BioLines
Vol. 42 Aug 2003 Editor: M. Koch |
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AfricaBio Biotechnology
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CONTENTS:
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The status of biosafety
in
Tawanda Zidenga,
ISB News Report, Jul 03 http://www.isb.vt.edu/.
From AgBioView 17 Jul 03. Tawanda Zidenga, Crop Science
Department,
Agricultural
biotechnology holds a great promise for
Agricultural and social systems in
In
some sectors, GMOs are still being identified with the terminator technology
(which has never been commercialized), leading some
people to fear that these technologies could create a kind of dependency on
large seed companies, driving farmers into a technological fix. While the
potential role of the terminator technology in biosafety has been suggested, it
cannot be recommended under these circumstances. Second, many of the most
important crops in
Food aid. Food security and food safety offer regulatory
challenges in
The obvious differences in molecular capacity between western countries and
developing nations in
Public attitude towards GM foods in
While the objective of harmonizing biosafety legislation is praiseworthy, the
OAU model ignored existing model legislation in several countries (SA,
It is a point of consensus that improving food security and agriculture in

SA has developed genetic engineering techniques and capacity over the last 3
decades. However, this technology is only now being applied or commercialized.
There are about 55 companies involved in biotechnology, with products mainly in
the plant and medical sectors. In 1998, the first commercial GM crops were grown in SA under
a general release permit. The GMO Act of 1997, which was implemented in 1999,
controls the import of live GM products and is aimed at protecting the consumer
as well as the environment. This Act does not cover human cloning, but covers
most other products of modern genetic modification technology.
It was proposed during this year's World Life Sciences Forum (http://www.biovision.org) in Lyon, France,
that regulatory mechanisms and biosafety measures at national and international
levels need to be harmonized and a global system developed, building on the Biosafety
Protocol. Decision-making requires public participation, but public participation
demands public genetic literacy. Along with the development of biosafety
frameworks in
Sources:
1.
Morris EJ and Koch M. (2002) Biosafety of GM crops-an African perspective. ABN
4: 102.
http://www.agbiotechnet.com/reviews/Abstract.asp?ID=188
2. Mclean MA, Frederick RJ,
3. AfricaBio
(2001) Submission on the OAU model law on biosafety. http://www.africabio.com
4. Conway G. (2003) from the
green revolution to the biotechnology revolution: Food for poor people in the
21st century. Woodrow Wilson International Centre for Scholars, Director's
Forum,
5. AfricaBio
(2003) SAn biotechnology. http://www.africabio.com/policies/biotechsa.shtml
Richard Owen. The Times, 5 Aug 03, AgBioView 5 Aug 03
"The Book of Genesis clearly establishes the
domination of man over nature. God has entrusted mankind to preserve nature
but also to use it."
The
Archbishop Martino said the Pope was greatly interested in new technologies for
food development as part of a policy of sustainable agriculture. He noted that
24 000 people died every day from starvation. Archbishop Martino, who until
last year was the
Archbishop
Martino said the Pope had been influenced by the growing weight of advice from
the
Scientific progress was part of the divine plan, he said. "The introduction
of new and more efficient technologies such as second and third-generation GM
foods, in harmony with sustainable development, is not a threat but a
benefit." Carlo Bernardini, editor of
"With my additional income, I've remodelled my
kitchen, purchased a new tractor and I'm able to spend more time with my 4
children," Thandiwe Myeni, Farmer and School Principal, Makhathini
Biotech "True
Stories from the Frontier”
Dean
Kleckner, Agweb.com, 31 Jul 03
The frontier of biotechnology is in a place called
Bobodioulasso. That's the name of a town in the West African nation of
Consider the case of Thandiwe Myeni, a widowed school principal in SA. When I
talked to her, she told me that like many of her neighbours in Makhathini
Flats, she is a cotton farmer. She's been doing it for nearly a decade. In the
past, however, growing conventional varieties of cotton, she only planted 2 to
3 hectares. It just took so much time and the yields were so low. As every
farmer knows, you have to maximize your resources if you hope to be successful
in agriculture. Myeni wasn't able to do this because the work was so demanding.
Then, in 1997, she started planting bt cotton, which operates on the same genetic
basis as the bt maize so many American farmers grow. The results were amazing.
