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The influence of growth regulators on membrane permeability in cultures of winter wheat cells

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    SYSNO ASEP0107466
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JOstatní články
    TitleThe influence of growth regulators on membrane permeability in cultures of winter wheat cells
    TitleVliv regulátorů růstu na permeabilitu membrán v kulturách buněk z ozimé pšenice
    Author(s) Filek, M. (PL)
    KoĽcielniak, J. (PL)
    Marcińska, I. (PL)
    Macháčková, Ivana (UEB-Q)
    Krekule, Jan (UEB-Q)
    Source TitleZeitschrift fuer Naturforschung. Section C: a Journal of Biosciences. - : Walter de Gruyter - ISSN 0939-5075
    Roč. 59, 9/10 (2004), s. 673-678
    Number of pages6 s.
    Languageeng - English
    CountryDE - Germany
    Keywordsgrowth regulators ; cells ; permeability
    Subject RIVGC - Agronomy
    R&D ProjectsIBS5038352 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
    CEZAV0Z5038910 - UEB-Q
    AnnotationThe effect of plant growth substances (IAA, 2,4-D, zeatin, kinetin, zearalenone) were studied on membrane properties of the cells of embryogenic (E) and non-embryogenic (NE) calli derived from immature inflorescences (inf) or embryos (emb) of winter wheat. Calli initiated from inflorescences show higher permeability. The ion leakage from cells of E calli was higher than from cells of NE calli. Growth regulators were used in concentrations of 2-30 mg/l (about 10-140 muM). All tested growth substances increased ion leakage from NE emb cells, IAA, zeatin and kinetin being most effective. In NE inf cells the effect of growth substances was similar as in NE emb, but much weaker. In E cells of both types (inf and emb) growth substances decreased ion leakage. Changes in the leakage of potassium and calcium ions were similar to those in total ion leakage. The uptake of labelled auxins (IAA and 2,4-D) was higher in NE cells (especially in NE inf) than in E cells. The endogenous level of IAA was higher in E cells than in NE cells and in inf cells than in emb cells. The importance of auxin in determining permeability of cell membranes is discussed.
    WorkplaceInstitute of Experimental Botany
    ContactDavid Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469
    Year of Publishing2005
Number of the records: 1  

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