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November 27, 2006

News: As millions starve, alarmists block famine solutions

In this article, Jay Ambrose criticizes anti-biotechnology activists for their tendency to downplay the potential benefits of genetically modified foods. Jay argues that anti-biotech groups like the Greenpeace and Friends of the Earth deny hunger-stricken populations, mostly in developing countries, from benefiting from genetically modified foods.

By Jay Ambrose
Daily SouthTown

As some of us in this blessed land of ours wonder in the aftermath of Thanksgiving whether we overdid the calories, we might consider that millions in the Third World go to bed hungry every night and that there's an exciting means of assisting them being opposed by anti-modernist environmental alarmists with arguments as shameful as their stance.

The means -- it is not entire or complete, but potentially very, very powerful -- is the technology of implanting genes to enhance an agricultural product in any number of ways, perhaps making it more resistant to pests or disease, maybe even putting selected vitamins into it so those eating it will be more resistant to disease.

As much as has been done with Golden rice, a bunch of journalists were told at an expenses-paid Montana conference sponsored by the Property and Environment Research Center. Bill Dyer, professor of plant sciences and pathology at Montana State University, explained that this rice -- which includes genetically inserted vitamin A -- can help protect the millions of people in Africa and Southeast Asia who die or the hundreds of thousands who are rendered permanently blind by vitamin A deficiency every year.

The professor's further remarks supplemented other things I previously had learned about genetically modified foods through reading and interviews -- there are all kinds of safeguards in place to protect against dangers most scientists consider relatively remote, and millions of Americans consume these foods daily without as much as a burp. For people in the Third World, they could be a godsend -- lifting farmers out of poverty as they get more yield per acre or, more specifically, contain a disease now destroying bananas on which hundreds of millions depend for nourishment and their incomes.

The sad, the reprehensible, fact, however, is that various environmental groups and others have made wild, unsubstantiated claims about the dangers of biotech, and sometimes make it erroneously sound as if the technology's only supporters are right-wing ideologues or paid stooges of money-grubbing corporate interests. They not infrequently have indulged in outright sophistry and have engaged in numerous attempts to obstruct development of these foods.

At the Montana conference, I encountered one of the fallacious arguments sometimes put forth by groups such as Greenpeace and the Sierra Club. I had been going on at the breakfast table about how George McGovern -- former senator, former presidential candidate, former U.N. food ambassador -- had challenged fellow liberals at a hearing, telling them the best science appeared to confirm how biotech could help fill the bellies of millions of children in Africa and elsewhere without risks of unmanageable proportions. Genetically modified foods were crucial for the poor of this world, I asserted. Nonsense, one conference participant said. There is plenty of food in the world right now. The issue is distribution.

Now, I may have been heaping it on some, and it is true in my view that Third World hunger has no long-term fix that leaves out decent government, free trade and market-oriented economies. But to talk about "distribution" as an answer is to talk about accomplishing something that never has been accomplished in the history of humankind and that likely would require coercive measures almost sure to diminish the food supply over time and disrupt agriculture in Third World lands. Even if you are convinced this utopian glory soon will be ours, is it unwise to assist millions of people in the meantime?

Already, alarmist groups have exacted tragedy as the price for their exaggerated fears and peculiar reasoning -- once by persuading the president of Zambia to decline genetically modified corn from the United States during a famine.

"There is something insane about food aid rotting while people starve due to disinformation campaigns," wrote a Tanzanian physician, Michael Mbwille, as quoted in an article on the subject, and, yes, there is, and, yes, it's something worth thinking about in these post-Thanksgiving days.


Jay Ambrose, formerly Washington director of editorial policy for Scripps Howard
newspapers and the editor of dailies in El Paso, Texas, and Denver, is a columnist living in Colorado. He can be reached at speaktojay@aol.com.

November 22, 2006

News:Bt maize: No risk to woodlice

GMO Safety

Woodlice are more likely to be found underneath damp stones in the garden than on farmland. These decomposers are not widely found in maize fields, but do occur in large numbers at the edges of piles of maize litter. Nevertheless, woodlice are regarded as model decomposers and have also been the subject of a few studies looking at possible effects of Bt maize.

Most studies on the effects of Bt maize on non‑target organisms have focussed on earthworms, springtails and microbes from the decomposer group. But woodlice also play an important role as decomposers in soil ecology. Their main task is the primary decomposition of dead plant material, which then becomes food for other decomposers such as mites, springtails and microbes.

A study published in August 2006 looked at the effect of Bt maize on two species of woodlouse, Trachelipus rathkii and Armadillidium nasatum (pill woodlouse). These two species of woodlouse make particularly suitable test organisms for the USA, since they are widely found in the maize-growing regions there.

