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Congratulations!

Some of the 2008 Master of Biotechnology students celebrating after the mid-year graduation ceremony. This was the largest graduating class to date (9 graduates), but more to come with 15 students currently enrolled in the first year of the program and 6 second year students beginning their Honours year.

SAA Research

The Plant Cell, December 2007

Systemic Acquired acclimation to High Light

Nancy A. Eckardt
News and Reviews Editor
neckardt@aspb.org

from http://www.plantcell.org/cgi/content/full/19/12/3838-a

IN BRIEF. Different parts of the canopy are exposed to potentially damaging full sunlight as the sun tracks from east to west. Rossel et al. (pages 4091–4110) investigate a novel photoprotective signaling system in Arabidopsis by which exposed leaves could signal to and thereby preacclimate shaded leaves, which is known as systemic acquired acclimation (SAA). They show that a systemic signal is rapidly transmitted from high-lighted exposed to distal shaded leaves, resulting in very similar changes in global gene expression. This work shows that SAA involves a novel signal or combination of signals that can preacclimate photosynthetic tissues to high light.

Research Groups
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Susan Howitt Laboratory
We are interested in how transporters function with the aim of understanding their molecular mechanisms. We are using heterologous expression systems to characterize transporters and mutant variants that have been generated by site-directed mutagenesis or random methods. This allows us to test hypotheses about which regions of the transporter are important for function. Our current focus is on sulphate transporters and ammonium transporters from plants, both of which play important roles in nutrient uptake. More..

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