exposure time, while disturbed anaphase-telophase, choromosome laggard(s), stickiness and anaphase bridge(s) were observed. In anaphase-telophase cells, c-metaphase, disturbed nucleus and binuclear cells were observed in other anomalies. The results were also analyzed statistically by using Dunnett t test (2-tailed) and all concentrations of Anilofos were found significant.

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Effects of the s-triazine herbicide turbutryn on mitosis, chromosomes and nucleic acids in root tips of Vicia faba.

Cited by 43 publications

References 21 publications

Cytogenetic and genotoxic effects of zinc oxide nanoparticles on root cells of Allium cepa

Cytogenetic and genotoxic effects of zinc oxide nanoparticles on root cells of Allium cepa

Cytological Effects of Gamma Radiation and Its Impact on Growth and Yield of M1 and M2 Plants of Cowpea Cultivars

Potential cytotoxic effect of Anilofos by using Allium cepa assay

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