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The involvement of calmodulin and protein kinases in the upstream of cytosolic and nucleic calcium signaling induced by hypoosmotic shock in tobacco cells.
Nguyen, H T H; Bouteau, F; Mazars, C; Kuse, M; Kawano, T.
Afiliação
  • Nguyen HTH; a Laboratory of Chemical Biology and Bioengineering, Faculty and Graduate School of Environmental Engineering , The University of Kitakyushu , Kitakyushu , Japan.
  • Bouteau F; b Sorbonne Paris Cité, Laboratoire Interdisciplinaire des Energies de Demain , Université Paris Diderot , Paris , France.
  • Mazars C; c University of Florence LINV Kitakyushu Research Center (LINV@Kitakyushu) , Kitakyushu , Japan.
  • Kuse M; d International Photosynthesis Industrialization Research Center , The University of Kitakyushu , Kitakyushu , Japan.
  • Kawano T; e Laboratoire de Recherches en Sciences Végétales , Université de Toulouse UPS, CNRS UMR , Castanet-Tolosan , France.
Plant Signal Behav ; 13(8): e1494467, 2018.
Article em En | MEDLINE | ID: mdl-30067454
Changes in Ca2+ concentrations in cytosol ([Ca2+]C) or nucleus ([Ca2+]N) may play some vital roles in plants under hypoosmotic shock (Hypo-OS). Here, we observed that Hypo-OS induces biphasic increases in [Ca2+]C and [Ca2+]N in two tobacco cell lines (BY-2) expressing apoaequorin either in the cytosol or in the nucleus. Both [Ca2+]C and [Ca2+]N were sensitively modulated by the inhibitors of calmodulin and protein kinases, supporting the view that calmodulin suppresses the 1st peaks and and protein kinases enhance 2nd peaks in [Ca2+]C and [Ca2+]N. Data also suggested that the 1st and 2nd events depend on the internal and extracellular Ca2+ sources, respectively.
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Proteínas Quinases / Nicotiana / Calmodulina / Citosol Idioma: En Ano de publicação: 2018 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Proteínas Quinases / Nicotiana / Calmodulina / Citosol Idioma: En Ano de publicação: 2018 Tipo de documento: Article