Eva Kavkova

Department Cell Biology and Physiology
PhD Supervisor Univ.Prof.Dr. Raimund Tenhaken
PhD Co-Supervisor Dr. Marion Höpflinger
Start WS 14/15
Contact eva.ivanov-kavkova(at)sbg.ac.at
Doctoral Thesis Topic Sugar kinases in plants


Nucleotide sugars are activated forms of monosaccharides and serve as glycosyl donors for glycosyltransferases e.g. in the synthesis of cell wall polysaccharides. Nucleotide sugars are mainly created de novo from products of photosynthesis. During plant metabolism are however free monosaccharides being released. These monosaccharides can be again activated via salvage pathways. Sugar kinases play an important role in the first step of conversion sugars into nucleotide sugars in both cases – in the synthesis as well as in the nucleotide sugars recycling.

This project is focused on sugar-1-kinases from higher plants, which are up to now not so well characterized. In the first part, an arabinokinase from A. thaliana will be investigated. This enzyme is part of the nucleotide sugars recycling (salvage) pathway. A mutant with a point mutation in the kinase domain was previously identified. This mutation is lethal for plants when grown on medium containing arabinose. We will test several hypotheses to explain the lethal phenotype. A further topic deals with xylose metabolism in plants. It is so far unclear, if the salvage pathway, containing a putative enzyme xylokinase, also exists or if this sugar is metabolized different route – via xylulose - and goes to the pentose phosphate pathway.  

Better understanding of sugar kinases and metabolism of nucleotide sugars could in future at least partially help to regulate plant biomass and cell wall composition.

  • News
    „UNInteressant? – "Ideas that will improve our lives": With this slogan Universities Austria (uniko) is launching an online-campaign, in which all of the 22 public universities will cooperate with the Austrian Science Fund the FWF.
    17:00 FRANK MAX MÜLLER (Salzburg/Gießen): The collective is dead, long live the collective! 1968 and the ongoing search for models of cooperation in the arts // REGISTRATION for the online lectures by E-Mail to: Anna.Estermann@sbg.ac.at // https://w-k.sbg.ac.at/figurationen-des-uebergangs
    The botanical gardens of the University of Salzburg will reopen on the 2nd June. Normal opening times will apply from the 2nd June.
    01.09.-12.09.2020, https://ditact.ac.at. Due to the current pandemic situation the ditact_womens IT summer studies of the University of Salzburg will take place a week later than planned, from the 01.09.-12.09.2020. Most of the courses will be held online.
    The Vice Rectorate for Research, Nicola Hüsing, received five thousand face masks, which were donated by Gebrüder Woerle Ges.m.b.H. in keeping with the motto „SHARING is CARING“ . The face masks were given out to the employees of the University of Salzburg.
    Due to the current situation personal contact with the Psychological Counseling Center is not possible at the moment. We are however available by e-mail, telephone, chat or video chat. Unfortunately, our normal range of workshops cannot take place in the usual way. We would however like to offer the following webinars as an alternative.
    We are gradually learning how to adapt to the Corona outbreak, both in our everyday lives as well as at the university. For us, this means changing to online teaching for the duration of the current semester. Courses and exams held in lecture halls and seminar rooms will not be possible, with exception to some special exams. Regulations for this are currently being drawn up; exceptions are also to be made for selected laboratory exercises and practical sports courses.
    Information of 23rd April 2020: The Minister of Science’s new ruling on special regulations for study law at universities has now been announced, which gives us the opportunity to regulate some important matters. Please note that these regulations have been set for a limited time period (i.e. for this semester, but sometimes even beyond this).
    Current information on labour law at PLUS
    The most important information on the changes to research services at the University of Salzburg.
    Distance learning for exchange students and the completion of courses from overseas.
  • Veranstaltungen
  • 04.06.20 acid communism
    04.06.20 Let’s play Infokrieg. Wie die radikale Rechte (ihre) Politik gamifiziert
  • Alumni Club
  • Uni-Shop
  • University of Salzburg's facebook site University of Salzburg's twitter site University of Salzburg's instagram site University of Salzburg's flickr site University of Salzburg's vimeo site