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

Abstract

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
    On 22 October, 2019, 17:00 - 20:00, the conference "Erosion of the Rule of Law" takes place in the Europasaal on the Edmundsburg. Democracy, the rule of law and respect for human rights are among the pillars of the European order. In recent years, however, these values have come under increasing pressure in some countries.
    At the 122nd Annual Meeting in Paderborn, the Salzburg educational scientist, Sabine Seichter, was elected to the board of the interdisciplinary and international Görres-Gesellschaft.
    "The Paris-Lodron-University Salzburg sincerely congratulates its honorary doctor, Peter Handke, on the award of the Nobel Prize for Literature 2019", emphasizes Rector Hendrik Lehnert. The University’s bond to the life and work of this important Austrian author is documented on several levels, in particular with the Salzburg Germanists and the Literary Archive, according to Lehnert.
    The battery researchers from the Department of Chemistry and Physics of the Materials of PLUS congratulate and rejoice with the three freshly curated Nobel Laureates John B. Goodenough, M. Stanley Whittingham, and Akira Yoshino!
    On 18 September, 2019, the second round of Karriere_Mentoring III, the career development program for female scientists (PhD and post-doctoral students) of the Universities of Krems, Linz and Salzburg, began.
    History in regional museums, but how? A lecture series in cooperation with the Landesverband der Salzburger Museen und Sammlungen discusses concepts and practice.
    The moon as the brightest night star with its changing shape during the month, its disappearance on new moon or the exceptional event of an eclipse has inspired people of all ages, including Ancient Egypt, to reflect on the causes and effects of these phenomena.
    The Department of Slavonic Studies would like to cordially invite you, together with the cultural center DAS KINO, to the fourth part of our successful cinema series of East and Central European films. The film club "Slawistyka, Slavistika, Cлавистика" presents award-winning current Polish, Russian and Czech films with social and political themes.
    Become an expert in EU politics, law and economics
    On Tuesday, 22 October, 2019, the Salzburg Congress will host the Career Forum, the big job fair of the Salzburger Nachrichten, with a workshop program. For the 13th time, the University of Salzburg has partnered with Salzburg's largest career platform.
    Democracy and the rule of law seem to have experienced better times in Europe. The recent developments in many countries point to a dismantling of the rule of law, fundamental rights and democracy.
    On 24.10.2019, the Salzburg Social and Medical Law Days, which were launched in the previous year in cooperation between the Federation of Austrian Social Security Institutions and the Department of Labor and Economic Law of the University of Salzburg, will take place for the second time. The aim of this series of events is the discussion of current social security issues from the perspective of science and practice.
    Dr. Beate Apfelbeck will give a guest lecture on the topic of "Maternal investment strategies of a cooperative breeding forest specialist in degraded cloud forest fragments" at 14:00 on 25 October, 2019, in the Hörsaal 413 of the NW-Faculty. The Department of Life Sciences invites you to attend!
    On the 25th of October, the opening ceremony of the 20th anniversary of the China Centre takes place in the Großen Aula. There will be several performances, including Chinese dance, traditional Chinese acrobatics and Chinese music. All interested parties are invited to participate free of charge.
    The WissensNetzwerk Recht, Wirtschaft und Arbeitswelt der Universität Salzburg has organized a symposium, which will be held the 31st of October, 2019, on income taxation of partnerships (co-entrepreneurship).
    THURSDAY, 21 Nov.: LECTURES (08.30-19:00h) at Wissenschaft & Kunst, Bergstr. 12a, KunstQuartier, Studio 1.OG // FRIDAY, 22 Nov: EXCURSION (08:30-16:00h) Memorial Concentration Camp Ebensee, memorial Mauthausen. Departure: At 08:30, from Unipark Nonntal, Erzabt-Klotz-Straße 1.
  • Veranstaltungen
  • 21.10.19 Dr. Gilles R. Bourret Venia: „Materialwissenschaft“
    22.10.19 Dr. Roland Geisberger Venia: „Molekulare Biologie“
    23.10.19 Praxisdialog im Steuerrecht
    24.10.19 Salzburger Sozial- und Medizinrechtstage "Umsetzung der Neuorganisation der Sozialversicherung"
    24.10.19 Effects of short-wavelength light on non-visual re-sponses: The role of S cones and rods
    24.10.19 Salzburger Museen und Sammlungen - Geschichte vor Ort. Turmmuseum Zell am See. Die Neugestaltung eines Regionalmuseums mit internationalem Publikum
  • Alumni Club
  • PRESS
  • 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