In this laboratory study, leaf material from two Bt11 maize varieties, two Mon810 maize varieties and the corresponding isogenic lines were fed to the woodlice and their survival and growth was measured over an eight-week period. Both the plants and the woodlice were also examined for changes in nutrient content.

In 2000 and 2002, studies were conducted at the University of Bern with another species of woodlouse Porcellio scaber, also using Bt maize varieties that produce the Bt toxin Cry1Ab (Bt11 and Bt 176), as well as several conventional maize varieties. No Bt effect was observed, but there was a significant varietal effect, which the authors of the study attributed to variations in nutritional quality of the different varieties.

Mortality: In the current study no effects on mortality were observed for the two woodlouse species T. rathkii and A. nasatum. However, increased mortality was found in T. rathkii in additional tests using pure Bt toxin at the highest dosage. According to the authors, this could be an indication of chronic toxicity, which would have to be studied in more detail. But they also point out that this dosage is significantly higher than that which could arise in the field.

Weight increase and growth: No effect on weight increase or growth was observed for A. nasatum.

For T. rathkii the weight increase with all maize variants – irrespective of whether they were with or without Bt - was generally significantly lower than for the controls, where the woodlice were fed on guinea pig food that contains around 10 times more protein than the maize fodder provided.

No statistically significant difference between the Bt and corresponding isogenic lines was found. More significant differences were found between the different varieties. However, since a (statistically insignificant) tendency for more rapid weight increase and more rapid growth was observed for T. rathkii with the isogenic lines, further studies were conducted using pure Bt toxin. No Bt effect was demonstrated, but an effect on mortality was observed at the highest dosage (see above).

Moulting: No effect on moulting was found in the two woodlouse species T. rathkii and A. nasatum.
Einfluss der Nahrungsqualität von Mais auf Zersetzer

Effect of the nutritional quality of maize on decomposersIn this study too, significant varietal effects were found, but no significant Bt effects. The nutritional composition of the plants was therefore also examined. Different varieties have different nutritional qualities. For example, some Bt varieties are of higher nutritional quality whilst others are less suitable as a food source. In addition, individual species react differently to the food provided, as the differences in the two woodlouse species A. nasatum and T. rathkii show.

Significantly less protein was found in all maize variants compared with the control feed. Some Bt maize lines have a higher percentage protein content than their isogenic parent lines. However the protein content had no effect on the growth or weight increase of A. nasatum. With Trachelipus rathkii on the other hand, a marked positive correlation was observed between the protein content of the feed and weight increase and growth. The total protein content in the woodlice themselves, however, proved to be largely unrelated to the feed variants.

The authors conclude that differences in the nutritional composition between Bt lines and isogenic lines can lead to differences in the effects on non-target organisms that are not attributable to the Bt toxin itself. However, they stress that in addition to a control with the isogenic line, further varietal pairs and in particular an optimum food source should also be used as a control in order to be certain whether an observed effect is actually a Bt effect.

November 21, 2006

News:Genetically Modified Cottonseed May Provide Human Food

KTV Channel-3

Washington (AP) - For thousands of years, cotton has been one of the most important crops for clothing and shelter. Now, it might also become a source of food.

A chemical called gossypol makes cottonseed inedible for humans. However, some is used in feed for cattle, which are less affected by the toxin.

Now, Texas A-and-M University researchers have genetically modified cotton to produce seeds with little or no gossypol. It's a step they say could help provide valuable protein to millions of people.

Their findings are reported in Tuesday's issue of Proceedings of the National Academy of Sciences. Keerti Rathore of A-and-M's Institute for Plant Genomics and Biotechnology says the modified plants still have gossypol in their stems and leaves where it helps resist insects. The chemical is significantly reduced in the seed -- which is 23 percent protein.

Cottonseed is pressed for oil, and in the United States about half of the remaining meal goes into animal feed. Rathore says that with the gossypol removed, the meal can be ground into flour and used in cooking.

Rathore's research was funded by the Texas Cotton Biotechnology Initiative, Cotton Incorporated and the Texas Agricultural Experiment Station.

November 20, 2006

A Note To All My Readers

As I’ve participated over the past year in this discussion, I’ve learned a great deal and met many interesting people. My work schedule is preventing me from giving GMO Food for Thought the attention I think it deserves. One of the most credible and responsible groups with whom I’ve started corresponding has agreed to help update and take on day-to-day responsibilities by sharing the comments of their ongoing academically oriented discussions about GMOs. As time permits I’ll be posting; however, you’ll soon see new content and expanded views.

Alisa

About

prakash_tmb.jpgAgBioWorld founder Professor C.S. Prakash of Tuskegee University offers a weekly synopsis of topics of concern to the agricultural biotech community covering the latest news, innovation and commentary from AgBioWorld members. The AgBioWorld GMO Food For Thought blog will also offer guest blog posts and the latest industry news.

Contact:
prakash@gmofoodforthought.com

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