Tomato yellow leaf curl virus (TYLCV) full-length DNA was amplified by PCR and cloned into a bacterial plasmid. The cloned TYLCV DNA was excised from the plasmid, ligated and the resulting monomeric circular double-stranded TYLCV DNA was used to inoculate tomato (Solanum lycopersicom) and datura (Datura stramonium) plants by particle bombardment. The bombarded plants produced typical disease sy...

The transmission of insect-borne viruses involves sophisticated interactions between viruses, host plants, and vectors. Chemical compounds play an important role in these interactions. Several studies reported that the plant virus tomato spotted wilt orthotospovirus (TSWV) increases quality for its vector benefits thrips Frankliniella occidentalis. However, few have investigated chemical ecolog...

O trabalho objetivou-se na descrição bibliográfica da planta do Kapassarinho (Datura Stramonium), para entender os seus efeitos controversos já que são poucos estudos mencionados, extratos misturas complexas constituídas de diversas classes químicos produtos naturais. nome vulgar em Angola e é encontrada no interior País classificada como erva Daninha. Para a concretização deste utilizou-se met...

The aim of the present study was to investigate the antimicrobial activity and phytochemical screening of Carica papaya, Piper nigrum and Datura stramonium plant extracts. Ethanol and Methanol were used as the solvents for extraction. The antimicrobial activities of these plant extracts were tested against the drug resistant Gram-positive and Gram-negative bacterial strains. The bacteria used i...

The carbohydrate binding specificity of Datura stramonium agglutinin was studied by analyzing the behavior of a variety of complex-type oligosaccharides on a D. Stramonium agglutinin-Sepharose column. Oligosaccharides which contain Gal beta 1----4GlcNAc-beta 1----4(Gal beta 1----GlcNAc beta 1----2)Man units are retarded in the column so long as the pentasaccharide unit is not substituted by oth...

It has been hypothesized that slow-growing plants are more likely to maximize above-ground biomass and fitness when defoliated by herbivores than those with an already high relative growth rate (RGR). Some populations of the annual herb Datura stramonium L. can tolerate foliar damage better than others. The physiological basis of this difference is examined here in a comparative study of two ec...