Breeding of new Ganodernia lucidum strains simultaneously rich in polysaccharides and triterpenes by mating basidiospore-derived monokaryons of two commercial cultivars
文献类型: 外文期刊
第一作者: Ke, Bin-Rong
作者: Ke, Bin-Rong;Liu, Xin-Rui;Wu, Xiao-Ping;Liu, Sheng-Rong;Zhang, Wei-Rui;Ke, Bin-Rong
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关键词: Ganoderma lucidum;Monokaryon;Mating;Polysaccharide;Triterpene
期刊名称:SCIENTIA HORTICULTURAE ( 影响因子:3.463; 五年影响因子:3.672 )
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收录情况: SCI
摘要: The aim of this study was to breed G. lucidum strains simultaneously rich in polysaccharides and triter penes by mating of basidiospore monokaryons of two commercial cultivars, G. lucidum JC and AL. By incubation of freshly collected basidiospores, 31 monokaryons were isolated (19 from strain JC, and 12 from strain AC), and showed significant differences in mycelial growth and contents of polysaccharide and triterpene. Mating between the two strains yielded 83 instances of sexual compatibility. Of the hybrids isolated, sixteen ones that showed moderate and fast substrate colonization were evaluated in terms of fruiting. All the tested hybrids produced fruiting bodies but varied considerably in time to first harvest, productivity, yield distribution, and pileus shape and color. Significant differences in polysaccharide content (from 6.79 to 18.21 mg/g dry weight) and triterpene content (from 5.90 to 10.87 mg/g dry weight) were also observed among the hybrids. Notably, high concentrations of polysaccharides (16.63 mg/g dry weight) and triterpenes (10.50 mg/g dry weight) were both present in hybrid H-23, with satisfactory biological efficiency (19.41%). An antagonism test and random amplified polymorphic DNA (RAPD) analysis indicated that H-23 is a new hybrid strain. This hybrid may be suitable for use in commercial production of G. lucidum for manufacture of more effective health-promoting and medicinal products. To our knowledge, the present study is the first report on the development of new G. lucidum strains via mating by means of basidiospore-derived monokaryons. (C) 2016 Elsevier B.V. All rights reserved.
分类号: S6
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