Transgenic Plants for Insect Resistance
نویسندگان
چکیده
منابع مشابه
Strategies for antiviral resistance in transgenic plants.
Genetic engineering offers a means of incorporating new virus resistance traits into existing desirable plant cultivars. The initial attempts to create transgenes conferring virus resistance were based on the pathogen-derived resistance concept. The expression of the viral coat protein gene in transgenic plants was shown to induce protective effects similar to classical cross protection, and wa...
متن کاملDelaying insect resistance to transgenic crops.
I n her seminal work, Silent Spring, Rachel Carson writes: ‘‘If Darwin were alive today the insect world would delight and astound him with its impressive verification of his theories of survival of the fittest. Under the stress of intensive chemical spraying the weaker members of the insect populations are being weeded out.’’ (1) Evolution of insecticide resistance in 400 species of insects no...
متن کاملThe Relationship between Insect Resistance and Tree Age of Transgenic Triploid Populus tomentosa Plants
To explore the stability of insect resistance during the development of transgenic insect-resistant trees, this study investigated how insect resistance changes as transgenic trees age. We selected 19 transgenic insect-resistant triploid Populus tomentosa lines as plant material. The presence of exogenous genes and Cry1Ac protein expression were verified using polymerase chain reaction (PCR) an...
متن کاملImprovement of Pest Resistance in Transgenic Tobacco Plants Expressing dsRNA of an Insect-Associated Gene EcR
The adoption of pest-resistant transgenic plants to reduce yield loss and pesticide utilization has been successful in the past three decades. Recently, transgenic plant expressing double-stranded RNA (dsRNA) targeting pest genes emerges as a promising strategy for improving pest resistance in crops. The steroid hormone, 20-hydroxyecdysone (20E), predominately controls insect molting via its nu...
متن کاملPotential shortfall of pyramided transgenic cotton for insect resistance management.
To delay evolution of pest resistance to transgenic crops producing insecticidal proteins from Bacillus thuringiensis (Bt), the "pyramid" strategy uses plants that produce two or more toxins that kill the same pest. In the United States, this strategy has been adopted widely, with two-toxin Bt cotton replacing one-toxin Bt cotton. Although two-toxin plants are likely to be more durable than one...
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ژورنال
عنوان ژورنال: Phytoprotection
سال: 1998
ISSN: 0031-9511,1710-1603
DOI: 10.7202/706169ar