MON810
articles & blog entries
- 21. July 2008
A new study from the GenOk Centre for Biosafety in Tromso show a reduced fitness of Daphnia magna fed on Bt maize MON810. Daphnias fed on MON810 had a higher mortality rate, less females reached sexual maturation, and the overall egg production was lower compared to D. magna fed isogenic maize. Since this reduced fitness after feeding on Bt maize coincided with an earlier onset of reproduction, the scientists concluded a toxic effect rather than a lower nutritional value of the GM-maize.
After adverse effects of Bt maize on caddis flies last year, this is no the second study showing possible adverse effects of Bt maize on aquatic organisms. Meanwhile the environmental risk assessment of GM crops in the EU does not include aquatic ecosystems.
Bøhn T, Primicerio R, Hessen DO & Traavik T (2008): Reduced Fitness of Daphnia magna Fed a Bt-Transgenic Maize Variety. Archives of Environmental Contamination and Toxicology, DOI 10.1007/s00244-008-9150-5. - 6. June 2008
A. Lorch & Ch. Then, 2007. Greenpeace Report, June 2007.
The report presented here shows the many ways Bt maize impacts the environment. Even after more then a decade of commercial growing of Bt maize crops, the risk assessment studies are still few and most of them tend to raise more open questions than solving concerns. - 17. May 2008
An in-depth research into who is who in the German competent authorities for the assessment and approval of GM crops, should that many of those involved play a number of roles in different networks. Some of the scientists in the approval authorities and the national research institutes giving advices to the authorities are also member of lobby organisations and/or are involved with the biotech industry. - 31. March 2008
Who thought that it would be the easiest to ban GM maize, where it's not grown anyway, now luckily can admit that they were wrong: Romenia - the biggest maize producer in the EU - just decided to ban the cultivation of MON810. Reasons are not primarily the financial an ecological costs of Monsanto's crop, but the understanding that more money could be earned by growing organic maize. - 23. May 2007
German authorities stopped the sales of Monsanto's GM maize MON810 till Monsanto submits a new monitoring plan for environmental effects because of new scientific knowledge that MON810 has bigger adverse effects on the environment then expected.
However, because the decision was only taken shortly after the maize sowings, the cultivation of MON810 maize will probably not affected this year. Nevertheless, the decision is important for the further assessment of MON810 in the EU. (Notification in German and English) - 26. September 2005
A. Lorch, 2005. Greenpeace report.
Some more details on recent findings on the EFSA opinions about the MON863 hybrids MON863xMON810, MON863xNK603 and MON863xMON810xNK603 (EFSA 2005):
glossary
MON810 is a Bt maize event owned by Monsanto that produces a modified form of the Bt toxin Cry1Ab. It was developed by using two transgenic constructs for the Bt toxin, a herbicide tolerance, antibiotic resistance markers and start and stop codons. Using a shot gun method, the DNA sequences were only introduced partially so that MON810 produces only the Bt toxin, while the DNA sequences of the inserts are still not completely identified.
In the last years, a growing number of studies have shown adverse effects of the Bt toxin on non-target organisms, including effects that were only discovered after the the initial cultivation approvals were given. However, research about MON810 is hindered because research and publications about MON810 effects need the approval of Monsanto as the patent holder.
MON810 has been cultivated in the US since 1995. It got cultivation approval in the EU under 90/220 in 1998, but was only introduced to the seed catalogue in 2004. MON810 cultivation is banned in the EU memberstates Austria, Poland, France and Greece. In April 2008 Romania also announced that it would ban its cultivation. In Germany, the sale of MON810 was stopped in 2007 because the authorities did not consider the monitoring plan as sufficient, and even though a new monitoring plan has now be accepted, it has been widely criticized.





