Science Current Events | Science News | Brightsurf.com
 

New study finds genetically engineered crops could play a role in sustainable agriculture

June 08, 2007
(Santa Barbara, California) - Genetically modified (GM) crops may contribute to increased productivity in sustainable agriculture, according to a groundbreaking study published in the June 8 issue of the journal Science. The study analyzes, for the first time, environmental impact data from field experiments all over the world, involving corn and cotton plants with a Bt gene inserted for its insecticidal properties. The research was conducted by scientists at the National Center for Ecological Analysis and Synthesis (NCEAS) at the University of California, Santa Barbara, The Nature Conservancy, and Santa Clara University. The study is accompanied by a searchable global database for agricultural and environmental scientists studying the effects of genetically engineered crops.

Biotechnology and genetic engineering are controversial because of concerns about risks to human health and biodiversity, but few analyses exist that reveal the actual effects genetically modified plants have on other non-modified species. In an analysis of 42 field experiments, scientists found that this particular modification, which causes the plant to produce an insecticide internally, can have an environmental benefit because large-scale insecticide spraying can be avoided. Organisms such as ladybird beetles, earthworms, and bees in locales with "Bt crops" fared better in field trials than those within locales treated with chemical insecticides.

"This is a groundbreaking study and the first of its kind to evaluate the current science surrounding genetically modified crops. The results are significant for how we think about technology and the future of sustainable agriculture," said Peter Kareiva, chief scientist of The Nature Conservancy.

According to lead author, Michele Marvier, of Santa Clara University, "We can now answer the question: Do Bt crops have effects on beneficial insects and worms" The answer is that it depends to a large degree upon the type of comparison one makes. When Bt crops are compared to crops sprayed with insecticides, the Bt crops come out looking quite good. But when Bt crops are compared to crops without insecticides, there are reductions of certain animal groups that warrant further investigation." What is clear is that the advantages or disadvantages of GM crops depend on the specific goals and vision for agroecosystems.

As NCEAS Director, Jim Reichman explains, "This important study by an interdisciplinary research team reveals how an in-depth analysis of large quantities of existing data from many individual experiments can provide a greater understanding of a complex issue. The project is enhanced by the creation of a public database, Nontarget Effects of Bt Crops, developed by NCEAS ecoinformatics expert, Jim Regetz, that will allow other scientists to conduct congruent analyses."

National Center for Ecological Analysis and Synthesis/UCSB


Related Genetically Modified Current Events and Genetically Modified News Articles


Herpes remains active even when no symptoms appear
Scientists investigating the herpes virus have been surprised to find an ongoing conflict in the cells of sufferers, even when the virus is apparently dormant.

Vanderbilt study examines bacteria's ability to fight obesity
A probiotic that prevents obesity could be on the horizon. Bacteria that produce a therapeutic compound in the gut inhibit weight gain, insulin resistance and other adverse effects of a high-fat diet in mice, Vanderbilt University investigators have discovered.

A protein couple controls flow of information into the brain's memory center
Neuroscientists in Bonn and Heidelberg have succeeded in providing new insights into how the brain works. Researchers at the DZNE and the German Cancer Research Center (DKFZ) analyzed tissue samples from mice to identify how two specific proteins, 'CKAMP44' and 'TARP Gamma-8', act upon the brain's memory center.

Study examines therapeutic bacteria's ability to prevent obesity
A probiotic that prevents obesity could be on the horizon. Bacteria that produce a therapeutic compound in the gut inhibit weight gain, insulin resistance and other adverse effects of a high-fat diet in mice, Vanderbilt University investigators have discovered.

When Faced With Some Sugars, Bacteria Can Be Picky Eaters
Researchers from North Carolina State University and the University of Minnesota have found for the first time that genetically identical strains of bacteria can respond very differently to the presence of sugars and other organic molecules in the environment, with some individual bacteria devouring the sugars and others ignoring it.

IU researchers identify events causing bone marrow inflammation leading to blood disorders
Like a line of falling dominos, a cascade of molecular events in the bone marrow produces high levels of inflammation that disrupt normal blood formation and lead to potentially deadly disorders including leukemia, an Indiana University-led research team has reported.

Research may yield new ways to treat antibiotic-resistant TB
Scientists in the United States and India have successfully modified the precursor to one of the drugs used to treat tuberculosis, an important first step toward new drugs that can transcend antibiotic resistance issues that experts consider a serious threat to global health.

