tailieunhanh - báo cáo khoa học: " Differential patterns of reactive oxygen species and antioxidative mechanisms during atrazine injury and sucrose-induced tolerance in Arabidopsis thaliana plantlets"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Differential patterns of reactive oxygen species and antioxidative mechanisms during atrazine injury and sucrose-induced tolerance in Arabidopsis thaliana plantlets | BMC Plant Biology BioMed Central Research article Differential patterns of reactive oxygen species and antioxidative mechanisms during atrazine injury and sucrose-induced tolerance in Arabidopsis thaliana plantlets Fanny Ramel1 Cécile Sulmon1 Matthieu Bogard1 2 Ivan Couée1 and Gwenola Gouesbet 1 Address 1Centre National de la Recherche Scientifique Université de Rennes I UMR 6553 ECOBIO Campus de Beaulieu bâtiment 14A F-35042 Rennes Cedex France and 2INRA UMR 1095 Génétique Diversité et Ecophysiologie des Céréales 234-avenue du Brezet F-63100 Clermont-Ferrand France Email Fanny Ramel - .fr Cécile Sulmon - .fr Matthieu Bogard - mbogard@ Ivan Couée - Gwenola Gouesbet - Corresponding author Open Access Published 13 March 2009 Received 4 December 2008 BMC Plant Biology 2009 9 28 doi l47l-2229-9-28 Accepted 13 March 2009 This article is available from http l47l-2229 9 28 2009 Ramel et al licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License http licenses by which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Abstract_ Background Besides being essential for plant structure and metabolism soluble carbohydrates play important roles in stress responses. Sucrose has been shown to confer to Arabidopsis seedlings a high level of tolerance to the herbicide atrazine which causes reactive oxygen species ROS production and oxidative stress. The effects of atrazine and of exogenous sucrose on ROS patterns and ROS-scavenging systems were studied. Simultaneous analysis of ROS contents expression of ROS-related genes and activities of ROS-scavenging .