Morphogenesis and cell wall changes in maize shoots under simulated microgravity conditions

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: Various plant organs show a spontaneous curvature on a three-dimensional clinostat. Changes in the cell wall metabolism underlying the curvature were examined in maize shoots. In coleoptile nodes, no differences were detected in either the level or the composition of cell wall polysaccharides between the convex and the concave halves. However, the convex side showed a higher activity of (1 → 3),(1 → 4)- β -glucan breakdown, which appears to be associated with the curvature. In the elongating region of coleoptiles, the accumulation of wall polysaccharides occurred in the convex side. There was no significant difference in the glucanase activity between both sides. Thus, the spontaneous curvature in different regions of maize shoots may be brought about through different mechanisms under simulated microgravity conditions.

収録刊行物

  • 宇宙生物科学 = Biological sciences in space  

    宇宙生物科学 = Biological sciences in space 9(4), 337-344, 1995-12-01 

    日本宇宙生物科学会

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各種コード

  • NII論文ID(NAID)
    10002856247
  • NII書誌ID(NCID)
    AN10164806
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    09149201
  • データ提供元
    CJP書誌  CJP引用  J-STAGE 
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