<Emphasis Type="Italic">n</Emphasis>-Alkanes variability in the diazotrophic cyanobacterium <Emphasis Type="Italic">Anabaena cylindrica</Emphasis> in response to NaCl stress |
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Authors: | Pratiksha Bhadauriya Radha Gupta Surendra Singh Prakash Singh Bisen |
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Institution: | (1) Department of Biotechnology, Madhav Institute of Technology & Science, Gwalior, 474005, India;(2) School of Studies in Microbiology, Jiwaji University, Gwalior, 474011, India |
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Abstract: | n-Alkanes pattern in response to NaCl stress has been studied in the cyanobacterium Anabaena cylindrica. Saturated hydrocarbons were separated and identified by gas chromatography-mass spectrometry (GC-MS) using serially coupled
capillary column. Light chain n-alkanes in the range of C9–C17 (43%) and heavy chain n-alkanes in range of C17–C23 (34%) and C23–C31 (23%) were identified as the major components of total hydrocarbons in the NaCl adapted cells of A. cylindrica. In contrast, NaCl-untreated cells of A. cylindrica had dominance of only long chain n-alkanes in the range of C23–C31 comprising about 94% of its total n-alkanes. The persistence of high level (43%) of short chain n-alkanes (C9–C17) in NaCl adapted cells of A. cylindrica as compared to its negligible level (0.2%) in NaCl untreated counterpart clearly indicates that NaCl stress causes the A. cylindrica to shift towards the synthesis of short chain n-alkanes. |
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Keywords: | Anabaena cylindrica Salinity-stress Diazotrophic n-Alkanes Filamentous |
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