Her yields shot up by as much as 50 %, her pesticide applications plummeted and
she was able to plant all 10 hectares of her property. Best of all, she had
time left over to spend with her family.
A study by the
Is it any wonder the cotton farmers of
of state called for a comprehensive strategy on biotechnology and GM crops.
They're planning to appoint an advisory panel to study the issue and make
recommendations.
John Mugabe, one of the people behind this idea, has promised that the group
will base its study and comments on "evidence, not perceptions." That's
a worthy charge to keep, because even though some people hold the faulty
perception that biotechnology is not safe, all the evidence says
there is no problem at all. It also makes economic sense for farmers. Anybody
who doubts this fact should talk to Myeni and Buthelezi. Unfortunately,
activist groups continue to spread fear there's already a call for African
countries to adopt a 5-year moratorium on biotech crops. That's exactly the
wrong approach. The continent of
It's
also misleading. The people who want a moratorium don't really want a moratorium
they want a
permanent ban, but they won't come out and just say it. This talk of a "moratorium"
is simply a strategic bluff to make their unreasonable demands sound moderate. I'll
take my stand against Greenpeace and the professional complainers’ anyday so
long as I can stand with the farmers of
Truth
About Trade and Technology (www.truthabouttrade.org) is a
national grassroots advocacy group based in
Let
Dr.
Francis Nang'ayo, New York Post, 19 Jul 03. From AgBioView 19 Jul 03 (shortened)
http://www.nypost.com/postopinion/opedcolumnists/37982.htm
The focus of Americans in the aftermath of President Bush's trip to
modified foods, which have been stymied in
Molecular biology-based research has developed GM crops with
built-in protection against pests and diseases without the need of vast amounts
of costly pesticides. One class incorporates an herbicide resistance gene. It
allows farmers to spray herbicide on their fields to kill weeds, such as
Striga, or purple witchweed, that infests the root systems of cereal crops,
stunting their growth and leading to crops being lost. In addition to creating
pest and herbicide-resistant plants, genetically-modified technology can also
produce plants with improved nutritional qualities. One of the most
exciting developments so far has been the introduction of genes into rice that
result in enhanced supply of Vitamin A and iron. This "golden" rice
would thus fight both childhood blindness and anaemia and reduce maternal mortality
and morbidity.
No technology is absolutely risk free. But
Dr.
Francis Nang'ayo, a principal research scientist in the Biotechnology Research Programme
at the Kenya Agricultural Research Institute, is a contributing writer to
TechCentralStation.com.
New EU food
body sees no reason for
Jeremy Smith, Reuters, 11 Jul 03
EU officials
are predicting the bloc will start authorizing new GMO strains by the end of
the year but that some anti-GMO countries, like
A central tenet
of EU law is that products which have been approved for sale in the bloc must
have free access to all markets. Countries can impose emergency bans if they
provide new evidence the products could harm their environment. The governor of
Later this
month, the Commission is due to adopt guidelines on how farmers can grow
conventional, organic and GM crops in any kind of proximity an issue as
co-existence. The EU's 15 farm ministers will discuss these guidelines in Sept.
EFSA said the dossier of evidence that
Science Encyclopedia,
Dorling Kindersley
Aphids produce young by
parthenogenesis (clones) when there is an abundance of food. As food dwindles they return to sexual
reproduction.
