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Joe Ballenger on 29 March 2010
In Polydnaviruses: Nature’s GMOs, I wrote about how wasps use viruses to disable the immune defenses of their hosts. Braconid and ichneumonid wasps use a system that genetically modifies their hosts in order to shut their immune systems down.
So how does this all work?
A good system to use to describe how polydnavirus proteins work is the ankyrin/vankyrin pathways. It’s easy to visualize how they function and many other functions (Toll, Phenoloxidase silencing, etc) work in an indentical manner.
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David Tribe on 27 March 2010
As I’ve mentioned before, I’m an Australian. But us Ozzies get to meet a lot of Americans.
American author of Seeds of Deception and public speaker Jeffrey Smith’s of Fairfield Iowa, first came to the attention of Australians when he was rolled out by the anti-GM activists to try and prevent Australian farmers being given the freedom of choice on crop technology in late 2007. Fortunately this effort by the anti-technology lobby groups was unsuccessful.
At most meetings organized by these activists that I have attended since that time — and there have been quite a few — stacks of his more recent book Genetic Roulette book were available for purchase, and I snapped up one early on.
A brief perusal of the articles revealed the book was highly biased. Nowhere in the book was there a mention of any of the major good outcomes from GM technology—such as decreased risk of cancer from mycotoxins in moldy corm (see this link for Chassy and Tribe’s efforts on this important topic at Academics Review). On the topics that I was most familiar such as antibiotic resistance in bacteria, Genetic Roulette was deeply misleading and factually wrong.
I decided late 2007 to investigate its claims thoroughly, little knowing how huge the task would be because as it turned out every one of the 65 claims in it — better called myths– was distorted, misleading, plain wrong, or based on misrepresentation or misreading of the sources it quoted.
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Anastasia Bodnar on 20 March 2010
One of the best parts of the Maize Genetics Meeting is the opportunity to have discussions with scientists working in a variety of fields from academia, industry, and NGOs. Conversation this afternoon veered towards intellectual property (IP) and biotechnology for a bit. It’s a contentious subject for a lot of reasons, but some new ideas I’d never thought of before came up today. I don’t have a background in IP, so please feel free share your thoughts and ideas in the comments!
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Anastasia Bodnar on 19 March 2010
That headline catches your eye, doesn’t it?
We’ve seen such claims made in popular media such as the March 2010 Fury as EU approves GM potato: Critics claim plant could spread antibiotic-resistant diseases to humans in the Independent: “Opponents fear bacteria inside the guts of animals fed the GM potato – which can cause human diseases – may develop resistance to antibiotics.” Groups that actively work against deregulation of genetically engineered crops have been making such claims for years.
We’ve also seen these claims in peer-reviewed journals (although, far less frequently than in non-peer reviewed media and reports). For example, in the February 2009 issue of Critical Reviews in Food Science and Nutrition, the review Health Risks of Genetically Modified Foods: “An area of concern focuses on the possibility that antibiotic resistance genes used as markers in transgenic crops may be horizontally transferred to pathogenic gut bacteria, thereby reducing the effectiveness of antimicrobial therapy.”
Are antibiotic marker genes in genetically engineered crops really a risk to human health? Many people have raised this question and there seems to be a lot of confusion about the issue. It’s time to look into the risks and reasons more deeply.
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Organic consumers not very concerned about GE
(Hat tip to Elton Robinson at South East Farm Press)
The Consumers Union wanted to know what consumers felt about genetically engineered crops cross-pollinating with organic crops. So in early February, they conducted a poll. They called a thousand random people over the phone and asked them just two questions:
Sounds like a pretty simple exercise. However, I question the use of the term “contaminated.” This is a loaded term, and assumes one of the things that they want people to believe – that organic agriculture should not include genetic engineering. This introduces a bias into the poll. For instance, if you asked these two similar and benign questions, you would get two different results:
Of course, hybrids are allowed in organic agriculture, but I’ll bet my backyard garden harvest for this entire year that if you ask these two questions the word ‘contaminated’ will have a measurable effect and cause people to answer that they are more concerned than they would be otherwise.
Ok, that issue aside, it is good that the Consumers Union did a poll such as this, because there hasn’t been very much research investigating what people really think about genetic engineering and organic agriculture, and there’s been some talk about it in numerous channels. So how concerned are consumers about this “contamination?”
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