Plant growth depends on intracellular and extracellular variables and their linkage, mediated by the cell membrane. Studying various organisms, e.g. autotroph and heterotroph cell cultures of Chenopodium and larvae of Tenebrio, our analyses involve arthropod plant interactions, plant biochemistry, cell physiology, membrane biology, olfactometry and statistics. Global warming causes various environmental stresses reducing plant growth. Thus, we are interested in plant cell responses to salt and hyper-osmotic stress, heat stress and insect biotic stress. The later can be mediated by compounds of the digested insect surface, the so-called elicitors, i.e. chitosans. Our olfactometry analysis of the negative feed-back of plant cells to chitosans revealed an interesting repellent activity (Fig. 1). Since the very efficient synthetic repellent N,N-diethyl-meta-toluamide (DEET) can affect human health, the enhancement and quantification of repellent activity in Chenopodium cells may represent a promising alternative. Multivariate analysis of proton flux in plant cell suspensions after salt stress and metabolite sensing is a further topic. The effects of salt stress, hyper-osmotic stress, ion channel inhibitors, salt stress modulator proline, amino acids, carboxylic acids and plant growth regulators characterize five principal components of extracellular proton flux. A component depending on the antagonistic regulation by ɣ-aminobutyric acid (GABA) and salicylic acid indicates a function of acid sensing ion channels (ASICs) in salt stress sensing. The extreme temperature-dependence of proton flux and its linkage to responses of the actin cytoskeleton are part of this field of research. Our new focus is urban biology in Bangkok (Anchalee Chaidee, Chulalongkorn University, Bangkok), Phayao (Chatchawal Wongchai, University Phayao) and Salzburg (Wolfgang Pfeiffer) in collaboration with Ilse Foissner (Division of Cellular Dynamics, Universität Salzburg). There, relationships between agriculture in paddy fields and mosquito control are of special interest. In total, we design analytical and practical tools for the improvement of living conditions in urban areas of developing countries. Especially, we search for the proof of principle at the organismic level, e.g. repellency (Fig. 1).

Barrierefreiheit: Kurzbeschreibung des Bildes
Fig. 1 Olfactometry method described by Wongchai C, Chaidee A, Pfeiffer W (2013) Arthropod-Plant Interactions 7: 69-82.

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    On Wednesday, the 27th of November, 2019, the University of Salzburg warmly congratulated 56 graduates who celebrated their graduations and/or completions of doctoral theses.
    Lecturer: Univ.-Prof.in Mag.a Dr.in Susanne Weigelin-Schwiedrzik Date/Time: Monday, 9 December, 2019, 18:00. Location: Bibliotheksaula, University Library, Hofstallgasse 2-4, 5020 Salzburg.
    Once again, the Universitätsbibliothek Salzburg will be opening the Advent 24 Windows in the Hofstallgasse and in the online Advent calendar. Texts and images may "brighten your inspiration" in time for Christmas.
    The conference is organized by the Austrian Institute of Human Rights and takes place in the Edmundsburg am Mönchsberg, Europasaal, 16:00-19:00. Admission is free! Registration required under menschenrechte@sbg.ac.at.
    The physician and psychologist Hendrik Lehnert was solemnly introduced to his position as Rector of the Paris Lodron University Salzburg on FR 22.11.19. The new rector will be assisted by materials chemist, Nicola Hüsing; innovation expert, Katja Hutter; financial expert, Barbara Romauer; and sociologist, Martin Weichbold. Click here for Photo Gallery
    The Department of Slavonic Studies, together with the cultural center DAS KINO, would like to cordially invite you for the fourth part of the successful cinema series of the East and Central European films. The film club "Slawistyka, Slavistika, Cławistika" presents award-winning current Polish, Russian and Czech films with social and political themes.
    Prof. Otto Seppälä will hold a guest lecture on "Natural selection on immune function" at 14:00 on 13 December, 2019, in HS 434 of the Faculty of Natural Sciences, Hellbrunnerstrasse 34. The Department of Life Sciences invites you to attend!
    THEME FIELD LITERATURE: 18:00h - "Beginning in the System: Finding, Ordering, Shaping, Remembering, Speech in Rhetoric: LECTURE by Stephan Kammer (Prof. for Modern German Literature, University of Munich) // 19:15h - "The Snowball Effect: Too big to progress further", READING by Ann Cotten (author, lives in Berlin and Vienna) // wk.sbg.ac.at/figurationen-des-uebergangs
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    11.12.19 Lichtvolle Impulse in der vorweihnachtlichen Zeit
    11.12.19 SOZIALE WÄRME oder die Freude an der Neugierde
    11.12.19 Veranstaltungsreihe "Sozialpädagogische Blicke" 2019/20
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    12.12.19 Figurationen und Szenen des Beginnens: Themenfeld LITERATUR
    12.12.19 Salzburger Juristische Gesellschaft
    13.12.19 Lichtvolle Impulse in der vorweihnachtlichen Zeit
    13.12.19 Natural selection on immune function
    14.12.19 Lichtvolle Impulse in der vorweihnachtlichen Zeit
    15.12.19 Lichtvolle Impulse in der vorweihnachtlichen Zeit
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