Browsing by Author "Krause, Kirsten"

Now showing items 21-25 of 25

    • Screening for Cellulolytic Plant Enzymes Using Colorimetric and Fluorescence Methods 

      Krause, Kirsten; Olsen, Stian (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-07-03)
      Cellulolytic activity can be measured using a variety of methods, the choice of which depends on the raw material and goals. An inexpensive, rapid, and reliable method, suitable for plants and other sources alike, is based on digestion of the easily degradable soluble cellulose derivative carboxymethylcellulose (CMC). Direct detection of CMC digestion by cellulolytic activity is based on the “negative ...

    • Selective mineral transport barriers at Cuscuta-host infection sites 

      Förste, Frank; Mantouvalou, Ioanna; Kanngiesser, Birgit; Stosnach, Hagen; Lachner, Lena Anna-Maria; Fischer, Karsten; Krause, Kirsten (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-10-11)
      The uptake of inorganic nutrients by rootless parasitic plants, which depend on host connections for all nutrient supplies, is largely uncharted. Using X‐ray fluorescence spectroscopy (XRF), we analyzed the element composition of macro‐ and micronutrients at infection sites of the parasitic angiosperm <i>Cuscuta reflexa</i> growing on hosts of the genus <i>Pelargonium</i>. Imaging methods combining ...

    • Sticky mucilages and exudates of plants – putative microenvironmental design elements with biotechnological value 

      Galloway, Andrew; Knox, Paul; Krause, Kirsten (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-09-24)
      Plants produce a wide array of secretions both above and below ground. Known as mucilages or exudates, they are secreted by seeds, roots, leaves and stems and fulfil a variety of functions including adhesion, protection, nutrient acquisition and infection. Mucilages are generally polysaccharide‐rich and often occur in the form of viscoelastic gels and in many cases have adhesive properties. In some ...

    • The tomato receptor CuRe1 senses a cell wall protein to identify Cuscuta as a pathogen 

      Hegenauer, Volker; Slaby, Peter; Körner, Max; Bruckmüller, Julien-Alexander; Burggraf, Ronja; Albert, Isabell; Kaiser, Bettina; Löffelhardt, Birgit; Droste-Borel, Irina; Sklenar, Jan; Menke, Frank L. H.; Macek, Boris; Ranjan, Aashish; Sinha, Neelima; Nurnberger, Thorsten; Felix, Georg; Krause, Kirsten; Stahl, Mark; Albert, Markus (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-10-20)
      Parasitic plants of the genus Cuscuta penetrate shoots of host plants with haustoria and build a connection to the host vasculature to exhaust water, solutes and carbohydrates. Such infections usually stay unrecognized by the host and lead to harmful host plant damage. Here, we show a molecular mechanism of how plants can sense parasitic Cuscuta. We isolated an 11 kDa protein of the parasite cell ...

    • Whirly proteins as communicators between plant organelles and the nucleus? 

      Krause, Kirsten; Herrmann, Ullrich; Fuss, Janina; Miao, Ying; Krupinska, Karin (Journal article; Tidsskriftartikkel; Peer reviewed, 2009)
      Whirly proteins belong to a small family of proteins with a characteristic secondary structure and a conserved DNA binding domain that is found mainly in angiosperms. At least one member of the Whirly protein family, Whirly1, is dually targeted to the nucleus and to the chloroplasts and it was shown that apart from its initially described function as a transcriptional regulator of nuclear disease ...