Genetic Modified Crops
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Genetic Modified Crops

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genetically modified crops

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Genetic Modified Crops Genetic Modified Crops Presentation Transcript

  • A child in Africa
  •  
  • Genetically modified crops PHAM VAN CHUYEN
  • Overview
    • Definition
    • Method
    • Usefulness of GM crops
    • Harmfulness of GM crops
    • Timeline and status
    • Vietnam and GM crops
    • Conclusion
  • Definition
    • A genetically modified crop (GMC) is an plant whose genetic characteristics have been altered by human
  • Method Note: Bt: Bacterium thuringiensis
  • Usefulness of GM crops
    • Pest resistance
    • Disease resistance
    • Herbicide tolerance
    • Drought tolerance
    • Nutrition
    • Pharmaceuticals
    • Phytoremediation
  • Usefulness of GM crops
    • 1,2 Pest & Disease resistance
  • Usefulness of GM crops
    • Herbicide tolerance
  • 4. Drought tolerance
    • Corn crops under drought stress
  • Result Genetically Modified Cotton (contains a bacterial gene for pest resistance) Standard Cotton
  • 5. Nutrition : Golden rice Worldwide, 7% of children suffer vitamin A deficiency, many of them living in regions in which rice is a staple of the diet. Golden rice (yellow) with standard rice (white).
  • Pharmaceuticals & Phytoremediation
    • – ‘ Spike’ protein gene of the pig corona virus in the same family as the Severe Acute Respiratory Syndrome (SARS) virus
    • – Glycoprotein gene gp 120 of the AIDS virus HIV-1 incorporated into GM maize as a cheap edible oral vaccine
  • Harmfulness of GM crops
    • Human health
    • - Allergen and toxin
    • - Unknown effects on human health
    • Environmental hazards
    • - Unintended harm to other organisms
    • - Gene transfer to non-target species
    • - BT resistance Insect
  • Human health
    • Allergen and toxin
    • Unknown effects on human health
  • Environmental hazards
    • Unintended harm to other organisms
  • Environmental hazards 2, Gene transfer to non-target species
  • Environmental hazards
    • BT resistance Insect
    Larva eating GM crop leaf
  • Timeline & status
    • 1986 – Federal “Coordinated Framework” for regulating biotech
    • 1994 – First biotech food approved (Flavr Savr tomato)
    • 1996 – First GM corn seed is sold; GM crops enter the food supply
  • Some result of Study Timeline & status
  • 0 10 20 30 40 50 60 70 80 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 Global Area of Biotech Crops, 1996 to 2007: By Trait (Million Hectares) Source: Clive James, 2008 Herbicide Tolerance Insect Resistance Herbicide Tolerance/Insect Resistance
  • Source: Clive James, 2008 Global Adoption Rates (%) for Principal GM Crops (Million Hectares) 2007 M Acres 346 247 198 99 148 49 0 297 396 91 64% 0 20 40 60 80 100 120 140 160 Soybean Cotton Maize Canola standard GM crops 35 43% 148 24% 27 20%
  • GM Crop Countries and Mega-Countries, 2007
  • Vietnam and GM crops
    • Vietnam begin to research GM crops from 1990
    • In Vietnam, institutes planed GM crops: rice, maize, potato
  • Conclusion Improved Nutrition Resistance to disease Reduced use of chemicals Environmental risks Health risks Economic risks
    • So are GM foods a good or bad thing?
    • It depend on each individual case
    • In future, we will become agronomist, so did you have your own idea about Gm crops?