RNA editing in plant organelles is mediated by site-specific, nuclear-encoded factors. Previous data suggested that the maintenance of these factors depends on the presence of their rapidly evolving cognate sites. The surprising ability of allotetraploid Nicotiana tabacum (tobacco) to edit a foreign site in the chloroplast ndhA messenger RNA was thought to be inherited from its diploid male anc...

Abstract Expansins and xyloglucan endotransglycosylases play an important role in the regulation of plant growth under optimal stressful conditions. Transgenic tobacco plants overexpressing NtEXPA1 NtEXPA5 expansin genes NtEXGT endotransglycosylase Nicotiana tabacum L. have been previously created by authors. The aim this work was morphophysiological analysis roots these transgenic conditions c...

In eukaryotes, manganese superoxide dismutase is a nuclear-encoded protein that scavenges superoxide radicals in the mitochondrial matrix. We have isolated two manganese superoxide dismutase genes from Nicotiana plumbaginifolia L. and fused the 5' upstream regulatory region of these genes to the beta-glucuronidase reporter gene. The two gene fusions displayed a differential tissue specificity i...

In Nicotiana glutinosa L. formation of local lesions on lower leaves inoculated with tobacco mosaic virus increased the susceptibility of the upper leaves to infection in a subsequent inoculation. The increase in susceptibility was detected as an increase of up to 3"5-fold in the number of lesions produced on the upper leaf and a corresponding increase in the amount of virus RNA synthesized. Th...

The purpose of this study was to determine the effectiveness combination tobacco leaf extract (Nicotiana tabacum) and green binahong (Anredera cordifolia steenis) against myiasis. used in vitro method for testing, while obtained using immersion method. This research conducted a completely randomized design (CRD) with one-way pattern (One Way ANNOVA) 6 treatments 4 replications. test uses fresh ...