1 / 10

Transgenic Crops

Transgenic Crops. Group #7 Jeremiah Johnson Anna Zaklikowski Jessica Frasier. Introduction. Background Transgenic Crop – A plant that contains a gene or genes which have been artificially inserted instead of the plant acquiring them through pollination. Description.

shona
Télécharger la présentation

Transgenic Crops

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Transgenic Crops Group #7 Jeremiah Johnson Anna Zaklikowski Jessica Frasier

  2. Introduction • Background • Transgenic Crop – A plant that contains a gene or genes which have been artificially inserted instead of the plant acquiring them through pollination

  3. Description • Overview of the process for creating transgenic plants

  4. History & Methods • 1983 Disarming of Agrobacterium tumefaciens (Ti plasmid) for use in gene transfers • 1987 Invention of gene gun • Present status

  5. Use of bacterium Bacillus thuringiensis Natural Insecticide Targets specific receptors Cotton, Potatoes, Tomatoes Dutch Elm Disease Caused by fungus – Ceratocystis ulmi Controlled by bacterium Pseudomonas syringue Research in seedlings and mature trees Applications & Advantages Image:Results of insect infestation on Bt (right) and non-Bt (left) cotton bolls. Source: USDA

  6. Applications & Advantages • Flavr-Savr Tomatoes • Kanamycin resistance (kan-r gene) • Allows tomatoes to ripen longer on vine for fuller taste and still be transportable • Round-up Herbicide Resistance • Enable plants to tolerate glyphosate • Cotton, corn, tobacco, tomatoes, soybeans

  7. Risks & Concerns • Loss of Biodiversity • Superweeds • Transgenic Crop Effectiveness

  8. Risks and Concerns • Human Health Risks • Corporate Control of Food Supply

  9. Conclusions • Future possibilities • Turfgrass for lawns • Plant-based vaccines • Transgenic crops offer hardier varieties • Risks cannot be ignored

More Related