Las regulaciones internacionales sobre comercialización de organismos transgénicos demandan su detección en los productos alimenticios. En este estudio se probaron tres métodos extracción ADNg fuentes proteína soya (Glycine max L.) usadas como ingrediente alimentos. Los fueron: A) Homogeneización SDS 1 %-guanidina-HCl con fenol:cloroformo:alcohol isoamílico; B) %- β-mercaptoetanol precipitación...

Cauliflower mosaic virus (CaMV) is a DNA-containing pararetrovirus replicating by means of reverse transcription of a terminally redundant pregenomic 35S RNA that is also used as a polycistronic mRNA. The leader of 35S RNA is long, highly structured, and contains multiple short ORFs (sORFs), which strongly interfere with the ribosome scanning process. Translation of this RNA is initiated by a r...

The complete nucleotide sequence of an infectious clone of soybean chlorotic mottle virus (SoyCMV) DNA was determined and compared with those of three other caulimoviruses, cauliflower mosaic virus (CaMV), carnation etched ring virus and figwort mosaic virus. The double-stranded DNA genome of SoyCMV (8,175 bp) contained nine open reading frames (ORFs) and one large intergenic region. The primer...

We present novel multiplex PCR methods for rapid and reliable screening of genetically modified organisms (GMOs). New designed PCR primers targeting four frequently used GMO specific sequences permitted identification of new DNA markers, in particular 141 bp fragment of cauliflower mosaic virus (CaMV) 35S promoter, 224 bp fragment of Agrobacterium tumefaciens nopaline synthase (NOS) terminator,...

Tobacco plants were transformed with a Nhap type Na /H antiporter gene, SynnhaP1 (slr1595), from a cyanobacterium Synechocystis sp. PCC 6803. Two kinds of promoters, Arabidopsis alcohol dehydrogenase gene promoter (Adh promoter) and CaMV 35S promoter (35S promoter), were used. The transgenic plants driven by Adh promoter accumulated SynNhaP1 proteins only in root whereas the transgenic plants d...

To successfully infect plants, viruses must counteract small RNA-based host defense responses. During infection of Arabidopsis, Cauliflower mosaic pararetrovirus (CaMV) is transcribed into pregenomic 35S and subgenomic 19S RNAs. The 35S RNA is both reverse transcribed and also used as an mRNA with highly structured 600 nt leader. We found that this leader region is transcribed into long sense- ...

In this research, processed or low samples containing corn products (corn semolina, flour, etc.) and soybean were randomly collected from the market, 25 in total (chips, nuts, cereals, flour) analyzed for genetic modification using DNA based detection method, polymerase chain reaction. First, homogenization of was performed. Then isolation done by Cetyl Trimethyl Ammonium Bromide (CTAB) Roche H...