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Asian Journal of Plant Sciences
  Year: 2004 | Volume: 3 | Issue: 4 | Page No.: 455-462
DOI: 10.3923/ajps.2004.455.462
 
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Involvement of Sugars in the Response of Pepper Plants to Salinity: Effect of Calcium Application

C. Lopez-Berenguer, C.F. Alcaraz and M. Carlos

Abstract:
Plants grown under saline conditions show changes in carbohydrate metabolism. Furthermore, calcium (Ca2+) plays an important role as a metabolic regulator. This work was carried out in order to assess the effect of external calcium application on sucrose metabolism and sugar contents in pepper plants (Capsicum annuum L. Cv. California) exposed to salinity. Calcium added with salinity showed ameliorative effect on growth and CO2 assimilation. In salinity-treated plants, the high hydrolytic activity observed could be a consequence of the activation of alternative pathways for obtaining energy. However, in plants treated with both salinity and calcium, the effect of calcium on sucrose phosphate synthase (SPS) and sucrose synthase (SS) could reveal an involvement (direct or indirect) by calcium. In any case, the effect of calcium application on sugar metabolism could explain its ameliorative effect under saline conditions.
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How to cite this article:

C. Lopez-Berenguer, C.F. Alcaraz and M. Carlos , 2004. Involvement of Sugars in the Response of Pepper Plants to Salinity: Effect of Calcium Application. Asian Journal of Plant Sciences, 3: 455-462.

DOI: 10.3923/ajps.2004.455.462

URL: https://scialert.net/abstract/?doi=ajps.2004.455.462

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