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Experimental systems to monitor the impact of transgenic corn on keystone soil microorganisms


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Turrini, Dr. Alessandra; Sbrana, Dr. Cristiana and Giovannetti, Prof. Manuela (2008) Experimental systems to monitor the impact of transgenic corn on keystone soil microorganisms. Poster at: Cultivating the Future Based on Science: 2nd Conference of the International Society of Organic Agriculture Research ISOFAR, Modena, Italy, June 18-20, 2008.

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Risks and benefits of transgenic crop plants should be evaluated not only by assessing pollen flow, but also by considering soil persistence of transgenic products, such as Bt toxins, which can accumulate in the soil and remain active for a long time. Moreover, transgenic plants are often ploughed under as crop residues, representing a potential hazard for non-target arbuscular mycorrhizal (AM) fungi, a group of beneficial plant symbionts fundamental for soil fertility. In this study we monitored the effects of transgenic corn plants (Bt 11 and Bt 176) and their residues on AM fungal growth and root colonization ability. Both transgenic plants decreased mycorrhizal colonization and Bt 11 plant residues negatively affected mycorrhizal establishment by indigenous endophytes, four months after their incorporation into soil.

EPrint Type:Conference paper, poster, etc.
Type of presentation:Poster
Keywords:GMO, environmental impact, arbuscular mycorrhizal fungi, co-existence, non-target organisms
Subjects: Environmental aspects > Biodiversity and ecosystem services
Research affiliation: International Conferences > 2008: IFOAM OWC: Research Track / ISOFAR > 9.3 Genetic engineering
Deposited By: Turrini, Dr. Alessandra
ID Code:11772
Deposited On:06 Oct 2008
Last Modified:12 Apr 2010 07:35
Document Language:English
Refereed:Peer-reviewed and accepted
Additional Publishing Information:This paper is published in the conference proceedings:
Neuhoff, Daniel; Halberg, Niels; Alfldi, Thomas; Lockeretz, William; Thommen, Andreas; Rasmussen, Ilse A.; Hermansen, John; Vaarst, Mette; Lck, Lorna; Carporali, Fabio; Jensen, Henning Hgh; Migliorini, Paola and Willer, Helga, Eds. (2008) .Cultivating the Future Based on Science. Proceedings of the Second Scientific Conference of the International Society of Organic Agriculture Research (ISOFAR), held at the 16th IFOAM Organic World Congress in Cooperation with the International Federation of Organic Agriculture Movements (IFOAM) and the Consorzio ModenaBio, 18 . 20 June 2008 in Modena, Italy.. International Society of Organic Agriculture Research (ISOFAR), c/o IOL, DE-Bonn, Research Institute of Organic Agriculture FiBL, CH-Frick. https://orgprints.org/13672 and https://orgprints.org/13674

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