GMOsux's picture
How do you prevent pesticide from being consumed by grazing cattle, goats, etc ?? Monsanto and friends just shift the toxins from the contaminated soil directly into the chain of the ecosystem. So insects or cattle that feed off of the toxic rich plant will also get contaminated and the heavy metals will migrate within months not years, all the way up the food chain until they reach the top predator which unfortunately happens to be us humans.

A:Expert Answer

Biotechnology has nothing to do with heavy metals, so I’m going to focus on the question it appears you’re asking about Cry proteins (i.e., Bt proteins), which have been expressed in genetically modified (GM) crops to protect them from insect damage. You offer an interesting perspective, but remember that the soil is just soil (as it has always been) and it contains bacteria (just as it always has) and some of that bacteria is Bt, or Bacillus thuringiensis (just as it always was). These bacteria are ubiquitously distributed in the environment, and therefore, their Cry proteins also are ubiquitous. Thorough testing has shown that modifying a crop plant to express Bt proteins is safe.  And in fact, these insect-resistant crops mean decreased use of chemicals that are used to protect against insect damage.

 

With regard to a Bt protein moving “up the food chain”―it will not happen.  The human digestive system treats Bt proteins the same way it treats dietary proteins.  In other words, it easily breaks them down into individual amino acids and small peptides that are absorbed for nutritive purposes.  Bt proteins have long been used in agriculture without any effects on mammals, birds or other non- target (non-pest) species.  They have a very narrow spectrum of activity because they have to bind to specific receptors on the lining of the gut of insects, and those receptors are not present in these other organisms. 

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Comments

jtrav21's picture

@GMOsux - what heavy metals are you referring to?

What toxic rich plants are you referring to?

Are you referring to BT transgenic crops? The BT protein has no heavy metals associated with it.

Can you provide any details or facts to substantiate your question?

GMOsux's picture

The modern age of industrial agriculture and manufacturing has dumped heavy metals, carninogens, plastics, and pesticides into the environment at alarming rates. These toxins are showing up in most human tissue cells today. One distinct chemical may be trapping these toxins in human cells, limiting the human body’s ability to detoxify its own cells. In a new peer reviewed study, this sinister chemical, glyphosate, has been proven to inhibit the human cell’s ability to detoxify altogether. Glyphosate, found in Monsanto’s Roundup, is being deemed by publishers of the new study “one of the most dangerous chemicals” being unleashed into the environment today.

jtrav21's picture

@GMOsux - what studies are you referring to? Your claims are empty without some substantiation. How does this relate to GMO crops? It appears you are in some general way trying to bash industrial agriculture...but you are not making much of a point with your comments.

GMOsux's picture

That's the conclusion of two scientists who reviewed 286 studies of the biological effects of glyphosate and published their findings in the peer-reviewed journal Entropy in April 2013.

GMOsux's picture

In their search of the literature, environmental scientist Anthony Samsel and Stephanie Seneff, senior research scientist at Massachusetts Institute of Technology's Computer Science and Artificial Intelligence Laboratory, found that glyphosate suppresses and inhibits cytochrome P45, a class of human enzyme known in scientific shorthand as CYP.

Inhibiting enzymes is exactly how glyphosate works as an herbicide. Enzymes are catalysts for all sorts of functions in plants, and when they are suppressed, the plants die for lack of the ability to function properly. Something of the same effect may be at work in humans who ingest glyphosate on their food.

"Glyphosate's inhibition of CYP enzymes is an overlooked component of its toxicity to mammals," Samsel and Seneff write. "CYP enzymes play crucial roles in biology, one of which is to detoxify any foreign substances not normally found in living creatures, such as pesticides, industrial chemicals, pollutants, and drugs. Thus, glyphosate enhances the damaging effects of other food-borne chemical residues and environmental toxins. The negative impact on the body is insidious, and manifests slowly over time as inflammation damages cellular systems within the body."

The authors describe how glyphosate harms three crucial bodily functions. First, it interferes with CYP enzymes. Second, it disrupts the ability of intestinal microbes to construct important amino acids that build and repair the body's cellular tissues. Third, it impairs the movement of sulfate compounds in the blood. These compounds are especially important in the growth of infants, young children, and developing fetuses. Glyphosate's enzyme inhibition acts synergistically with the other two damaging effects; that is, it produces a more serious health effect than the sum of the individual effects.

GMOsux's picture

All GMO crop sprayed with glyphosate are toxic rich plants. If you spray the soil, the plants uptake the toxic pesticides through roots and absorb them through ariel parts.

ILfarmer's picture

If you spray a pasture with glyphosate you will kill all the grass, thus solving your problem of cattle and goats grazing on fields that are "toxic"

GMOsux's picture

animals will graze the GMO crop, hence the whole reason for this discussion.

Cornlover's picture

Roundup breaks down pretty fast.It don't build up in the soil or body.By time you or a cow eats it,it is so low to even talk about.

Cornlover's picture

Roundup breaks down pretty fast.It don't build up in the soil or body.By time you or a cow eats it,it is so low to even talk about.

INFarmer's picture

Just what I want to do, turn my cattle loose to destroy my gmo corn!

GMOsux's picture

No Roundup gets absorbed fast since it is sprayed so heavily directly on the crops and root zone. Once it is absorbed, it stays within the crop, especially since it is sprayed numerous times during the plants life prior to harvest. If you think otherwise, you better take your crops to have them tested so you can learn a thing about GMO.

Everyone knows cows are feed these GMO grains due to them being dirt cheap and over 80% of the corn grown in america.

Konrad Roeder's picture

@Cornlover @INFarmer The facts show otherwise.

Glyphosate has been called “extremely persistent” by the U.S. Environmental Protection Agency, and half lives of over 100 days have been measured in field tests in Iowa and New York. Glyphosate has been found in streams following agricultural, urban, and forestry applications.

http://www.scribd.com/doc/36572418/Glyphosate-Main-Text

Konrad Roeder's picture

Glyphosate - So safe that you can drink it?

@Cornlover @INFarmer ... It would be sad to watch you two drink a cup or two. You would surely die. It's that toxic.

Japanese researchers analysing suicides have found that drinking ¾ of a cup (200 millilitres) of commercial glyphosate products is fatal.

Survivors (those who consumed less than ¾ of a cup) suffered a range of severe health problems. These problems included intestinal pain, vomiting, erosion of the gastrointestinal tract, excess fluid in the lungs, pneumonia, lung dysfunction, clouding of consciousness, destruction of red blood cells, abnormal electrocardiograms, low blood pressure, kidney damage and damage to the larynx. It is important to note that damage to the kidneys and the lungs is usually permanent. These body tissues do not repair themselves, instead forming scar tissue that does not function to help filter toxins from the blood or breathe oxygen.

In California, where there is a mandatory system of reporting pesticide poisoning, Glyphosate is the third most common cause of pesticide illness in farm workers. It is the most common form of reported pesticide poisoning in landscape gardeners.

EatRealFood's picture

Dr. Delaney, admittedly, answered a different question than the one that was asked. It seems the question was about pesticides in general, not just the bt pesticides built into genetically