Scientists find gene that protects against potato blight
Terry
Devitt, University of Wisconsin, AgBioView, 14 Jul 03 (shortened)
Scouring
the genome of a wild Mexican potato, scientists have discovered a gene that
protects potatoes against late blight, the devastating disease that caused the
Irish potato famine. The discovery of the gene and its cloning by scientists at
the
"We think this could be very useful," says John Helgeson, a
UW-Madison professor of plant pathology, a research scientist with the US Department
of Agriculture and a senior author of the PNAS paper. "No potato grown in
the
The world's most serious potato disease, late blight, is best known as the cause
of the Irish potato famine. Seeming to appear from nowhere in 1845, the fungus
wiped out the staple crop of the densely populated island nation, causing mass
starvation over 5 years, killing more than a million people and sparking a wave
of immigration that had worldwide social consequences. More than 150 years
later,
The gene that protects potatoes from the fungus comes from a plant that scientists
believe co-evolved in

But despite the huge economic and
environmental gains that could be realized, it is unclear if the technology
will be widely utilized. Because of European fears of GM crops, and the control
exercised over growers by a few large buyers, there is currently no engineered potato
in commercial production anywhere. The use of conventional breeding techniques
to move the newfound blight-resistance gene into the few dominant commercial
varieties popular in the
Revving up the Green Express
Deborah A. Fitzgerald, The
Scientist, Vol. 17 no. 14 , p45; 14 Jul 03. From AgBioView
Agricultural researchers have designed a wide variety of GM plants with traits
deemed beneficial to those who grow, market and
consume them. But plants have another role in biotech: Members of the green
kingdom also can be used, quite literally, as manufacturing plants for
large-scale, recombinant protein production. Such proteins have potential
industrial, research, and clinical applications. Plant expression systems may
ultimately help the pharmaceutical industry meet the rising demand for
therapeutic proteins. "Monoclonal antibodies (mAbs) are one of the fastest
expanding categories of protein drug," says Lee Quarles, spokesperson for
Monsanto Protein
Technologies. With analysts predicting that more than 70 therapeutic mAbs will
be on the market by 2008, requiring production of over 10 metric tons of mAbs
annually, plant-based expression could decrease manufacturing costs between
four- and five-fold over traditional cell culture techniques, he says,
depending on the scale of operation and the particular protein and expression
host employed.
Other advantages include easy scalability, high product yields, reduced risks
of contamination with bacterial endotoxins or mammalian pathogens, proper
folding and assembly of protein complexes, and the ability to perform most
posttranslational modifications. But plants have downsides too. Companies using
plants for protein production must guard against a number of potential safety
issues, including contamination with residual pesticides, herbicides and toxic plant
metabolites. In a broader context, using transgenic field crops to produce
recombinant proteins invites the ire of those opposed to GM plants in general,
who worry that transgenes and their encoded proteins will
spread in the environment, ultimately affecting nontarget organisms.
To address this latter concern, scientists are pursuing several options, including
asexual reproduction, male sterility, "suicide" genes, plant host
genomes incompatible with nearby related species, chloroplast genetic engineering,
methods for removing or doing without selectable markers, and postharvest
expression systems. As the US Food and Drug Administration and the US
Department of Agriculture (USDA) establish a growing body of safety guidelines,
several companies are beginning to carefully move forward in developing,
testing and utilizing plants for protein expression.
Nevertheless, it rarely hurts to hedge one's bets. "Many pharmaceutical companies
are opting to prepare for projected increases in the demand for protein
therapeutics by means other than, or in addition to, plant-based expression,
including investing in additional infrastructure for producing
proteins via already widely used methods such as cell culture and/or exploring
alternative approaches, such as protein production in transgenic animals,"
says Nate Cosper, industry manager for drug discovery and clinical diagnostics
at Frost & Sullivan, a global market-consulting firm.
Plant researchers have developed a wide range of tools and strategies for
protein expression in plant species such as maize, rice, wheat, tobacco,
alfalfa, tomato, potato, banana, oilseed rape, and soybean. Transgenes can be
stably introduced by using the soil pathogen Agrobacterium tumefaciens, or via direct transfer
procedures such as electroporation, microinjection, or "biolistic"
particle bombardment (biolistic is a coined word derived from biological and
ballistic). Alternatively, plants can host transient gene expression driven by modified
viral vectors. Protein expression can be cytosolic throughout the entire plant,
or targeted to either specific plant organs or intracellular compartments. Proteins
can be expressed directly within the plastids (for example, chloroplasts),
which have their own separate genomes.
http://www.the-scientist.com/yr2003/jul/lcprofile1_030714.html
SNIPPET: AfricaBio staff facilitated at an African
Seed Trade Association workshop in
GM cottonwood reduces
mercury in soils
CropBioechNet, 25 Jul 03
Researchers from the University of Georgia have been able
to transform cottonwood plants with mercuric ion reductase to help reduce the
presence of ionic mercury in contaminated soils and wasteland. Scott Merkle and
colleagues noted that mercury contamination is widespread both in the
For more details, email Scott Merkle at smerkle@uga.edu.
US reacts to EU GMO rules - labelling
and tracing plans are criticized, but new UN rules may strengthen EU position.
