tailieunhanh - báo cáo khoa học: " Transcriptomic changes induced by acute ozone in resistant and sensitive Medicago truncatula accessions"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Transcriptomic changes induced by acute ozone in resistant and sensitive Medicago truncatula accessions | BMC Plant Biology BioMed Central Open Access Research article Transcriptomic changes induced by acute ozone in resistant and sensitive Medicago truncatula accessions Michael C Puckette1 YuhongTang2 and Ramamurthy Mahalingam 1 Address 1246 Noble Research Center Department of Biochemistry and Molecular Biology Oklahoma State University Stillwater OK USA and 2The Samuel Roberts Noble Foundation Inc. Plant Biology Division Ardmore OK USA Email Michael C Puckette - YuhongTang - ytang@ Ramamurthy Mahalingam - Corresponding author Published 23 April 2008 Received 21 February 2008 BMC Plant Biology 2008 8 46 doi 1471-2229-8-46 Accepted 23 April 2008 This article is available from http 1471-2229 8 46 2008 Puckette 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 Tropospheric ozone the most abundant air pollutant is detrimental to plant and animal health including humans. In sensitive plant species even a few hours of exposure to this potent oxidant 200-300 nL. L-1 leads to severe oxidative stress that manifests as visible cell death. In resistant plants usually no visible symptoms are observed on exposure to similar ozone concentrations. Naturally occurring variability to acute ozone in plants provides a valuable resource for examining molecular basis of the differences in responses to ozone. From our earlier study in Medicago truncatula we have identified cultivar Jemalong is ozone sensitive and PI 464815 JE154 is an ozone-resistant accession. Analyses of transcriptome changes in ozone-sensitive and resistant accession will provide important clues for understanding the molecular changes governing the plant