title: Free and Cell Wall-Bound Polyamines under Long-Term Water Stress Applied at Different Growth Stages of ×Triticosecale Wittm.
abstract: BACKGROUND
  Long-stemmed and semi-dwarf cultivars of triticale were exposed to water stress at tillering, heading and anthesis stage. Quantitative determination of free and cell wall-bound polyamines, i.e. agmatine, cadaverine, putrescine, spermidine and spermine, was supplemented with an analysis of quantitative relationships between free and cell wall-bound polyamines.
  
  
  RESULTS
  The content of free and cell wall-bound polyamines varied depending on the development stage, both under optimal and water stress conditions. Drought-induced increase in free agmatine content was observed at all developmental stages in long-stemmed cultivar. A depletion of spermidine and putrescine was also reported in this cultivar, and spermidine was less abundant in semi-dwarf cultivar exposed to drought stress at the three analyzed developmental stages. Changes in the content of the other free polyamines did not follow a steady pattern reflecting the developmental stages. On the contrary, the content of cell wall-bound polyamines gradually increased from tillering, through heading and until anthesis period.
  
  
  CONCLUSIONS
  Water stress seemed to induce a progressive decrease in the content of free polyamines and an accumulation of cell wall-bound polyamines.
authors.affiliation: The Franciszek Górski Institute of Plant Physiology, Polish Academy of Sciences, 30-239, Kraków, Poland.
authors.forename: Tomasz
authors.initials: T
authors.lastname: Hura
authors.affiliation: The Franciszek Górski Institute of Plant Physiology, Polish Academy of Sciences, 30-239, Kraków, Poland.
authors.forename: Michał
authors.initials: M
authors.lastname: Dziurka
authors.affiliation: Department of Plant Physiology, Faculty of Agriculture and Economics, Agricultural University, 30-239, Kraków, Poland.
authors.forename: Katarzyna
authors.initials: K
authors.lastname: Hura
authors.affiliation: The Franciszek Górski Institute of Plant Physiology, Polish Academy of Sciences, 30-239, Kraków, Poland.
authors.forename: Agnieszka
authors.initials: A
authors.lastname: Ostrowska
authors.affiliation: The Franciszek Górski Institute of Plant Physiology, Polish Academy of Sciences, 30-239, Kraków, Poland.
authors.forename: Kinga
authors.initials: K
authors.lastname: Dziurka
mesh_terms: D000376:Agmatine / Q000302:isolation & purification* / Q000378:metabolism; D002103:Cadaverine / Q000302:isolation & purification* / Q000378:metabolism; D002473:Cell Wall / Q000737:chemistry* / Q000378:metabolism; D002851:Chromatography, High Pressure Liquid; D003890:Desiccation; D055864:Droughts; D059828:Plant Cells / Q000737:chemistry / Q000378:metabolism; D011700:Putrescine / Q000302:isolation & purification* / Q000378:metabolism; D013095:Spermidine / Q000302:isolation & purification* / Q000378:metabolism; D013096:Spermine / Q000302:isolation & purification* / Q000378:metabolism; D013312:Stress, Physiological; D000066889:Triticale / Q000737:chemistry* / Q000254:growth & development / Q000378:metabolism; D014867:Water
chemical_list: D014867:Water; D013096:Spermine; D000376:Agmatine; D002103:Cadaverine; D013095:Spermidine; D011700:Putrescine