Effects of Different Substrates on Lignocellulosic Enzyme Expression, Enzyme Activity, Substrate Utilization and Biological Efficiency of Pleurotus Eryngii

文献类型： 外文期刊

第一作者： Xie, Chunliang

作者： Xie, Chunliang;Yan, Li;Gong, Wenbing;Zhu, Zuohua;Tan, Senwei;Chen, Du;Hu, Zhenxiu;Peng, Yuande

作者机构：

关键词： Lignocellulosic enzyme;Secretome;Pleurotus eryngii;LC-MS/MS;TMT

期刊名称：CELLULAR PHYSIOLOGY AND BIOCHEMISTRY （ 影响因子：5.5； 五年影响因子：4.354 ）

ISSN： 1015-8987

年卷期： 2016 年 39 卷 4 期

页码：

收录情况： SCI

摘要： Background/Aims: Pleurotus eryngii is one of the most valued and delicious mushrooms which are commercially cultivated on various agro-wastes. How different substrates affect lignocellulosic biomass degradation, lignocellulosic enzyme production and biological efficiency in Pleurotus eryngii was unclear. Methods and Results: In this report, Pleurotus eryngii was cultivated in substrates including ramie stalks, kenaf stalks, cottonseed hulls and bulrush stalks. The results showed that ramie stalks and kenaf stalks were found to best suitable to cultivate Pleurotus eryngii with the biological efficiency achieved at 55% and 57%, respectively. In order to establish correlations between different substrates and lignocellulosic enzymes expression, the extracellular proteins from four substrates were profiled with high throughput TMT-based quantitative proteomic approach. 241 non-redundant proteins were identified and 74 high confidence lignocellulosic enzymes were quantified. Most of the cellulases, hemicellulases and lignin depolymerization enzymes were highly up-regulated when ramie stalks and kenaf stalks were used as carbon sources. The enzyme activities results suggested cellulases, hemicellulases and lignin depolymerization enzymes were significantly induced by ramie stalks and kenaf stalks. Conclusion: The lignocelluloses degradation, most of the lignocellulosic enzymes expressions and activities of Pleurotus eryngii had positive correlation with the biological efficiency, which depend on the nature of lignocellulosic substrates. In addition, the lignocellulosic enzymes expression profiles during Pleurotus eryngii growth in different substrates were obtained. The present study suggested that most of the lignocellulosic enzymes expressions and activities can be used as tools for selecting better performing substrates for commercial mushroom cultivation. (C) 2016 The Author(s) Published by S. Karger AG, Basel

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