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Jak rostlinám chutná proteinová strava
 Zronková, Veronika
Nitrogen is one of the most abundant elements in living organisms. In contrast to other key elements, its input from inorganic sources is limited and thus the most of the nitrogen pool has to be recycled from nitrogenous compounds (including proteins) that have been used by other organisms. This thesis How do plants enjoy protein nutrition briefly reviews nitrogen assimilation mechanisms and discusses alternative nitrogen sources for plants. The experimental part provides evidence that an intact protein in the culture medium decreases root growth and that the cytokinin signalling participates in this response. Then, to provide tools for further elucidations of this mechanism, a method for plant secretome analyses was tested. Altogether, more than 300 proteins were detected in hydroponic-based cultures of Nicotiana tabacum and more than one-third of these were affected by the cytokinin treatment.
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