Chromosomal Aberrations Induced by Chemical Mutagens in Allium
نویسندگان
چکیده
The effect of chemical mutagens on the induction of mitotic chromosomal aberrations in diploid Allium cepa and tetraploid Allium vineale has been studied. In inducing chromosomal aberrations in case of both diploid and tetraploid Allium all the mutagens were found to be effective . Mitotic irregularities were higher in tetraploid species as compared with the diploid species. All types of chemical mutagens were found to be effective for the induction of chromosomal aberrations but chromosomal aberrations are increased due to the effect of Ethyl Methyl Sulphonate (EMS) in comparison to the other chemical mutagens. In explaining the concentration of EMS application of 0.20% of the chemical may be the highest dose whereas 0.05% may be considered as a lower dose.
منابع مشابه
Physico-Chemical and Genotoxicity Assessments of Palm Oil Mill Effluent Generated by a Corporate Refinery In Nigeria
The rising global demand for palm oil and its associated products has led to increased numbers of palm oil refineries with its attendant effluent discharge. Many researches have confirmed the ecological disruptive potentiality of Palm Oil Mill Effluent (POME), still further attention has to be directed at POME’s potential genotoxicity. The present study has made physico-chemical and genotoxicit...
متن کاملPhysico-Chemical and Genotoxicity Assessments of Palm Oil Mill Effluent Generated by a Corporate Refinery In Nigeria
The rising global demand for palm oil and its associated products has led to increased numbers of palm oil refineries with its attendant effluent discharge. Many researches have confirmed the ecological disruptive potentiality of Palm Oil Mill Effluent (POME), still further attention has to be directed at POME’s potential genotoxicity. The present study has made physico-chemical and genotoxicit...
متن کاملPrevention of Acetaminophen-Induced Mitodepression with Myrobalan (Fruit of Terminalia chebula) in Allium cepa Model
Allium cepa bulbs were grown in pure tap water (group I), in seven concentrations of acetaminophen (7.81, 15.62, 31.25, 62.50, 125, 250, 500, and 1000 ppm) in the presence (group II) and absence of myrobalan (fruit of Terminalia chebula) at a fix concentration of 0.10 mg/mL. Parameters of study were mean root length, mitotic index, abnormal mitosis and chromosomal aberrations and morphology of ...
متن کاملMutagenicity – in Vivo Mammalian Bone Marrow Chromosome Aberration Test
The mammalian in vivo chromosome aberration test is used for the detection of structural chromosome aberrations induced by the test substance to the bone marrow cells of animals, usually rodents (1)(2)(3)(4). Structural chromosome aberrations may be of two types, chromosome or chromatid. An increase in polyploidy may indicate that a chemical has the potential to induce numerical aberrations. Wi...
متن کاملGamma Radiation Induced Chromosomal Aberrations at Mitosis in Allium cepa L
Mutagenic effectiveness of gamma rays on Allium cepa was studied. The seeds were treated with five doses (viz. 5kR, 10kR, 15 kR, 20kR and 25kR) of gamma rays. Chromosomal abnormalities were observed. Chromosomal aberrations like, dicentric, tricentric, ring, minute, deletion, fragment, laggard, bridge and micronuclei were noticed in treated root tip mitosis. The chromosomal abnormalities were i...
متن کامل