Insights on nutrient use of an extremophyte: Desperate times breed desperate measures?
“Omics” platforms now provide valuable approaches for comparing metabolite profiles and gene expression patterns from stress-sensitive and stress-adapted genomes, studies that can lead to greater mechanistic understanding of biological processes underlying stress tolerance. Our research focuses upon the extremophyte, Eutrema salsugineum (aka Thellungiella salsuginea), a close relative of Arabidopsis thaliana yet a plant species far more tolerant of extremes in temperature, water deficits, soil salinity, and nutrient deficiencies. Transcriptomes and metabolite profiles prepared from E. salsugineum plants subjected to stress treatments in growth cabinets have been compared to profiles from plants collected in the challenging conditions of its native semi-arid, sub-Arctic habitat in the Yukon, Canada. These comparative genomics approaches reveal a rich diversity in novel coping strategies, some well exemplified in processes of osmotic adjustment and nutrient deficiencies.
11:30-12:30 BioSci Rm. 3110