Effects of phytohormones on mycelial growth and exopolysaccharide biosynthesis of medicinal mushroom <Emphasis Type="Italic">Pellinus linteus</Emphasis> |
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| Authors: | Xia Guo Xiang Zou Min Sun |
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| Institution: | (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;(2) College of Pharmaceutical Sciences, Southwest University, 2 Tian Sheng Road, Beibei, 400715 Chongqing, People’s Republic of China;(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; |
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| 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.
An erratum to this article can be found at |
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| Keywords: | Exopolysaccharide Mycelial growth Naphthalentacetic acid Pellinus linteus Phytohormone |
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