Negative impacts of Round Up Ready systems
source: http://www.gmwatch.org/latest-listing/1-news-items/12014-negative-impacts-of-rou...
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- JanforGore
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"EXTRACT: This system is altering the whole soil biology.
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Professor Robert Kramer discusses the impacts of the Roundup Ready system
via The Organic and Non-GMO Report
[extracted from an article here]
http://www.salem-news.com/articles/march052010/roundup-judge.php
*Please give me an overview of your research
RK: We started in 1997 wanting to see if this new system, Roundup Ready, would change the production of nematodes in soybean. We started looking at organisms in soybean roots and saw microorganisms colonizing the roots. We suspected that glyphosate was having an impact. There was a root fungi problem that seemed to be encouraging sudden death syndrome (SDS). We saw the increase of these fungi in the Roundup Ready (genetically modified) system, both soybeans and corn.
*What types of things are you seeing in the Roundup Ready system?
RK: This system is altering the whole soil biology. We are seeing differences in bacteria in plant roots and changes in nutrient availability. Glyphosate is very systemic in the plant and is being released through the roots into the soil. Many studies show that glyphosate can have toxic effects on microorganisms and can stimulate them to germinate spores and colonize root systems. Other researchers are showing that glyphosate can immobilize manganese, an essential plant micronutrient.
*What are glyphosate's impacts on beneficial soil bacteria?
RK: The most obvious impact is on rhizobia, a bacterium that fixes nitrogen. It has been shown that glyphosate can be toxic to rhizobia. (Nitrogen fixing bacteria are important to soils because nitrogen is the most commonly deficient nutrient in many soils.)
*What about research showing increased incidence of Fusarium in Roundup Ready GM crops?
RK: We've taken field surveys and seen an increase in Fusarium with the use of glyphosate. Some Roundup Ready varieties even without using glyphosate tend to be more susceptible to being impacted by Fusarium. It could be an unintended consequence of genetic manipulation that could make it more susceptible.
*Your paper also mentioned the potential of glyphosate to contaminate groundwater.
RK: Yes, under certain circumstances. The big assumption for claims that glyphosate is benign is that it isn’t immediately absorbed by the soil. But research is showing that isn’t necessarily true; that it is still available in the soil.
If soil is full of phosphorous, glyphosate could leach into ground water. For example, farmers may use manure from confined animal feeding operations as a fertilizer. The soil will then contain high amounts of phosphorus, which overwhelms the soil. Any glyphosate that hits the soil will be a potential contaminant. It can stay in the soil or it might run off into streams or waterways.
*What about glyphosate resistant weeds?
RK: We have eight different species of glyphosate resistant weeds in Missouri. Some species of Johnson Grass are found in fields where Roundup is used year after year. It is a very aggressive weed.
To solve the problem of weed resistance, genetic engineers are developing soybeans that tolerate Roundup and Dicamba, another herbicide. They are incorporating another gene resistant to another herbicide. When resistance happens again, will they then develop a plant resistant to five or six herbicides? It's an illogical circle."
cont. at link
____
They destroy all that is good about agriculture.
BOYCOTT GMOS
http://www.responsibletechnology.org
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Professor Robert Kramer discusses the impacts of the Roundup Ready system
via The Organic and Non-GMO Report
[extracted from an article here]
http://www.salem-news.com/articles/march052010/roundup-judge.php
*Please give me an overview of your research
RK: We started in 1997 wanting to see if this new system, Roundup Ready, would change the production of nematodes in soybean. We started looking at organisms in soybean roots and saw microorganisms colonizing the roots. We suspected that glyphosate was having an impact. There was a root fungi problem that seemed to be encouraging sudden death syndrome (SDS). We saw the increase of these fungi in the Roundup Ready (genetically modified) system, both soybeans and corn.
*What types of things are you seeing in the Roundup Ready system?
RK: This system is altering the whole soil biology. We are seeing differences in bacteria in plant roots and changes in nutrient availability. Glyphosate is very systemic in the plant and is being released through the roots into the soil. Many studies show that glyphosate can have toxic effects on microorganisms and can stimulate them to germinate spores and colonize root systems. Other researchers are showing that glyphosate can immobilize manganese, an essential plant micronutrient.
*What are glyphosate's impacts on beneficial soil bacteria?
RK: The most obvious impact is on rhizobia, a bacterium that fixes nitrogen. It has been shown that glyphosate can be toxic to rhizobia. (Nitrogen fixing bacteria are important to soils because nitrogen is the most commonly deficient nutrient in many soils.)
*What about research showing increased incidence of Fusarium in Roundup Ready GM crops?
RK: We've taken field surveys and seen an increase in Fusarium with the use of glyphosate. Some Roundup Ready varieties even without using glyphosate tend to be more susceptible to being impacted by Fusarium. It could be an unintended consequence of genetic manipulation that could make it more susceptible.
*Your paper also mentioned the potential of glyphosate to contaminate groundwater.
RK: Yes, under certain circumstances. The big assumption for claims that glyphosate is benign is that it isn’t immediately absorbed by the soil. But research is showing that isn’t necessarily true; that it is still available in the soil.
If soil is full of phosphorous, glyphosate could leach into ground water. For example, farmers may use manure from confined animal feeding operations as a fertilizer. The soil will then contain high amounts of phosphorus, which overwhelms the soil. Any glyphosate that hits the soil will be a potential contaminant. It can stay in the soil or it might run off into streams or waterways.
*What about glyphosate resistant weeds?
RK: We have eight different species of glyphosate resistant weeds in Missouri. Some species of Johnson Grass are found in fields where Roundup is used year after year. It is a very aggressive weed.
To solve the problem of weed resistance, genetic engineers are developing soybeans that tolerate Roundup and Dicamba, another herbicide. They are incorporating another gene resistant to another herbicide. When resistance happens again, will they then develop a plant resistant to five or six herbicides? It's an illogical circle."
cont. at link
____
They destroy all that is good about agriculture.
BOYCOTT GMOS
http://www.responsibletechnology.org
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