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Arabidopsis transcriptional responses differentiate between O3 and herbicides
Citation:
Das, M., M. T. Mader, J. R. REICHMAN, L. S. WATRUD, T. G. PFLEEGER, A. R. Schaffner, AND D. M. OLSZYK. Arabidopsis transcriptional responses differentiate between O3 and herbicides. Presented at APGC Symposium: Plant Functioning in a Changing GLobal Environment, Creswick, Victoria, AUSTRALIA, December 07 - 11, 2008.
Impact/Purpose:
Using published data based on Affymetrix ATH1 Gene-Chips we characterized the transcriptional response of Arabidopsis thaliana Columbia to O3 and a few other major environmental stresses including oxidative stress.
Description:
Using published data based on Affymetrix ATH1 Gene-Chips we characterized the transcriptional response of Arabidopsis thaliana Columbia to O3 and a few other major environmental stresses including oxidative stress . A set of 101 markers could be extracted which provided a composite diagnostic signature that differentiated the transcriptional responses of A. thaliana to these stresses. Cluster analysis reveals greater similarity between the expression responses to four ALS-inhibiting herbicides and O3. In contrast, responses to glyphosate were more similar to UV-A and UV-B. While this research primarily was carried out to identify herbicide-specific expression patterns, the comparison to published data for O3 indicates that O3-specific markers may be evaluated and developed. This proof-of-concept study indicates that microarray approaches may useful to identify additional ozone-specific gene expression changes.