Fatal cellular malfunction identified in Huntington's disease
Researchers believe they have learned how mutations in the gene that causes Huntington's disease kill brain cells, a finding that could open new opportunities for treating the fatal disorder.

Researchers Develop Genetic Control Mechanism for Major Livestock Pest
Researchers from North Carolina State University have developed a technique to control populations of the Australian sheep blowfly - a major livestock pest in Australia and New Zealand - by making female flies dependent upon a common antibiotic to survive.

Neurons Get Their Neighbors To Take Out Their Trash
Biologists have long considered cells to function like self-cleaning ovens, chewing up and recycling their own worn out parts as needed.
More Genetically Modified Current Events and Genetically Modified News Articles

Genetically Modified Foods: Debating Biotechnology (Contemporary Issues Series)

Genetically Modified Foods: Debating Biotechnology (Contemporary Issues Series)
by Michael Ruse (Editor), David Castle (Editor)


Finally, the real story about corporate America with its increased reliance on consultants. Since the 1990s, consulting solutions have become the de facto standard for solving business problems and providing cover for corporate decision makers. This is not the typical CEO whitewash, or business management primer. Steve Romaine offers a view never before shared with management or stockholders as he takes a hired gun's journey beginning at the outside looking in, and ending at the pinnacle of a corporation's power.

Based on his experience of working for IBM, his later role as a self-employed consultant, and finally his responsibilities as senior vice president for NationsBank, Romaine makes it clear that the issues leading to the collapse of Enron were not isolated events. Soldier of...

Genetically Modified Foods vs. Sustainability

Genetically Modified Foods vs. Sustainability
by Bruno McGrath (Author)


"We can't solve problems by using the same kind of thinking we used when we created them." - Albert Einstein This ebook points out the surrounding issues of genetically modified fruit and vegetables that consumers are unaware of. While several parties defend the use of technology to create food, it appears that little is being done to increase awareness about this matter to the end consumer. It also points out alternative food sustainability options such as organic farming and land management. This ebook will indicate that although some parties agree that genetically modified food items are cost effective and considered safe, its long-term results have not been adequately researched and the use of pesticides on these items are far higher than for other types farming or food products.

Genetically Modified Crops in Africa: Economic and Policy: Lessons from Countries South of the Sahara

Genetically Modified Crops in Africa: Economic and Policy: Lessons from Countries South of the Sahara
by Jose Falck-Zepeda (Editor), Guillaume Gruère (Editor), Idah Sithole-Niang (Editor)


A variable climate, political instability, and other constraints have limited agricultural development in African countries south of the Sahara. Genetically modified (GM) crops are one tool for enhancing agricultural productivity and food security despite such constraints. Genetically Modified Crops in Africa: Economic and Policy: Lessons from Countries South of the Sahara investigates how this tool might be effectively used by evaluating the benefits, costs, and risks for African countries of adopting GM crops. The authors gather together studies on GM crops’ economic effects and impact on trade, how consumers view such crops, and other issues. They find that GM crops have had, on average, a positive economic effect in the nations where they were used and identify future steps for...

Monsanto vs. the World: The Monsanto Protection Act, GMOs and Our Genetically Modified Future

Monsanto vs. the World: The Monsanto Protection Act, GMOs and Our Genetically Modified Future
by Jason Louv (Author)


Monsanto—one of the largest agriculture and biotech companies in the world—creates genetically engineered seeds and food, or GMOs. They've also brought us toxic chemicals like DDT, PCBs and even Agent Orange.  But what is Monsanto truly doing to our diet—and why do many consider their business practices deeply abusive? Are GMOs the solution to world hunger, or a shockingly dangerous threat to our health? And does Monsanto really, as some suggest, control much of the United States' agriculture and food departments?  Meticulously researched, Monsanto vs. the World puts to rest the myths and shows the shocking reality, delving into the science of GMOs, the political machinations of Monsanto in Washington and around the world, and showing what you can do to keep GMOs off your plate...

