Immunolocalization of FsPK1 correlates this abscisic acid-induced protein kinase with germination arrest in Fagus sylvatica L. seeds

An enzymatically active recombinant protein kinase, previously isolated and characterized in Fagus sylvatica L. dormant seeds (FsPK1), was used to obtain a specific polyclonal antibody against this protein. Immunoblotting and immunohistochemical analysis of FsPK1 protein in beech seeds showed a stro...

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Veröffentlicht in:Journal of experimental botany. - 1985. - 57(2006), 4 vom: 31., Seite 923-9
1. Verfasser: Reyes, David (VerfasserIn)
Weitere Verfasser: Rodríguez, Dolores, Lorenzo, Oscar, Nicolás, Gregorio, Cañas, Rafael, Cantón, Francisco R, Canovas, Francisco M, Nicolás, Carlos
Format: Aufsatz
Sprache:English
Veröffentlicht: 2006
Zugriff auf das übergeordnete Werk:Journal of experimental botany
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Antibodies Gibberellins Plant Proteins Abscisic Acid 72S9A8J5GW gibberellic acid BU0A7MWB6L Protein Kinases EC 2.7.-
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245 1 0 |a Immunolocalization of FsPK1 correlates this abscisic acid-induced protein kinase with germination arrest in Fagus sylvatica L. seeds 
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520 |a An enzymatically active recombinant protein kinase, previously isolated and characterized in Fagus sylvatica L. dormant seeds (FsPK1), was used to obtain a specific polyclonal antibody against this protein. Immunoblotting and immunohistochemical analysis of FsPK1 protein in beech seeds showed a strong immunostaining in the nucleus of the cells located in the vascular tissue of the embryonic axis corresponding to the future apical meristem of the root. This protein kinase was found to accumulate in the seeds only when embryo growth was arrested by application of ABA, while the protein amount decreased during stratification, previously proved to alleviate dormancy, and no protein was detected at all when seed germination was induced by addition of GA(3). These results indicate that FsPK1 may be involved in the control of the embryo growth mediated by ABA and GAs during the transition from dormancy to germination in Fagus sylvatica seeds 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
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700 1 |a Rodríguez, Dolores  |e verfasserin  |4 aut 
700 1 |a Lorenzo, Oscar  |e verfasserin  |4 aut 
700 1 |a Nicolás, Gregorio  |e verfasserin  |4 aut 
700 1 |a Cañas, Rafael  |e verfasserin  |4 aut 
700 1 |a Cantón, Francisco R  |e verfasserin  |4 aut 
700 1 |a Canovas, Francisco M  |e verfasserin  |4 aut 
700 1 |a Nicolás, Carlos  |e verfasserin  |4 aut 
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