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Tytuł artykułu

Structure-property relationships in mechanically stimulatedSorghum bicolorstalks

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Mechanical properties of plants and underlying structure-property relationships are important for agricultural purposes as well as for biomimetic concepts. In this study, the effect of mechanical stimulation on morphology and bending properties of the stalk was investigated for Sorghum bicolor (Poaceae), a widely used drought-tolerant biomass grass. An experimental set-up allowing for defined growth and mechanical perturbation (flexing) during a defined growth period was designed. Mechanical properties of individual internodes of the stalk were determined by three-point bending tests. We found that the three investigated lines showed differences in their general bending strength in the non-stimulated condition. However, similar high range of bending strength values was measured for all plant lines after they underwent the mechanical stimulation procedure. The anatomy of internode cross-sections was examined to evaluate structure-property relationships. An increased thickness of the outer sclerenchymatous tissue was observed for internodes with higher bending strength values. Dried internodes fail under lower strains but showed higher bending strength. These findings show that mechanosensitivity in sorghum is dependent on genetic as well as environmental factors. The experimental system presented here offers new straight-forward possibilities for S. bicolor line selection for applications requiring mechanical strength of the stalk.
Wydawca

Rocznik
Tom
1
Numer
1
Opis fizyczny
Daty
otrzymano
2014-02-20
zaakceptowano
2014-08-08
online
2014-09-30
Twórcy
autor
  • INM - Leibniz Institute
    for New Materials, Campus D2 2, 66123, Saarbruecken, Germany
autor
  • INM - Leibniz Institute
    for New Materials, Campus D2 2, 66123, Saarbruecken, Germany
  • Department of Materials Engineering
    and the Russell Berrie Nanotechnology Institute, Technion Israel
    Institute of Technology, Haifa 32000, Israel
autor
  • INM - Leibniz Institute
    for New Materials, Campus D2 2, 66123, Saarbruecken, Germany
autor
  • Saarland University, Department of Biosciences - Plant
    Biology, Campus A2 4, 66123 Saarbruecken, Germany
  • Heinrich Heine University, Institute of
    Botany, Universitaetsstr. 1, 40225 Duesseldorf, Germany
  • INM - Leibniz Institute
    for New Materials, Campus D2 2, 66123, Saarbruecken, Germany
  • INM - Leibniz Institute
    for New Materials, Campus D2 2, 66123, Saarbruecken, Germany
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_bima-2014-0001
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