Analysis of Nickel Induced Genotoxicity in Root Meristem of Allium cepa
نویسندگان
چکیده
Published: 15, August, 2013; Vol. No. 4(2):19-22; www.gbtrp.com; All Right Reserved, ©Gayathri Teknological Publication, 2013. Abstract Nickel induced genotoxic effect on Allium cepa root meristem was evaluated after treating onion root tips with various concentrations of NiCl2 in different time intervals. Mitotic index was higher (9.87 ± 1.96) at initial concentration of 10μg/l in three time intervals (1h,3h and 5h) tested and decreased progressively when NiCl2 concentration and exposure time was increased. Chromosomal gap was found to be very less (1.00) in 30μ/l concentration in all time intervals and found to be increased slightly in higher concentrations. Chromosomal break was found to be highest (36.00) in 100μg/l in all time intervals. Total aberration was found to be increased significantly as concentration increased.
منابع مشابه
Genotoxicity of Industrial Paint Effluent on the Root Meristem of Allium Cepa
The genotoxic effects of the industrial effluent from a paint (100%, 50%, 25%, 10%, 5%, 1%, 0.50% and 0.25%) manufacturing company in Ikotun, Lagos was evaluated using the root meristem cells of Allium cepa. chromosomal aberration assays were used to determine the mitotic index and chromosome aberration rate. There was a significant difference (p<0.05) in the average root length of Allium cepa ...
متن کاملGenotoxicity and toxicity evaluations of ECF cellulose bleaching effluents using the Allium cepa L. test.
Toxicity and genotoxicity tests were performed on root cells of Allium cepa in order to evaluate wastewater quality following an ECF cellulose bleaching process. The results revealed a toxic effect of the effluent, with inhibition of meristem growth and generally lower values of metaphase, anaphase and telophase indices at pH 10.5 than pH 7 for all effluent concentrations. The genotoxicity effe...
متن کاملSensitivity of Allium cepa and Vicia faba towards cadmium toxicity
Sensitivity of common onion (Allium cepa L.) and faba bean (Vicia faba L.) to cadmium (Cd) stress was investigated using genotoxicity endpoints. Simultaneously, the antioxidative stress enzymes (guaiacol peroxidise and catalase) and lipid peroxidation [malonaldehyde (MDA) content] were investigated in the plants exposed to Cd in solution. The endpoints screened for genotoxicity included chromos...
متن کاملChromosomal aberrations induced by Glycidol in Allium cepa L root meristem cells
Glycidol is used as a stabilizer in the manufacture of vinyl polymers and natural oils and as an intermediate in the synthesis of glycerol, glycidyl ethers, and amines. It is also used as an alkylating agent, demulsifier, and dye-leveling agent and for sterilizing milk of magnesia. Glycidol is an alkylating agent which reacts readily with glutathione; it causes a decrease in glutathione content...
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 کامل