Journal of
Medicinal Plants Research

  • Abbreviation: J. Med. Plants Res.
  • Language: English
  • ISSN: 1996-0875
  • DOI: 10.5897/JMPR
  • Start Year: 2007
  • Published Articles: 3835

Full Length Research Paper

Macromolecular and fatty acid profile studies on symbiotic cyanobacterial isolates of cyanolichens

Shyam Kumar R.1,2*, Naif Abdullah Al-Harbi3 and Thajuddin N.4
1Department of Botany and Microbiology, College of Science, King Saud University, P. O. Box 2455, Riyadh 11451, Saudi Arabia. 2Department of Biotechnology, Kamaraj College of Engineering and Technology, Virudhunagar, Tamil Nadu 620 024, India. 3Department of Botany and Microbiology, Addiriyah Chair for Environmental Studies, College of Science, King Saud University, P. O. Box 2455, Riyadh 11451, Saudi Arabia. 4Department of Microbiology, Bharathidasan University, Trichirapalli, Tamil Nadu, 620 024, India.
Email: [email protected]

  •  Accepted: 01 April 2011
  •  Published: 09 September 2011

Abstract

The cellular carbohydrate, protein and fatty acid content of three cyanobacterial strains belong to the genera Aphanocapsa sp. (NTK28) and Nostoc species (NTK29 and NTY30) isolated from cyanolichens analyzed. Among the three cyanobacterial species, Nostoc sp. (NTK 29) showed the maximum of total carbohydrate, protein and lipid content about 25, 15 and 14%, respectively. Gas chromatographic analysis showed that, three cyanobacterial isolates has an array of fatty acids. A total of 17 fatty acids both saturated and unsaturated were detected from three cyanobacterial isolates. Among these, 8 types fell under saturated and 9 types unsaturated fatty acids which comprise mono and polyunsaturated fatty acids including ω9, ω6 and ω3 found in the organisms. Single fatty acid stearic acid (C18:0) was commonly present in three cyanobacterial isolates whereas, eicosedienoic acid (20:1) ω9 was present in single cyanobacterium Nostoc sp (NTK29).

 

Key words: Fatty acids, cyanobacteria, carbohydrate, protein, lipids.

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