In this study we produced transgenic tobacco plants by overexpressing a serine proteinase inhibitor gene, SaPIN2a, from the American black nightshade Solanum americanum under the control of the CaMV 35S promoter using Agrobacterium tumefaciens-mediated transformation. SaPIN2a was properly transcribed and translated as indicated by Northern blot and Western blot analyses. Functional integrity of...

eucalyptus species are cultivated in homogeneous plantations in brazil, mainly to supply woodfor the cellulose and steel industries, which favors the establishment of insect pests. the objective was todetermine the geographical distribution and structure abundance of lepidoptera defoliators of eucalypt.primary pest species of eucalypt of the order lepidoptera were found in all areas sampled and...

Thrips specimens were collected in the year 2014 on different ornamental plants from Mahallat (Markazi Province), Iran. In this study, 11 species in six genera and three different families of Thysanoptera were collected and identified. The scientific names of thrips species are as follow: Melanthrips knechteli, M. pallidior, Frankliniella intonsa, F. occidentalis, Microcephalothrips abdominalis...

Interactions between plants and insect herbivores are important determinants of plant productivity in managed and natural vegetation. In response to attack, plants have evolved a range of defenses to reduce the threat of injury and loss of productivity. Crop losses from damage caused by arthropod pests can exceed 15% annually. Crop domestication and selection for improved yield and quality can ...

Lupin plants are frequently damaged by various herbivorous invertebrates. Significant among these are slugs and aphids, which sometimes attack the same plants. Relationships between aphids, slugs and food plant are very interesting. Grazing by these pests on young plants can lead to significant yield losses. There is evidence that the alkaloids present in some lupin plants may reduce grazing by...

Huge yield losses and deterioration of quality of cultivated plants occur due to continuous exposure of plants to pathogens and insect pests. The excessive use of chemical pesticides and fertilizers in modern agriculture result in a deterioration of soil fertility and through intracellular accumulation pesticide-resistant mutants of insects and plant pathogens have emerged worldwide. A number o...

thrips specimens were collected in the year 2014 on different ornamental plants from mahallat (markazi province), iran. in this study, 11 species in six genera and three different families of thysanoptera were collected and identified. the scientific names of thrips species are as follow: melanthrips knechteli, m. pallidior, frankliniella intonsa, f. occidentalis, microcephalothrips abdominalis...

The increasing need for food can be met through an increase in crop productivity and reduction in pest associated losses. Recombinant DNA technology has created new avenues for genetic enhancement of crops through the development of transgenic plants with resistance to insects. Bacillus thuringiensis (Bt) genes have been widely used as candidate genes for genetic transformation of crop plants f...