Andrew Scott, ©2003, The Scientist Inc. in association
with BioMed Central. 9 Jul 03 (shortened)
The vote was intended to clear the path to removing
the EU's de facto moratorium on new GM approvals, in place since 1998. This
moratorium arose when some member states of the EU blocked new approvals
because of fears about safety and consumers' right to know if GM crops were
present in foods or had been used in their production. This has been
interpreted by the
Richard Mills, of the US Trade Representative's office,
said that the new rules would not be sufficient for the WTO complaint to be
resolved. In a statement released after the vote, he said the new labelling requirements should be nonprejudicial and
feasible. "We are concerned that the proposed traceability and labelling does not meet this standard," he said. The
David Bowe of the European Parliament's Committee on
the Environment, Public Health and Consumer Policy does not see much
hope for things changing to suit
Simon Barber of EuropaBio, the European Association
for Bioindustries, believes the new rules meet the demands of the member states
that have been blocking new approvals. "We now see no reason for the
continued moratorium," he told The Scientist. The reaction of the
Bob Stallman, President of the American Farm Bureau
Federation, said in a statement: "The EU has only made a bad situation worse.
It's commercially impossible to comply with the rule, it's not justified by any
scientific analysis and it's just as WTO-inconsistent as the biotech ban that
the EU says it will replace." European anti-GM pressure groups are taking some comfort from the new EU rules but are far from satisfied.
Friends of the Earth Europe (FoEE) would have preferred a threshold of 0.1%
rather than 0.9%, in order to make it as strict as current testing techniques
allow.
But they gave the rules a general welcome. "This
new legislation is a welcome step in the right direction and will allow
countries to take action to protect our food and farming from genetic
pollution," Geert Ritsema, FoEE's GMO campaign coordinator, said in a statement.
"It will also give consumers and farmers more information so that they can
choose whether or not to take part in the biotech industry's massive GM
experiment."
Muslim council says yes to GM foods
CropBiotechNet, 11 Jul 03
The Indonesian Ulemas Council or MUI, the highest Muslim
body in the country authorized to release religious rulings or labels of halal
(lawful or permitted) on processed food products distributed in the country,
has given the go-signal for imported GM foods. The Jakarta Post quoted
Professor Aisyah Girindra, head of medicine and food supervision at the MUI, as
saying that "Despite there being no official ruling on GMO-based food
products, as long as it comes from plantations, such as soya bean or maize,
there are no problems." Aisyah
noted that without a ruling to the contrary, Indonesian Muslims remain free to
consume GMO products. For the Muslims, all foods are considered halal except
for a few which include swine/pork and its by-products, animals improperly
slaughtered, and food contaminated with any of these products.
For the full report visit http://straitstimes.asia1.com.sg/asia/story/0,4386,198597-1057701540,00.html?
Biotech cuts food
prices
Doug
Zellmer,
Biotechnology is changing the face of farming and has a lot to do with keeping
the cost reasonable for your morning bowl of cereal. Farmers are planting
disease, insect and drought-resistant maize and getting higher yields per acre,
which in turn have provided a more than ample supply of
grain for everything from cereal to cattle feed. More supply than demand
generally means consumers won't have to pay a high price for the products they
buy at the grocery store, said exhibitors at Wisconsin Farm Technology Days
near Bear Creek. It costs more for technology, but farmers and consumers
reap the benefits, said John Riemer of Golden Harvest Hybrid Maize. He was one
of more than 600 exhibitors at the 3-day agriculture expo.
He said based on $200 to plant an acre of maize and with a yield of 150 bushels
an acre, farmers are looking at a per-bushel cost of $1.33. "As new
technology comes out it could cost $220 an acre to plant, but the farmer will
realize 180 bushels per acre and a $1.22 per-bushel cost of production. That's
10 % lower," said Riemer. "If the farmer can lower the cost of
production they can help maintain lower food prices." The percentage of
disposable income spent for food in the
Statistics from the USDA indicate the average American earned enough income to
pay for his or her family's annual food supply this year by 6 Feb, which is 37
days. In 1990 it took 42 days and 65 days in 1960. "Food costs over the
past 10 years haven't changed much and I don't see prices changing that much in
the next 10 to 20 years," said Ron Stanke of Golden Harvest Hybrid Maize.
Stanke said what farmers are paid is only a small part of the consumer food
dollar. There are many other factors, including processing, handling and
transportation costs to get products onto store
shelves.
