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The effects of temperature and inhibitors of protein biosynthesis on the recovery from gas‐shock of Acer pseudoplatanus cell cultures

Thoiron, Bernard ; Thoiron, Arlette ; Espejo, José ; Guiel, Jeanne Le ; Lüttge, Ulrich ; Thellier, Michel

Physiologia Plantarum, January 1980, Vol.48(1), pp.161-167 [Periódico revisado por pares]

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  • Título:
    The effects of temperature and inhibitors of protein biosynthesis on the recovery from gas‐shock of Acer pseudoplatanus cell cultures
  • Autor: Thoiron, Bernard ; Thoiron, Arlette ; Espejo, José ; Guiel, Jeanne Le ; Lüttge, Ulrich ; Thellier, Michel
  • Assuntos: Temperature ; Inhibitors ; Protein Biosynthesis ; Permeation Systems ; Gas‐Shock ; Cell Suspension Cultures
  • É parte de: Physiologia Plantarum, January 1980, Vol.48(1), pp.161-167
  • Descrição: The resumption of solute uptake capacity lost after gas‐shock of L. cell suspension cultures is severely inhibited by low temperatures (1°C) and by inhibitors of transcription and translation of protein synthesis such as 2‐mercapto‐1 (β‐4‐pyridethyl) benzimidazole (MPB, 40 μg ml), puromycin (around 100 μg ml) and actinomycin (100 μg ml). Cells that have already attained maximum uptake capacity loose it again after less than 1 h in 40 μg ml MPB. Gel‐electrophoresis of the external media of the cells shows that the release of proteins into the solution is affected by shock. The results demonstrate that proteins are involved in the mechanism of solute uptake by the cells, so that these proteins are among the factors altered during shock and recovery, and are important for the understanding of the after‐effects of shock.

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