Evaluation of Genotoxicity of CSE1034 by Ames and In vitro Chromosomal Aberration Tests

Purpose: To evaluate the genotoxicity of CSE1034, a novel antibiotic  adjuvant entity, using bacterial reverse mutation assay (Ames test) and in vitro chromosomal aberration test.Methods: Reverse mutation test was carried out using four strains of  Salmonella typhimurium (TA 98, TA100, TA1535 and TA1537) and one strain of E. coli [WP2 (uvrA)], while chromosomal aberration test was done with cultured Chinese hamster lung (CHL) cells. Reverse mutation test was carried out in a dose range of 0.0015 to 0.16 ìg/plate in triplicate with and without S9 activation.Results: No significant increases in the number of revertants were observed at the dose levels where antibacterial effects were not noted. CSE1034 caused no increase in the number of chromosomal aberrants at dose levels of 0.34, 0.69, 1.37, 2.75 and 5.50 mg/ml in the absence and presence ofmetabolic activation.Conclusion: Based on the above observations, it can be concluded that CSE1034 has no mutagenic activity.Keywords: CSE1034, reverse mutation, antibiotic adjuvant entity, Chromosomal aberration, Mutageni

Performance of newly developed sunflower inbred lines for yield and yield contributing traits under rainfed condition

Not AvailableThe present investigation was carried out at ICAR-Indian Institute of Oilseeds Research, Hyderabad. The material consisted of 25 newly developed mono and multi headed restorer lines. The data for agronomic and yield traits was recorded. The genotypes, COSF-6B, COSF-7B, RGP-11-P1-S2, RGP-58-P4-S1-1 and RGP-46-P3 were identified as the most important genotypes for different traits and should be utilized in hybridization program to realize high heterosis for yield and yield contributing traits.Not Availabl

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