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SUMOylated in the E. coli system, also was shown to be SUMOylated in Arabidopsis. The identified SUMO substrates are involved in a wide range of plant processes, many of which were not previously known to involve SUMOylation. These proteins provide a basis for exploring the function of SUMOylation in the regulation of diverse processes in Arabidopsis.

URL: http://www.pnas.org/content/early/2010/09/15/1005452107.abstract Author Address: Max Planck Institute for Plant Breeding Research, Carl-von-Linne Weg 10, Cologne 50829, Germany XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX Author: Eltayeb Amin Elsadig, Yamamoto Shohei, Habora Mohamed, Elsadig Eltayeb, Matsukubo Yui, Aono Mitsuko, Tsujimoto Hisashi, Tanaka Kiyoshi, Year: 2010 Title: * Greater protection against oxidative damages imposed by various environmental stresses in transgenic potato with higher level of reduced glutathione.

Journal: Breeding Science 60, 2, 101-109.

Label: ReEn Oxydatif Keywords: glutathione, ascorbate, oxidative stress, potato Abstract: Potato (Solanum tuberosum L.) is the world‘s number one non-cereal food crop and ranks fourth among most important crops grown worldwide in terms of acreage, yield and value. In order to maintain greater protection against environmental stresses, we developed transgenic potato overexpressing Arabidopsis thaliana glutathione reductase gene (AtGR1). The transgenic potato maintained up to 6.5 folds higher GR activity, 5.8 folds glutathione (GSH) contents and up to 2.2 folds higher glutathione S-transferase activity compared to non transformed plants (NT). Interestingly, while the transgenic plants exhibited decreased dehydroascorbate reductase (DHAR) activity, the relative reduced ascorbate (AsA) contents were higher while the relative dehydroascorbate (DHA) were lower compared to NT which provide a support to the hypothesis that an active glutathione-independent pathway for DHA reduction might exists in vivo. The transgenic plants maintained an enhanced tolerance to methylviologen, and cadmium. When subjected to drought stress, the transgenic plants exhibited faster recovery with less visual injury compared to NT. These results suggest that manipulation of glutathione levels provides reliable strategy for the development of industrial transgenic potato plants with enhanced tolerance to multiple environmental stresses.

URL: http://www.jstage.jst.go.jp/article/jsbbs/60/2/60_101/_article Author Address: 1) Laboratory of Plant Biotechnology, Faculty of Agriculture, Tottori University Japan 2) Environmental Biology Division, National Institute for Environmental Studies 3) Arid Land Research Center, Tottori University 4) Laboratory of Plant Genetics and Breeding, Faculty of Agriculture, Tottori University XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX Author: Engels H, D Bourguet, L Cagá, B Manachini, I Schuphan, TJ Stodola, A Micoud, C Brazier, C Mottet, DA Andow, Year: 2010 Title: * Evaluating Resistance to Bt Toxin Cry1Ab by F2 Screen in European Populations of Ostrinia nubilalis (Lepidoptera: Crambidae).

Journal: Journal of Economic Entomology Oct 2010, Vol. 103, No. 5: 1803-1809.

Label: InRe Resistance Keywords: European corn borer, Bt maize, Mon810, resistance management, HDR strategy Abstract: The large-scale cultivation of transgenic crops producing Bacillus thuringiensis (Bt) toxins have already lead to the evolution of Bt resistance in some pest populations targeted by these crops. We used the F2 screening method for further estimating the frequency of resistance alleles of the European corn borer, Ostrinia nubilalis (Hübner) (Lepidoptera: Crambidae), to Bt maize, Zea mays L., producing the CrylAb toxin. In France, Germany, and Italy, 784, 455, and 80 lines of European corn borer were screened for resistance to Mon810 maize, respectively. In Slovakia, 26 lines were screened for resistance to the CrylAb toxin. The cost of F2 screen performed in the four countries varied from US$300 to $1,300 per line screened. The major difference in cost was mostly due to a severe loss of univoltine lines during the screen in Germany and Slovakia. In none of the screened lines did we detect alleles conferring resistance to Mon810 maize or to the CrylAb toxin. The