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BEIJING, Mar. 1 (Xinhuanet) -- After strict testing, the Chinese Ministry of Agriculture has awarded its first batch of safety certificates for foreign genetically modified crops used for processing purposes in China, with the first given to US biotech giant Monsanto. Scientists say the government's official seal of approval is a
good indication that transgenic products are safe.
A genetically modified crop plant contains a
gene or genes that have been artificially inserted, instead of the plant
acquiring them through pollination. The inserted gene sequence may come from a
related plant, or from a completely different species. Since the early 1990s, GM
crops have been widely used in the United States, as well as some other
countries.
Dr. Li Yongchun works at the State Key Laboratory for
Agro-biotechnology of Chinese Agriculture University. He says genetically
altered crops have particular advantages.
"Depending on where and for what purpose the plant is
grown, desirable genes may provide features such as higher yield or improved
quality, pest or disease resistance, or tolerance to heat, cold and drought."
Furthermore, transgenic technology enables plant
breeders to bring together in one plant useful genes from a wide range of living
sources, not just from within the crop's species or from closely related plants.
It can therefore generate more useful and productive crop varieties containing
new combinations of genes.
However, the introduction of transgenic crops and
foods has generated a number of questions about possible negative consequences.
Since early 1998, no new strains of genetically modified foods have been
approved for use in Europe, though there were already 18 kinds of transgenic
foods there. Li Yongchun notes there are two main concerns.
"One is food safety. For example, we might see an
increase in the number of allergic reactions to food as a result of genetic
engineering. But until now there is no evidence that transgenic foods pose more
of a risk than conventional foods."
The other concern is about whether the goods are safe
for the environment. For instance, hybridization of crops with nearby weeds may
enable weeds to acquire undesirable traits, such as resistance to herbicides.
But now many ways have been found to prevent this.
Li yongchun says there are other concerns about
health and environmental safety. However, either there is no evidence of a
problem or scientists have found ways to prevent such problems from arising.
Bearing such things in mind, the Chinese government has paid much attention to
China developing its own genetically modified products.
"The state Hi-Tech Research and Development Program,
or 863 Program, has a special item of transgenic biotechnology. With huge
financial support, our laboratory has developed pest-resistant maize,
virus-resistant wheat and drought-resistant corn."
Reports say six strains of Chinese-developed
transgenic crops have now been put into production. And with more and more
foreign GM altered crops entering China, Chinese consumers can easily find
labeled transgenic foods on the shelves of supermarkets.
(CRIENGLISH.COM) |