There
are few that would argue biotechnology doesn't have benefits. The EN
parliament on 2 Jul 03 enacted a rule that would require products containing
more than 0.9 % biotech ingredients to be labelled as containing GMOs. The
American Farm Bureau Federation has called on the Bush administration to
continue to aggressively prosecute the case it filed last month in the WTO
against the EU's de facto ban on biotech imports. "With this new labelling
and trace ability requirement, the EU has only made a bad situation
worse," AFBF President Bob Stallman said in a written statement.
"It's commercially impossible to comply with the rule."
GE food safe as rest
of menu
Tasmanian
Country, 18 Jul 03, AgBioView 19 Jul 03 (shortened)
One of Australia's top scientists has admitted there were no guarantees GM
foods were 100% safe. However,
case of trouble with GE foods in the 6 years of their sale.
"Although I can't give you an absolute that there will never be any damage
to anybody, I can say that these foods are as safe as any other food on the
market," Dr Peacock told the National Press Club on Wednesday.
"And, as I
mentioned, in 6 years, with billions of meals having been eaten, there's not a
single case of trouble."
The Office of the Gene Technology Regulator is expected to make a final decision
within a week on a bid by Bayer to release a genetically altered canola
variety. If approved, it would be the first GE food crop released for
commercial use in
Dr Peacock said ready markets were found for the 58 million hectares of transgenic
crops grown in the past year, including canola, maize and soybean, with no
reports of adverse health effects. More than 30 billion GE meals were
eaten in the past 6 years. Dr Peacock accused politicians and the media of
peddling inaccurate information, putting fear and emotion into the
community. "The claims are mischievous and misleading," he
said. Regulatory bodies made sure every potential hazard was examined, he
said. Dr Peacock said food could be used in preventative medicine.
In
EU sets rules for embryo use in stem cell
research
Aine Gallagher. Reuters. 9 Jul 03
The European Commission
backed guidelines to regulate the use of embryos in EU-funded research, hoping
to heal divisions between Catholic states and scientists. The
Under the draft rules, EU
scientists would only receive funding from Brussels if they use stored or
frozen embryos left over from fertility treatment and created before 27 June
02, the date when the EU agreed on its research programme. "By setting
strict ethical rules for such funding, the EU contributes in a responsible way
to advancing this science for the benefit of patients across the world, while
at the same time ensuring that it takes place within a clear ethical
framework," EU Research Commissioner Philippe Busquin said in a statement.
A maximum of 2.2 billion euros is available in EU funds. To date,
The Commission's draft
guidelines need the approval of the European Parliament and a majority of EU
member states, whose research ministers will debate the proposal in November. Busquin
said he hoped for final agreement by the end of 2003, but feelings run high on
the issue. "
Is GM food a poison?
Father
Leo D'Souza, S. J., Promotion Lustitiae, Social Justice Secretariat, Society of
Jesus (
I am writing this response as a Jesuit plant breeder and a Jesuit Biotechnologist.
Plant breeding is in principle modifying the existing genome of plants using
various techniques. Genes have been modified by nature, plant breeders and, in
recent years, by transgenic technology.
Genetic modification
in nature.
In
nature genetic modification occurs due to abnormal crosses i.e. crosses between
plants belonging to different species or even genera, which normally do not
mate with one another. Hard wheat and bread wheat are the result of
introduction of genes of a wild grass, Aegilops, into primitive wheat. Modern
maize is the product of a cross between primitive maize with Tripsacum a wild
grass. Both wheat and maize are therefore essentially GMOs. Genetic
modification in nature has also occurred as a result of various stresses such
as temperature, chemicals and radiations. This is responsible for the vast
divergent genetic pool that is presently available in nature.
Genetic modification
by classical plant breeders.
Classical
plant breeders have used the same techniques to create new plants or to
transfer a
desired gene from a wild relative to a cultivated plant. Triticale and Secalotricum
are crosses between wheat and rye and have been accepted and cultivated in
spite of being GMOs. Genes for
disease resistance, for dwarf or tall varieties, have been inserted into cultivated
plants. We would not have many of our present cultivars without modifications
being introduced into their genetic make up. The dwarf varieties of rice and
wheat that ushered in the Green Revolution were the
result of mixing and modifying the genomes of a wide variety of these plants.
