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National Repository of Grey Literature 1 records found  Search took 0.00 seconds. 
The Role of Lipids and Lipid Metabolizing Enzymes in Plant Autophagy
 Krupař, Pavel ; Martinec, Jan (advisor) ; Hála, Michal (referee)
Plant autophagy is a crucial evolutionary conserved process for recycling cytoplasmic material under stress conditions or during development. The autophagic pathway is negatively regulated by TOR kinase, a versatile molecule modulating a wide range of cellular processes. In mammals, TOR kinase may be activated by phosphatidic acid, a vital signalling lipid. This thesis aims to prove the possible involvement of phospholipids in plant autophagy. I analysed the rate of primary root inhibition in knock-out mutants coding phospholipases in A. thaliana with induced autophagy, measured activity of lipid metabolising enzymes in wild type and atg10 mutant and observed autophagosome formation in selected mutants. Autophagosomes were labelled by fluorescent protein in vivo and by indirect immunolabelling in fixed samples. Using advanced stereological approach, I optimized a method for obtaining an unbiased estimate of autophagosome number in plant root cells.
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