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


New study illuminates key aspects of how we fall asleep and wake up
Falling asleep and waking up are key transitions in everyone's day. Millions of people have trouble with these transitions - they find it hard to fall asleep or stay asleep at night, and hard to stay awake during the day.

Mammalian fertilization, caught on tape
The development of every animal in the history of the world began with a simple step: the fusion of a spermatozoon (the male gamete) with an oocyte, or egg (the female gamete).

Genetically modified E. coli pump out morphine precursor
A common gut microbe could soon be offering us pain relief. Japanese bioengineers have tweaked Escherichia coli genes so that they pump out thebaine, a morphine precursor that can be modified to make painkillers.

Body's immune system may play larger role in Alzheimer's disease than thought
Immune cells that normally help us fight off bacterial and viral infections may play a far greater role in Alzheimer's disease than originally thought, according to University of California, Irvine neurobiologists with the Sue & Bill Gross Stem Cell Research Center and the Institute for Memory Impairments and Neurological Disorders.

New device may speed up DNA insertion into bacteria
Genetically engineering any organism requires first getting its cells to take in foreign DNA. To do this, scientists often perform a process called electroporation, in which they expose cells to an electric field.

E. coli survives predatory bacteria by playing hide and seek
The majority of disease-causing bacteria in the body are rendered harmless by the protective effects of the immune system.

New study finds promising results for MERS treatment
In a new study, University of Maryland School of Medicine researchers have had promising results with a new treatment for Middle East Respiratory Syndrome (MERS).

Progress in fighting cancer and infections with T cell therapy
The quest to bring immunotherapy into widespread clinical use against cancer and infectious diseases has made great strides in recent years.

Disruptions to embryonic reprogramming alter adult mouse behavior
Right after fertilization, embryos at the earliest stages of development tell their genes: "Forget what it was like in the sperm or egg where you came from."

UAB researchers find protein that improves mobility after spinal cord injuries
Spinal cord injuries cause severe functional disabilities in those who sustain them, including paraplegia or tetraplegia, depending on the scale of the injury.
More Genetically Modified Current Events and Genetically Modified News Articles

Genetically Modified Foods: Basics, Applications, and Controversy

Genetically Modified Foods: Basics, Applications, and Controversy
by Salah E. O. Mahgoub (Author)


An increasingly hot-button issue, genetically modified (GM) food is considered by some as the best way to feed the world’s growing population, and by others as an experiment gone wrong on the unsuspecting public. Genetically Modified Foods: Basics, Applications, and Controversy details the basics of biotechnology and its applications in the laboratory and the field. It provides a balanced presentation of the pros and cons of GM foods, examining the arguments of proponents and opponents, and covering regulations governing GM food labeling. The book includes definitions of biotechnology considered from different perspectives; examines different techniques, including their advantages and shortcomings; and highlights the unintended consequences of traditional and modern GM techniques. The...

Genetically Modified Foods : Banned By Other Countries but is a main staple of our diet! (Genetically modified organisms, Gmo, Food that ruin your life, ... Foods, organic food, Food addiction Book 1)

Genetically Modified Foods : Banned By Other Countries but is a main staple of our diet! (Genetically modified organisms, Gmo, Food that ruin your life, ... Foods, organic food, Food addiction Book 1)
by Mano Hano


Quick Knowledge…...intended to furnish the reader with short, simple and to the point knowledge of GMOs. In this digital book reader will locate the accompanying knowledge:-
- List of 10 Banned foods that everybody in America ought to abstain from eating.
- Why many foods and food products we expend in United States are banned in different nations.
- What is the option?



GMO Myths and Truths: A Citizen's Guide to the Evidence on the Safety and Efficacy of Genetically Modified Crops and Foods, 3rd Edition

GMO Myths and Truths: A Citizen's Guide to the Evidence on the Safety and Efficacy of Genetically Modified Crops and Foods, 3rd Edition
by Claire Robinson Mphil (Author), Michael Antoniou PhD (Author), John Fagan PhD (Author)


It is often claimed that the case against genetically modified (GM) crops and foods is based on emotion, not science, and that to oppose GM crop and food technology is to be anti-science. It is also claimed that GM crops offer higher yields and better nutrition, that they are safe for health and the environment, that they reduce agrochemical use, and that they are needed to feed the world’s growing population. This book, co-authored by two genetic engineers and a writer/researcher, exposes these claims as false, using scientific and other documented evidence. GMO Myths and Truths summarizes the facts on the safety and efficacy of genetically modified (GM) crops and foods in terms that are accessible to the non-scientist but still relevant to scientists, policymakers and educators. The...

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 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...

Pandora's Picnic Basket: The Potential and Hazards of Genetically Modified Foods

Pandora's Picnic Basket: The Potential and Hazards of Genetically Modified Foods
by Alan McHughen (Author)


Did you know that there are fish genes in some tomatoes? That Brazil nut genes in soybeans can result in potentially lethal allergic reactions? That rapeseed plants bred to be resistant to herbicides could become uncontrollable superweeds? Genetically modified foods do pose real risks, and in recent years they have become the focus of a pitched battle between scientists, entrepreneurs, consumer advocates, and environmentalists. Yet despite the great heat generated by the debate, there is very little real information on the subject, either about the technologies in use or about the regulatory processes established to protect us from potentially dangerous products.
Pandora's Picnic Basket explains, in clear and direct language, the technologies underlying genetically modified...

Genetically Modified Crops

Genetically Modified Crops
by Nigel G Halford (Author)


Plant molecular biology came to the fore in the early 1980s and there has been tremendous growth in the subject since then. The study of plant genes and genomes and the development of techniques for the incorporation of novel or modified genes into plants eventually led to the commercialization of genetically modified (GM) crops in the mid-1990s. This was seen as the start of a biotechnological revolution in plant breeding. However, plant biotechnology has become one of the hottest debates of the age and, in Europe at least, one of the greatest challenges that plant scientists have ever faced.This book describes the history and development of the science and techniques that underpin plant biotechnology, GM crops that are grown commercially around the world and the new varieties that are...

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...

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 Organisms: The Mystery Unraveled

Genetically Modified Organisms: The Mystery Unraveled
by PhD Miriam Jumba (Author)


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 is 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 ...

© 2016 BrightSurf.com