The process of identifying and selecting the plants with the desired character
however is very laborious and time-consuming. As in nature, plant breeders have
created a wider gene pool by inducing
mutations using chemicals and radiation.
Genetic modification
using molecular techniques.
Molecular
biologists have helped to refine the techniques used by classical plant
breeders. It is no
longer necessary to mate two individuals and to limit the mating ton plants,
which are able to cross with one another. Specific genes can be identified,
isolated and multiplied by molecular methods and can be transferred to another
organism with the aid of tissue culture techniques. The problem however is to
identify and select plants which have the new gene. For this, the desired gene
is tagged on to a marker gene which can be easily, that is, visually or
chemically detected. The first marker gene which biotechnologists hit upon was
a gene inducing herbicide resistance. Plants, which are putatively transformed,
were grown in a medium containing the herbicide. Only such plants which had the
Herbicide Resistance Gene (HRG), and with it the desired gene, survived.
This technique unfortunately has some drawbacks. It is possible that the plants
tagged with the HRG will eventually dominate, resulting in a herbicide
resistant race. A discovery that genes can be transferred laterally and can be
absorbed by organisms from the soil or water adds to the fear that these genes
may be transferred to other cultivars. However, scientists are aware of the
problem and are now using alternate marker genes like the green fluorescent
protein gene. Techniques have also been developed to withdraw the marker gene
once its function is over.
Another
fear is that genes, which are introduced from other organisms, could induce
allergies in persons who use these as food. The basis of this fear is a gene
from a Brazilian nut, which enhances protein production but causes allergy in
some persons. People who were allergic to the nut fell
sick when they ate products from plants transformed with this gene. That is why
it is necessary to have a warning label while marketing food containing foreign
genes. This certainly does not mean that all people who eat food with this gene
will be sick.
A similar fear is that if a gene produces a substance that is toxic to pests,
as in the case of the Bt gene from Bacterium thuringensis, this substance could
also be a poison for people who eat the product of the plants modified with
that gene. This fear is the reason why many people reject GM maize which has
the Bt gene. The residues of this bacterial spray
cannot be fully eliminated and so there is a chance it might get into the food
chain. But no one has yet protested against its use as a spray on cultivated
plants. In recent years the Bt gene has been spliced
and built into various plants. Insect larvae of some genera die when they feed
on these plants. The gene is however highly specific in its action and requires
for its expression a high pH environment which is not available in humans.
Studies made so far do not indicate that there is any toxic effect on human
beings when they eat food with a Bt gene, whether
sprayed on the plants or built into them.
Our Experience and Experiments
In
have bought spurious seeds from fake seed companies and the poor cotton crop of
this season has been used as a cudgel with which Bt opponents can browbeat the
Bt proponents. However the Bt gene is only an insecticide and, like all other
insecticides, is not directly responsible for the
quality or yield factors of any crop. The overall poor cotton crop is a result
of the prolonged drought and, to some extent, the use of spurious seeds.
Compared to genuine Bt cotton, plants without the Bt
gene or from spurious seeds have shown a much lower yield due to drought and
insect attacks.
In our Laboratory we are working on the transformation of 3 species of plants.
Cashew is a commercially useful plant fetching much-needed foreign exchange for
the country. Besides, it provides work for a large number of rural women. The
cashew trees grown at present are low yielding, the yield is further reduced
due to pests, and the raw nuts produced are not enough
to meet the market demand and to provide regular work for women. We have established
a protocol for large-scale multiplication of elite, high-yielding cashew trees
using tissue culture techniques. We are now trying to introduce an insect
resistance gene into the cashew plant, for we find that at present the
plantations need to be frequently sprayed with heavy doses of insecticides.
Spraying brings down the insect attack to some extent but constitutes a health
hazard to people in villages around the plantations. Cases of malformation of
neonates, deformities and various diseases in grown ups have been reported. An
insect resistance gene built into the plant will not only control insect
attacks more efficiently but will also help to avoid risks to the health of the
people.
Chilli, Capsicum annuum, a condiment used by the people of this region, is attacked
by pests that bring the yield down considerably. Heavy doses of pesticides are
needed to prevent losses. Some pesticide residues remain on the pods even after
they have been washed and enter the food chain of
humans. We are currently engaged in experiments to transform the Chilli plants
by introducing pesticide resistance genes that will prevent loss of the crop as
well as contamination of human food through pesticide residues.
