Barbara Maria Zagdańska

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Cysteine proteinases also referred to as thiol proteases play an essential role in plant growth and development but also in senescence and programmed cell death, in accumulation of storage proteins such as in seeds, but also in storage protein mobilization. Thus, they participate in both anabolic and catabolic processes. In addition, they are involved in(More)
Wheat (Triticum aestivum L.) seedlings contain four alanine aminotransferase (AlaAT) homologues. Two of them encode AlaAT enzymes, whereas two homologues act as glumate:glyoxylate aminotransferase (GGAT). To address the function of the distinct AlaAT homologues a comparative examination of the changes in transcript level together with the enzyme activity(More)
The present work demonstrates that the transition of wheat (Triticum aestivum L.) seedlings from dehydration tolerance to intolerance on the fifth day following imbibition is associated with a disturbance in cellular redox homeostasis. During germination the ratio of reduced (AsA) to oxidized ascorbate (DHA) was lower in the tolerant 4-day-old seedlings(More)
In maize, leaf proteome responses evoked by soil drought applied separately differ from those evoked by mite feeding or both types of stresses occurring simultaneously. This study focuses on the involvement of proteomic changes in defence responses of a conventional maize cultivar (Bosman) to the two-spotted spider mite infestation, soil drought and both(More)
Transgenic lepidopteran insect-resistant maize expressing the cry1Ab gene (Bt) and its non-transgenic counterpart at the 12-leaf-stage (V12) were infested by the two-spotted spider mite or dehydrated by cessation of soil watering to check Bt-maize capacity to respond to other stresses than those assured by the presence of Cry protein. Since the antioxidant(More)
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