The long term side effects of genetically modified foods on health and local agriculture
Existing sterility and incompatibility systems to limit the transfer of pollen can be utilized, 72 as can Genetic Use Restriction Technologies GURTS which interfere with fertility or seed formation.
Allergies to non-GM foods such as soft fleshed fruit, potatoes and soy are widespread. The UK Farm-Scale Evaluations 69 were the biggest study of the potential environmental impact of GM crops conducted anywhere in the world. China will be susceptible to huge IP costs when it starts mass commercialization of the GM technology, Fang said.
How does genetically modified food affect the human body
Drought and salinity are expected to cause serious salinization of all arable lands by , 32 requiring the implementation of new technologies to ensure crop survival. What are genetically modified GM organisms and GM foods? The study has provided a platform for the government to objectively evaluate the effect of these crops, and even though the results were portrayed by critics of the technology as evidence for environmental hazards of GM, they resulted in government approval for the commercial growth of a herbicide-resistant GM maize in the UK. One proposal is to limit molecular farming to non-food crops, such as tobacco. The protein encoded by the gene will confer a particular trait or characteristic to that plant. For example, research was recently undertaken to identify an allergen in soybeans and remove it using GM technology. Virus resistance is achieved through the introduction of a gene from certain viruses which cause disease in plants.
Greenpeace China's spokesman Fang Lifeng said that the genetically modified crops should not be planted on a large scale as the health risks have not yet been ruled out. Frequently asked questions on genetically modified foods May These questions and answers have been prepared by WHO in response to questions and concerns from WHO Member State Governments with regard to the nature and safety of genetically modified food.
Despite this, the general public remains largely unaware of what a GM plant actually is or what advantages and disadvantages the technology has to offer, particularly with regard to the range of applications for which they can be used.
Other worries include the stability of the gene, and the reduction in the spectrum of other plants, including a loss of biodiversity, and the increased use of chemicals in agriculture. Inspectors sent to provinces for food safety The official nod to pesticide-resistant rice has triggered questions on whether the resistance technology will also work on humans.
Genetically modified crops
Virus resistance is achieved through the introduction of a gene from certain viruses which cause disease in plants. How is a risk assessment for the environment performed? As GM plants are gradually being introduced into the European Union there is likely to be increasing public concern regarding potential health issues. For example, GM plants can produce complex multimeric proteins such as antibodies that cannot be readily expressed by microbial systems. Whilst feasible, there are significant advantages to the use of food crops for recombinant pharmaceutical production, such as attainment of GRAS status and utilizing well-established agricultural techniques for production. Research is needed to improve the assessment of the environmental consequences of gene flow , particularly in the long run, and to understand better the gene flow between the major food crops and land races in centres of diversity ICSU, GM Science Review Panel. Similar evaluations are generally not performed for traditional foods. Whenever novel varieties of organisms for food use are developed using the traditional breeding methods that had existed before the introduction of gene technology, some of the characteristics of organisms may be altered, either in a positive or a negative way. In situations where weed pressure is high, the use of such crops has resulted in a reduction in the quantity of the herbicides used. While theoretical discussions have covered a broad range of aspects, the three main issues debated are the potentials to provoke allergic reaction allergenicity , gene transfer and outcrossing. This may be to express a gene that is not native to the plant or to modify endogenous genes.
based on 108 review