Abstract
The effect of NaCl on cell growth and polysaccharide biosynthesis in the medicinal mushroom Phellinus linteus was studied. With the increase of NaCl concentration between 1 g/l and 7 g/l in the culture medium, the cell growth and intracellular polysaccharide (IPS) accumulation were decreased; extracellular polysaccharide (EPS) concentration was enhanced, with an increase of NaCl concentration from 1 g/l to 3 g/l. Under the optimum NaCl concentration of 3 g/l, the maximum EPS and IPS production reached 2.2±0.15 g/l and 53.6±2.45 mg/g DW on day 12, which improved 32.27% and decreased 16.89% compared to the control, respectively. Both EPS and IPS showed new polysaccharide components by fractionation with DEAE-cellulose ion exchange chromatography compared to the control. The results presented in this study are considered helpful for further investigation on the diversity of polysaccharide biosynthesis of this medicinal fungus under NaCl environments.
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Financial support was received from Southwest China Normal University, The Technological Foundation Program (Contract No. SWNUQ2004015), and Chongqing Nature Science Foundation Program (Contract No. CSTC, 2005BB1101).
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Zou, X., Sun, M. & Guo, X. Quantitative response of cell growth and polysaccharide biosynthesis by the medicinal mushroom Phellinus linteus to NaCl in the medium. World J Microbiol Biotechnol 22, 1129–1133 (2006). https://doi.org/10.1007/s11274-006-9153-1
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DOI: https://doi.org/10.1007/s11274-006-9153-1