Seeds of Deception:  Exposing Industry and Government Lies About the Safety of the Genetically Engineered Foods You're Eating

Seeds of Deception: Exposing Industry and Government Lies About the Safety of the Genetically Engineered Foods You're Eating
by Jeffrey M. Smith (Author)


Without knowing it, Americans eat genetically modified (GM) food everyday. While the food and chemical industries claim that GMO food is safe, a considerable amount of evidence shows otherwise. In Seeds of Deception, Jeffrey Smith, a former executive with the leading independent laboratory testing for GM presence in foods, documents these serious health dangers and explains how corporate influence and government collusion have been used to cover them up. The stories Smith presents read like a mystery novel. Scientists are offered bribes or threatened; evidence is stolen; data withheld or distorted. Government scientists who complain are stripped of responsibilities or fired. The FDA even withheld information from congress after a GM food supplement killed nearly a hundred people and...

Genetically Modified Organisms in Agriculture: Economics and Politics

Genetically Modified Organisms in Agriculture: Economics and Politics
by Gerald C. Nelson (Author)


Genetically modified crops have become a topic of great interest among scientists, regulators, consumers, farmers, and politicians. Despite their potential benefits, public hostility toward these crops is causing dramatic changes to import/export policies, food safety regulations, and agricultural practices around the world. Genetically Modified Organisms in Agriculture provides a comprehensive overview of the subject and a balanced look at the costs and benefits of GMO products.

Part I reviews the scientific, economic, and political issues relating to the use of agricultural GMOs. Chapters cover specific applications, regulatory concerns, import/export patterns, international trade issues, and a discussion of future trends. Part II offers a unique look at all sides of the GMO...

Foreign Invaders: An Autoimmune Disease Journey through Monsanto's World of Genetically Modified Food

Foreign Invaders: An Autoimmune Disease Journey through Monsanto's World of Genetically Modified Food
by Difference Press


"A must-read for anyone dealing with health issues or wanting to learn more about eating cleaner, avoiding toxins, and improving diet!"

Whether or not you have a chronic illness or you are caught up in the autoimmune epidemic, genetically modified foods are a health risk. After being diagnosed with autoimmune disease and being disappointed by doctor after doctor, Dara Jones set off on a mission to recover her health with real food. In the footsteps of Robyn O’Brien, author of The Unhealthy Truth, Dara takes you on her journey through Monsanto’s world of GMO foods. After reading it, you’ll be empowered to take the reins of your own health and will never look at your grocery store shelves the same way.
In this personal account of her ongoing health recovery from...

Genetically Modified Prophecies, Whatever Happened to all the Sand and Stars God Promised to Abraham

Genetically Modified Prophecies, Whatever Happened to all the Sand and Stars God Promised to Abraham
by Victor Schlatter (Author)


Whatever happened to the promise?

...the one God made to Abraham that his descendants would be innumerable and what does that have to do with the rest of us today? As the world we once knew quickly unravels and the prophetic interpretations we once presumed credible crumble before our eyes, it s time to awaken to the possibility that the big-name visionaries of yesteryear may have zeroed in from the wrong angle. They told us as much as they saw, but after 1948, 1967, 9-11, and the current global disintegration, we see much more. Could it be that all those Abrahamic descendants are hiding in plain sight? Could it be that the Almighty was right after all? Genetically Modified Prophecies holds the key to understanding this prophetic predicament!

"Redemption is rooted in the...

Genetically Modified Organisms: Opening Pandora's Box with Genetically Modified Food

Genetically Modified Organisms: Opening Pandora's Box with Genetically Modified Food
by Choice PH


Genetically modified foods are foods produced from organisms that have had specific changes introduced into their DNA using the methods of genetic engineering. These techniques have allowed for the introduction of new crop traits as well as far greater control over a food's genetic structure than previously afforded by methods such as selective breeding and mutation breeding.

This eBook highlights the history of genetic engineering and the advantages and disadvantages of Genetically Modified Organisms (GMOs). The advantages would be the speed with which a desirable change can be brought about in both plants and animals. The disadvantages to these rapid changes and what some people fear would be "Genetic Drift". Since GMO crops are planted like non-GMO crops, these GMO crops...

Genetically Modified Organisms

Genetically Modified Organisms
by Eloquent Books


“The Mystery Unraveled�

Synopsis:

Products of gene modification have vast implications. Creating public awareness and disseminating information on the subject seeks to demystify some of the widely held falsehoods regarding genetically modified products.

This an informative, thorough and easy-to-understand guide book that aims to enlighten and debunk some of the commonly held misconceptions on products of gene modification and to give the reader a better understanding of the role genetic modification will play. The review sheds light on the safety, and application of these products in medicine, the food industry and other areas, especially those where genetic modification may represent a cheap, faster, credible and viable alternative in achieving...

© 2014 BrightSurf.com