Evaluation of Effects of Mg2+and Cu2+on Pigment-Metabolite Production and Photosystem II Activity of Arthrospira platensis Gomont 1892

Öztürk Ürek R., Kerimoglu Y.

TURKISH JOURNAL OF FISHERIES AND AQUATIC SCIENCES, vol.19, no.10, pp.873-883, 2019 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 19 Issue: 10
  • Publication Date: 2019
  • Doi Number: 10.4194/1303-2712-v19_10_07
  • Journal Name: TURKISH JOURNAL OF FISHERIES AND AQUATIC SCIENCES
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.873-883
  • Keywords: Phycocyanin, Chlorophyll a, beta-carotene, Cu2+, Mg2+, Photosystem II, Arthrospira platensis, MAGNESIUM-DEFICIENCY, IN-VIVO, PHYSIOLOGICAL CHARACTERIZATION, GREEN MICROALGAE, SPIRULINA-MAXIMA, COPPER, PROLINE, PHYCOCYANIN, CHLORELLA, STRAINS
  • Dokuz Eylül University Affiliated: Yes

Abstract

The aim of this study was to investigate the effects of Mg2+ (0-4 mM), and Cu2+ (0-5 mu M) concentrations on biomass and photosynthetic pigment-metabolites, and photosystem II activity in Arthrospira platensis Gomont 1892. The highest biomass was determined on control condition including both Mg2+ (0.8 mM) and Cu2+ (0.5 mu M) as 49.1 +/- 1.6 mg mL(-1). Although the levels of phycocyanin, allophycocyanin and chlorophyll a were varied due to Mg2+ concentration, phycocyanin and allophycocyanin were the major fractions. The highest chlorophyll a level was detected at 0.5 mu M Cu2+. The major carotenoid was beta-carotene, and its highest value was determined in the absence of Cu2+ as 2400 +/- 60 mu g mL(-1). In addition, excessive and insufficient amounts of Mg2+ and Cu2+ caused a decrease in photosystem II activities of A. platensis. This work provides a good example for the production of carotenoids for use in various industries, such as food, cosmetic and pharmaceutical products.