African Journal of
Biotechnology

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12481

Full Length Research Paper

Competitive biosorption of different forms of lead [Pb(NO3)2 and Pb(CH3COO)2] on growth, biomass and proline in Spirulina platensis (Cyanophyta)

Selin Sayin1*, AyÅŸe Bahar Yilmaz1, Nuray Ergün2 and Funda Turan1  
1Faculty of Fisheries, Mustafa Kemal University, 31200 Iskenderun, Hatay, Turkey. 2Department of Biology, Faculty of Science, Mustafa Kemal University, 31034 Antakya, Hatay, Turkey
Email: [email protected], [email protected]

  •  Accepted: 17 October 2011
  •  Published: 14 December 2011

Abstract

Spirulina platensis growth parameters [chlorophyll a (chl a) and dry-wet weight] effects on proline content, lead accumulation and the combined effect of the different forms of lead [Pb (NO3)2, Pb (CH3COO)2] and pH (6 to 8) were investigated for 192 h. The accumulation and form of lead were determined to be effective on growth parameters. While the highest chl a value (562.37 µgl-1) and lead accumulation (58.74 µgg-1) were found in medium with 30 mgl-1 Pb (CH3COO)2 and pH 6, the highest proline content was found in 30 mgl-1 Pb (NO3)2 and pH 6. This study depict an inverse relationship between lead accumulation in the test algae and low pH which suggests that proline might be produced at the expense of the material(s) required for the development of S. platensis.

 

Key words: Spirulina, heavy metal, growth parameters, uptake

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This article is published under the terms of the Creative Commons Attribution License 4.0

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