Modification of exopolysaccharide composition and production by three cyanobacterial isolates under salt stress

Öztürk Ş., Aslım B.

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, cilt.17, sa.3, ss.595-602, 2010 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 17 Sayı: 3
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1007/s11356-009-0233-2
  • Dergi Adı: ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.595-602
  • Anahtar Kelimeler: Cyanobacteria, Exopolysaccharide (EPS), Monosaccharide, Salt (NaCl) tolerance, Synechocystis sp, EXTRACELLULAR POLYMERIC SUBSTANCES, STRUCTURAL CHARACTERIZATION, CHROMIUM(VI) RESISTANCE, POLYSACCHARIDE, STRAIN, PSEUDOMONAS, EPS, STABILIZATION, EXPLOITATION, BACTERIA
  • Gazi Üniversitesi Adresli: Evet

Özet

Polysaccharides are renewable resources representing an important class of polymeric materials of biotechnological interest, offering a wide variety of potentially useful products to mankind. Exopolysaccharides (EPSs) of microbial origin with a novel functionality, reproducible physico-chemical properties, stable cost and supply, became a better alternative to polysaccharides of algal origin. EPSs are believed to protect bacterial cells from desiccation, heavy metals or other environmental stresses, including hostimmune responses, and to produce biofilms, thus enhancing the cells chances of colonising special ecological niches. One of the most important stress factor is salt stress for microorganisms. The present investigation is aimed to determine correlation between salt resistance and EPS production by three cyanobacterial isolates (Synechocystis sp. BASO444, Synechocystis sp. BASO507 and Synechocystis sp. BASO511). It is also aimed to investigate the effect of salt concentrations on EPS production by cyanobacteria and effect of salt on monosaccharide composition of EPS.