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What, you may ask, is
common between potatoes, tomatoes, brinjal, chilli, datura,
tobacco and the deadly nightshade (belladonna)? They all
belong to a plant family called Solanaceae. The Solanaceae
family contains a number of important agricultural plants
as well as many psychoactive and toxic plants. Solanaceae
species are rich in complex chemicals called alkaloids and
contain some of the most poisonous plants known to
mankind. They produce alkaloids in their roots, leaves and
flowers. These alkaloids can be hallucinogens, stimulants
or outright toxic. For example, when potatoes are exposed
to light, a chemical called solanin is produced which
appears as a green tinge. Green potatoes can be toxic,
damage an unborn fetus and cause abortions. Other plants
of this family known for their toxic qualities are
belladonna, datura and tobacco.
Farmers
have been working for thousands of years to domesticate
wild plants like those of the Solanaceae family, to make
them safe for eating. Much of this exercise involved
breeding out the toxins contained in the wild plants.
Scientists too have used careful, selective breeding to
“clean up” crop varieties which had good qualities but
contained toxins. Now brinjal, a member of this family,
has been genetically engineered (GE) to produce a toxin to
protect itself against a particular pest. This seems to be
a process working to reverse several thousand years of
efforts to detoxify natural plants to make them fit for
human consumption!
Genetic
engineering in plants has not been mastered enough to rule
out the creation of dangerous new products in the cells
when genes are muddled during the insertion of new,
usually foreign genes. Several cases are known when new
proteins and toxins were produced in plants which were
genetically engineered. For example, when genetically
modified (GM) peas were being developed by the
Commonwealth Scientific and Industrial Research
Organisation (CSIRO) in Australia to protect peas from the
pest pea weevil, it was found that newly-formed proteins
in the GM peas repeatedly caused immunity problems and
lung inflammation when fed to mice. The experiments had to
be abandoned. In another case, when mice were fed the
genetically engineered Flavr Savr tomato, seven out of 40
experimental animals died within 14 days and the others
suffered stomach lesions.
Genetic
engineering in plants of the Solanaceae family could be
dangerous since disturbing their genetic material through
the process of inserting new gene constructs containing a
battery of genes — including the toxin producing Bt gene —
may trigger off metabolic processes that have been lying
dormant. There are apprehensions that not only could new
toxins develop but that old toxins that were removed by
selective breeding may reappear. Disturbing the cell
metabolism (by genetic engineering) of species that are
naturally genetically hardwired to produce toxins, is
likely to call up old plant toxins in these species.
Testing
for food safety is key in genetically engineered plants;
it becomes more so with the Solanaceae family. At present
biotechnology companies rely on the concept of
“substantial equivalence” to demonstrate the safety of
genetically engineered foods. In this method, the overall
chemical composition of the genetically engineered food is
compared to an equivalent conventional food. If there is
no significant difference between the two, the GE plant is
considered to be safe.
The Mahyco
seed company has also tested its Bt brinjal in the same
way. However, substantial equivalence is a highly
contested paradigm, favored by the biotech industry but
rejected by most countries. This is because there is no
mechanism in such an approach to detect unexpected or
unintended changes like new toxic compounds in the cell.
Apart from
the critical safety issues, there are other questions that
arise with the impending release of India’s first
genetically engineered food crop. There is no system in
place for labeling these foods. Indeed, how can one in the
Indian situation label a vegetable that will be sold from
farmers’ fields, laden into trucks and taken to wholesale
mandis. How will the vegetables on the vendor’s cart or
the corner shop be labeled as GM? The Government of India
recognises the need to label GE food, and its position in
the meetings of the Codex Alimentarius has been
consistently in favor of mandatory labeling.
Accordingly, the ministry of health has drafted rules
under the Prevention of Food Adulteration Act to include
labeling of GE food and food ingredients. But there is as
yet no mechanism in place to label GE food, nor have any
awareness programs been conducted to explain the nature of
GE foods and the need for labeling them. For most
consumers, especially rural consumers, GE foods are a
black box and unless they are made aware of the nature of
GE foods, labelling would be meaningless. Despite these
big gaps in preparedness, the Genetic Engineering Approval
Committee (GEAC) has approved Mahyco’s Bt brinjal for
commercial production.
Does this
mean that the consumer’s right to informed choice about
their food is about to be trashed? This right is enshrined
in India’s Consumer Protection Act and the GEAC approval
will violate the provisions of this Act. Further, labeling
is not just about pasting a colored sticker on a brinjal,
it involves a rigorous process of segregation and identity
preservation (IP) to keep Bt and non-Bt food segregated.
IP is a complex and expensive process requiring separation
of a GM food from non-GM food, starting from farmers’
fields, all the way to vegetable shops. Without going
through this process, labeling cannot be done. Or has the
GEAC planned that all brinjals cultivated in this country
henceforth will be genetically engineered?
And what
about fixing liability for damage? There is no liability
law in India. In the event of contamination of organic
brinjal with Bt brinjal, what will be the process of
recall? Who will be liable to the producers of organic
brinjal? There are no provisions for monitoring the
long-term impact of GE foods on the health of consumers.
In case adverse health impacts are reported from eating Bt
brinjal, who would be liable to pay compensation? How
would the liability be fixed and what would be the
quantum? In the absence of any kind of preparedness or
safeguards, what would be the liability of the government
for approving such food crops? And in the event of damage
caused by Bt brinjal, will Mahyco be put in the dock?
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