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The Scientific World Journal
Volume 2014, Article ID 847290, 11 pages
Research Article

Role of Ulva lactuca Extract in Alleviation of Salinity Stress on Wheat Seedlings

1Botany Department, Faculty of Science, Fayoum University, Fayoum, Egypt
2Plant Protection Department, Faculty of Agriculture, Fayoum University, Fayoum, Egypt

Received 25 July 2014; Accepted 13 October 2014; Published 10 November 2014

Academic Editor: Yong In Kuk

Copyright © 2014 Wael M. Ibrahim et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Seaweeds are potentially excellent sources of highly bioactive materials that could represent useful leads in the alleviation of salinity stress. The effects of presoaking wheat grains in water extract of Ulva lactuca on growth, some enzymatic activities, and protein pattern of salinized plants were investigated in this study. Algal presoaking of grains demonstrated a highly significant enhancement in the percentage of seed germination and growth parameters. The activity of superoxide dismutase (SOD) and catalase (CAT) increased with increasing the algal extract concentration while activity of ascorbate peroxidase (APX) and glutathione reductase (GR) was decreased with increasing concentration of algal extract more than 1% (w/v). The protein pattern of wheat seedling showed 12 newly formed bands as result of algal extract treatments compared with control. The bioactive components in U. lactuca extract such as ascorbic acid, betaine, glutathione, and proline could potentially participate in the alleviation of salinity stress. Therefore, algal presoaking is proved to be an effective technique to improve the growth of wheat seedlings under salt stress conditions.