Alleviation of NaCl-induced effects on Chlorella vulgaris and Chlorococcum humicola by Riboflavin application. | [International Journal of Agriculture and Biology • 2005]

Author(s):

1. M. H. M. Abdel-Rahman: Botany Department, Faculty of Science, Cairo University, El Fayoum, Egypt

2. R. M. Ali: Botany Department, Faculty of Science, Cairo University, El Fayoum, Egypt

3. H. A. Said: Botany Department, Faculty of Science, Cairo University, El Fayoum, Egypt

Abstract:

The interactive effect of NaCl and riboflavin was investigated on the growth and other physiological parameters of Chlorella vulgaris Beij. and Chlorococcum humicola (Nag.) Rab. Low to moderate salinities (50 and 100 mM NaCI) stimulated the growth of both the species while higher levels (150-250 mM NaCl) reduced the growth of C. humicola only. Application of riboflavin led to a significant increase in growth and biosynthesis of pigments in salt treated algae. Salinity decreased the contents of carbohydrates and proteins while riboflavin treatments increased their contents in both tested algae. NaCI treatments increased the accumulation of proline and other free amino acids while riboflavin treatment reduced their contents in both studied algae. It was concluded that riboflavin treatment could alleviate the adverse effects of salinity on both algae.

Page(s): 58-62

DOI: DOI not available

Published: Journal: International Journal of Agriculture and Biology, Volume: 7, Issue: 1, Year: 2005

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