Biochemical composition and antioxidant potentiality of Synechococcus mundulus and Arthrospira platensis in response to ionizing radiation

Document Type : Research Article

Authors

1 Department of Botany, Faculty of Science, Mansoura University

2 Department of Microbial Biotechnology, Genetic Engineering and Biotechnology Research Institute, University of Sadat City, Sadat City

3 Biological Application Dept., Nuclear Research center, Atomic Energy Authority Cairo.

10.21608/mjb.2020.460720

Abstract

This study aimed to investigate the effect of ionizing gamma irradiation on variation in the biochemical composition and change in the antioxidant activity of Synechococcus mundulus and Arthrospira platensis. Cultures of S. mundulus and A. platensis were irradiated with two doses of gamma irradiation (1.0 and 2.0) kGy. Both irradiated and control cultures were allowed to grow in BG11 medium for 21 and 24-d for S. mundulus and A. platensis, respectively. In the irradiated cultures, biochemical analysis revealed an increment in the total carbohydrate content in both A. platensis and S. mundulus, meanwhile total free amino acids recorded significant increment in A. platensis and non-significant in S. mundulus. Though soluble protein content was significantly decreased in irradiated cultures of A. platensis and non-significant decrease in S. mundulus. In addition, super oxide dismutase potentiality was also significantly activated in the irradiated cultures.  

Keywords

Mansoura Journal of Biology
Volume 48, Issue 3
September 2020
Pages 61-66

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