Profound Chemopreventative Effects of a Hydrogen Sulfide-Releasing NSAID in the APC(Min/+) Mouse Model of Intestinal Tumorigenesis

Canadian Institutes of Health Research grant to JL

Responses of nitrous oxide emissions from crop rotation systems to four projected future climate change scenarios on a black Vertosol in subtropical Australia

© Springer Science+Business Media Dordrecht 2017. Black Vertosols of subtropical Australia emit large amounts of nitrous oxide (N2O) to the atmosphere under fertilizer-applied grain cropping compared to other Australian cropping soils. N2O emissions can be mitigated by either reducing fertilizer N inputs or altering crop rotation systems. In this study, the WNMM agroecosystem model was used to investigate the responses of N2O emissions from four different crop rotation systems including canola-wheat-barley (T1CaWB), chickpea-wheat-barley (T3CpWB), chickpea-wheat-chickpea (T4CpWCp), and chickpea-Sorghum (T5CpS) under projected future climate change scenarios on a black Vertosol at Tamworth, New South Wales, Australia. In simulations of the twenty-first century under four different scenarios for atmospheric greenhouse gas concentrations, the annual N2O emissions from the four cropping systems increased with greenhouse gas forcing of the climate. The annual N2O emissions from T4CpWCp (with no fertilizer N application) were the most sensitive to climate change, with 14.3-61.9% increase compared with historic simulations of 1952-2014. The simulated T5CpS treatment (with a long fallow) kept the gross margin-scaled N2O emissions below 1 g N per Australian dollar under all climate change scenarios. This suggests that the inclusion of a long fallow in a crop rotation system can slow down the pace of increasing gross margin-scaled N2O emissions in response to climate change. Our simulation results also imply that legume rotations as mitigation options on N2O emissions may not be resilient to the future changing climate even though they can greatly reduce N2O emissions under the current climate

Lotus Spp.: A foreigner that came to stay forever: Economic and environmental changes caused by its naturalization in the Salado River Basin (Argentina)

The Flooding Pampas in Buenos Aires Province is Argentina’s is one of cattle-raising areas. Climatic, topographic and edaphic conditions limit its potential in this area for growing crops such as soybean and wheat. The introduction of L. tenuis in the Flooding Pampas area triggered research based on its ability to tolerate the abiotic stresses that characterize the region and on its role in the improvement of the quality of forage resources. Along with research on abiotic stress tolerance, productive strategies have been developed to enhance the establishment of L. tenuis grassland and beef production. Research on Lotus spp. in the Flooding Pampas has therefore studied not only the biotechnological development and evaluation of new plant resources, but also the accompanying plant diversity, soil microorganisms and symbionts and their impact on environmental dynamics and sustainability. Based on this research, productive strategies have been designed, including continuous evaluation of the impact of cattle production on vulnerable ecosystems. In addition, basic and applied research on grasslands have been combined in order to respond to the environmental impact of the introduction and use of Lotus in these particular ecosystems.Fil: Nieva, Amira Susana del Valle. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús). Universidad Nacional de San Martín. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús); Argentina. Institut Max Planck fur Molekulare Physiologie; AlemaniaFil: Ruiz, Oscar Adolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús). Universidad Nacional de San Martín. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús); Argentin