摘要:Bt-com,which is one of the most cultivated transgenic com lines in the world,can synthesize the Cryl Ab insecticidal protein produced by Bacillus thuringiens subsp.kurstaki bacteria.In this study,possible effects of genetic modifications in genetically modified Bt com on germination and early seedling the periods were determined.Micronucleus formation,chromosomal aberrations,germination success and morphological characteristics were examined during the germination phase.Stomatal density,pigment content,malondialdehyde and proline contents of leaves and seedling morphology were examined in the early seedling period.According to the results of this study,Bt com had a shorter seedling length but larger leaf area.In addition,anthocyanin content and proline levels and anterior and posterior stomatal densities were higher in Bt com.Consequently,genetic modification did not lead to noticeable changes which may affect the yield.However,the increased levels of anthocyanin and proline in Bt com indicated an oxidative stress that the plant was able to overcome.
关键词:Antioxidant;Com;GMO;Seedling;Transgenic;Zea mays L.