Ragi, Eleusine coracana, a coarse grain, cultivated and eaten by the very poor
people of the state of Karnataka, is attacked by several insects that destroy
the crop, causing great losses to the poor farmers. We are studying the possibility
of inserting an insect resistance gene into Ragi to
control losses arising from insect attack. My team members and I are convinced
that our work is economically and environmentally useful. It will not only help
prevent crop losses due to insect attacks, but will also minimize the use of
pesticides, promoting thereby a safer environment.
Conclusion
Introduction
of GM food has raised a number of fears, some genuine and some irrational.
Human fears, whether genuine or irrational, have to be attended to. New
pharmaceutical products are tested for their efficacy as well as their side
effects before being marketed. Any new variety of plants is tested for its
qualities before being released. So too, GM plants, before they are approved
for cultivation, need to be tested for their quality, and particularly to ascertain
whether they are in any way toxic to humans. Proper precautions and controls
have to be exercised before they are marketed. It is certainly self-defeating
if we wholly ban all GM organisms on account of certain problems and fears.
The author did his doctoral studies in plant breeding at the Max-Planck Institute
for Plant Breeding in
A C Augustine, M Anuradha and Sashikiran Nivas.
Leo
D'Souza, S.J., Laboratory of Applied Biology (Dr Küppers Biotech Unit), St.
Aloysius College, PO Box 720, Mangalore 575 003 INDIA<leodsouza@hotmail.com>
GM cotton crops halve
pesticide use
Sydney
Morning Herald, 1 Aug 03, AgBioView 5 Aug 03
The introduction of GM cotton crops to Australia has cut the use of chemical
pesticide by about half, the country's leading science organisation said
yesterday. Pesticide use had fallen by about 50% where US-based Monsanto Co's Ingard
GM was planted, compared with conventional cotton, the Commonwealth Scientific
and Industrial Research Organisation said. Ingard GM was introduced in 1996 to
Bollgard II, a new version of Monsanto GM cotton that will be commercially available
in
Bollgard II was developed by inserting two insecticidal genes from the soil
bacterium Bacillus thuringiensis into cotton, killing cotton's major insect
pest Helicoverpa when it eats the crop.
Helicoverpa is the Australian equivalent of the worldwide scourge of cotton
crops, the boll weevil.
General release of Bollgard II was approved by the Government last year and in Apr
2003 it would comprise about 15% of the total crop, Constable said. By May 2004,
Bollgard II could supply 80% of the cotton crop as Ingard
is phased out of production to minimise the risk of
developing resistance to the bacterium. Use of Ingard was restricted to 30% of
Jobs
1. Industrial microbiologist/biotechnologist (Syn/IMB/01)
Synexa Life
Sciences:
Synexa Life Sciences is a biotechnology company currently
focused on the development of bioprocess intensification technologies for the
production of high value natural products from bacteria and fungi. The company has a post
available for a skilled and enthusiastic self motivated Industrial
Microbiologist/Biotechnologist with good organizational, project and time
management skills. The incumbent microbiologist will be responsible for
leadership of projects in the following areas:
The
position will require the incumbent to possess skills in:
Qualifications and Experience: PhD in
Microbiology/ Biotechnology or M.Sc. and 5 years
experience in relevant area. Compensation: Salary scale is negotiable based
upon experience and the quality of the candidate. Contact Information: Please
forward CV’s to Dr. Justin Devine via e-mail at jdevine@synexagroup.com.
Please quote reference number on all communications. Closing Date: 31 Aug 03.
2. Engineering Technician (Syn/Eng/01)
Synexa has an
engineering technician post available for an innovative person with good
practical skills eager to work in an R&D environment. The incumbent
engineering technician will assist the bio-process development team with
laboratory and pilot plant scale module design,
materials selection and module manufacture. The position requires skills in
fluid dynamics, flow monitoring devices, process design and integration as well
as gas – liquid mass transfer. Preferably the candidate should have practical
experience in gas - liquid contactor design and operation; polymer and steel
module seals; resins and sealants; and close tolerance machining, fitting and
component design.
Compensation: The
position is available immediately and salary scale is negotiable based upon
experience and the quality of the candidate. Contact Information: Please forward CV’s to Dr. Justin Devine via e-mail at
jdevine@synexagroup.com. Please
quote reference number on all communications.