
Is our quest for better food creating aliens hostile and powerful enough to overwhelm the environment? In our desire to create an apple without a wormhole are we about to upset nature's apple cart? These are genetically modified organisms (gmos): a tomato with a chicken's gene that can sit on the shelf for weeks without getting spoiled, a strain of maize that can ward off borer attacks, or a soybean produced by a transnational company which is resistant to the herbicide made by it.
Science now has the ability to tamper with the genetic codes of organisms. But what if science, in all its fervour for developing strange new foods, re-enacts the Frankenstein story: mad scientists playing god in their laboratories. Is science strong enough to protect us from the consequences of unleashing these "aliens" into the wild?
The issue has even got the royalty worrying.Delivering the Lady Eve Balfour memorial lecture in 1996, Prince Charles said, "The introduction of genetically modified organisms must proceed with caution to ensure that any benefits now are not at the expense of the safety and well being of future generations and their environment."
Once introduced into the open, a gmo cannot be recalled. The behaviour of a transgenic plant in the open is unpredictable. Gene coding for specific properties and characteristics unrelated to the plant's natural genetic structure are made to become part of the transgenic plant's genome with the help of gene technology. A situation in which the plant acquires certain new traits that make it impossible to predict its behaviour in the long run.
Transfer of the altered gene into the environment and other plants is a distinct possibi-lity under both natural and artificial conditions. The spread of antibiotic resistant markers through bacterial strains illustrates this phenomena. On ingestion, the alien dna may not be completely degraded. Therefore, the potential for gene transfer exists in the gut.
Another development, unforeseen by the proponents of gmos is the ability of dna to survive in the soil or exist in a dormant state in sea water, from where it can go virtually anywhere.
"The environment has also a profound role to play to impart control on the levels of expression of the introduced genes," says P K Ghosh, advisor in the department of biotechnology (dbt), government of India.
"Results of assessment of transgenic plants in one environment may not be valid, therefore, in other environments. Which is why countries sitting on rich plant biodiversity need to be cautious."
"There are also concerns that the use of some of these plants and their products in the human food chain could prove allergic to some people," says Ghosh. "Information on the health aspects is definitely lacking," he adds. However, he maintains that transgenic plants will be part of all future agriculture.
So weeds can acquire strange resistance, people strange allergies and nature can go haywire with modified genes introduced into the environment.
But transnational companies are going ahead full steam. The investments are large and a huge market exists in the Third World which has weak consumer protection laws and limited science capabilities to assess the adverse effects of these new products on humans.
unable to identify the culprit (S litura) that appears only at night, ap farmers resorted to all kinds of pesticides in quantities that astound even the pesticide dealers, who reaped a rich harvest with sales spiralling through the roof. Little did the farmers realise that the pest had developed complete resistance to these and most other pesticides used in the region.| Losses in the field Crop losses in district Warangal, Andhra Pradesh, due to various pests in area, intensity, tonnage and monetary value in 199-98 |
||||
| Name of
post |
Extent of damage in hectares | Percentage of crop affected | Yield loss in metric tonnes | Value in Rs lakh |
| S litura | 86,427 | 80 | 43,213 | 10,371.24 |
| H armigera | 76,490 | 50 | 2,947 | 5,507.28 |
| Prink bollworm | 80,400 | 45 | 36,180 | 8,683.20 |
| White fly and jessids | 70,480 | 30 | 8,810 | 2,114.40 |
Source: Agriculture department of Andhra Pradesh |
||||
cotton is referred to as Tella Bangarum , or white gold, in ap . India has the largest area under cotton cultivation in the world, about 75 million ha, but is fifth in production, which stands at 13,500,000 bales per annum. "The average cotton productivity of the world (552 kg,ha) is significantly higher than that of India," says P C Bansil, director, Techno-Economic Research Foundation, New Delhi. In ap , it covers an area of 0.63 million ha, with a total production of 137,000 bales per annum. Major cotton-growing districts are: Guntur, Prakasam, Khawmam, Nalgonda, Adilabad, Kunrool and Warangal.
The daggers are drawn -- and its a fight to the finish between the biotech industry and the environment groups in Europe. While the former wants to push its products into the market without any discrimination, the latter wants better regulation, the right of the public to know and to choose and more transparency. Finding the going tough, cash-rich multinational companies have been eyeing the Third World countries as a major market, since this is where the larger markets and therefore, larger profits are. Here research is meagre, knowledge is poor and there is hardly any public debate. | Hot plants The status of research in India on GMOs |
|||
| Institute | Plants/crops used for transformation | Genes inserted | Desired trait and current status of the project |
| Central Tobacco Research Institution, Rajahmundri | Rice | Bt gene | Insect pest resistance. Ready for field evaluted |
| Bose Institute, Calcutta | Rice | Bt genes | Insect pest resistance, Ready for greenhouse testing |
| South Campus Delhi | Mustard/rape seed Rice | Bar, Barnase, Barstar disease resistence | To develop suitable hybrid cultivars. Ready for greenhouse experiment |
| National Botanical Research Institute, Lucknow | Cotton | Bt gene | For pest resistance. Laboratory stage |
| Indian Agricultural Research Institute, Simla | Rice | For pest resistance. Laboratory stage | |
| Central Potato Research Institute, Simla | Potato Bt gene | For pest resistance. Ready for green house trails | |
| Progro PGS
(India), New Delhi |
Brassica/Mustard Tomato Brinjal |
Brastar,
Barnase, Bar Bt gene Bt gene |
To develop
better hybrid cultivars suitable for local conditions. To develop pest resistance. Greenhouse experiments in progress To develop pest resistance. Greenhouse experiments in progress |
One of the major decisions taken by the Convention on Biological Diversity (cbd), which came into force in 1993,when over a 100 countries ratified the Treaty, was to work out a foolproof biosafety protocol. Even though Chapter 16 of Agenda 21 of the cbd document deals with the 'environmentally sound management of biotechnology,' the protocol still remains a distant dream. The third meeting of the open ended group set up by the Conference of Parties (cop -countries that have ratified the convention) for the development of a protocol met in Montreal in October, 1997. Due to lack of consensus, most of the text was bracketed, which will now form the basis for further negotiations when the group meets again in May, 1998. The sailing promises to be all but smooth.
Should gmos be banned or should caution be exercised in their introduction into the environment? If so, the need of the hour is a strong law to protect countries of the South.