Transcript profiling of serine- and cysteine protease inhibitors inTriticum aestivumvarieties with different drought tolerance (original) (raw)

2016, Cereal Research Communications

Semi-Quantitative RT-PCR Analysis of Selected Protease Inhibitors in Drought-Stressed Triticum Aestivum

2014

Summary: Proteases and their specific inhibitors are ubiquitously distributed and play a key regulatory role in many biological processes. Gene expression and activity of certain proteases has been shown to increase in Triticum aestivum L. leaves under drought, with a major contribution of cysteine proteases, especially in sensitive wheat varieties. However, little is known about the stress response of protease inhibitors (PIs) and their role in the regulation of intracellular proteolysis. In this study the changes in transcript abundance of some protease inhibitors (belonging to cystatin and serpin classes) were evaluated by semi-quantitative RT-PCR in leaves and roots of winter wheat seedlings from two varieties with differing tolerance. The expression of two cysteine proteases in the same samples was also assessed. The expression of the studied genes was compared in the tolerant variety “Katya” and the more susceptible to water deprivation variety “Sadovo”, applying severe but re...

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