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Effects of phytohormones on mycelial growth and exopolysaccharide biosynthesis of medicinal mushroom Pellinus linteus

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An Erratum to this article was published on 23 June 2009

Abstract

Effects of phytohormones including indole-3-acetic acid (IAA), indole-3-butyric acid (IBA) and 1-naphthalentacetic acid (NAA) on mycelial growth of medicinal mushroom Phellinus linteus were investigated. Under the optimal IAA, IBA and NAA concentration of 1.0, 1.5 and 5.0 mg/l, the maximal mycelial diameter reached 8.6 ± 0.4, 7.3 ± 2.6 and 9.0 ± 1.0 mm, respectively. The mycelial biomass and exopolysaccharide (EPS) production with addition of 5.0 mg/l NAA in a shake flask were 6.24 ± 0.18 g/l at 168 h and 0.86 ±0.01 g/l at 192 h, which were enhanced by 15.98 and 56.36% compared to the control, respectively. However, the molecular weight and infrared spectrum of EPS were coincident with the control. Results indicated that NAA at the proper concentration was beneficial in stimulating mycelial growth and EPS biosynthesis, whereas it could not alter the molecular structure of EPS.

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Acknowledgments

Financial support was received from Chongqing Natural Science Foundation Program (Contract No. CSTC, 2005BB1101), and the Opening Fund of Chongqing Key Laboratory of Luminescence and Real-time Analysis (Project No. CSTC, 2006CA8006).

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Authors and Affiliations

  1. Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, 2 Tian Sheng Road, Beibei, 400715, Chongqing, People’s Republic of China

    Xia Guo & Min Sun

  2. College of Pharmaceutical Sciences, Southwest University, 2 Tian Sheng Road, Beibei, 400715, Chongqing, People’s Republic of China

    Xia Guo & Xiang Zou

  3. Chongqing Municipal Key Laboratory on Luminescence and Real-Time Analysis, CQKL-LRTA, College of Chemistry and Chemical Engineering, Southwest University, 400715, Chongqing, People’s Republic of China

    Xiang Zou

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  1. Xia Guo
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  2. Xiang Zou
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  3. Min Sun
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Correspondence to Xiang Zou or Min Sun.

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An erratum to this article can be found at http://dx.doi.org/10.1007/s00449-009-0344-7

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Guo, X., Zou, X. & Sun, M. Effects of phytohormones on mycelial growth and exopolysaccharide biosynthesis of medicinal mushroom Pellinus linteus . Bioprocess Biosyst Eng 32, 701–707 (2009). https://doi.org/10.1007/s00449-009-0326-9

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