Comparative Proteomic Analysis of Flammulina filiformis Reveals Substrate-Specific Enzymatic Strategies for Lignocellulose Degradation

文献类型： 外文期刊

第一作者： Li, Weihang

作者： Li, Weihang;Han, Jiandong;Xie, Hongyan;Gong, Zhiyuan;Li, Weihang;Sun, Yi;Li, Feng;Zou, Yajie

作者机构：

关键词： Flammulina filiformis; lignocellulose degradation; secretory proteomics

期刊名称：HORTICULTURAE （ 影响因子：3.0； 五年影响因子：3.2 ）

ISSN：

年卷期： 2025 年 11 卷 8 期

页码：

收录情况： SCI

摘要： Flammulina filiformis, one of the most delicious and commercially important mushrooms, demonstrates remarkable adaptability to diverse agricultural wastes. However, it is unclear how different substrates affect the degradation of lignocellulosic biomass and the production of lignocellulolytic enzymes in F. filiformis. In this study, label-free comparative proteomic analysis of F. filiformis cultivated on sugarcane bagasse, cotton seed shells, corn cobs, and glucose substrates was conducted to identify degradation mechanism across various substrates. Label-free quantitative proteomics identified 1104 proteins. Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathway analysis of protein expression differences were predominantly enriched in energy metabolism and carbohydrate metabolic pathways. Detailed characterization of carbohydrate-active enzymes among the identified proteins revealed glucanase (GH7, A0A067NSK0) as the key enzyme. F. filiformis secreted higher levels of cellulases and hemicellulases on sugarcane bagasse substrate. In the cotton seed shells substrate, multiple cellulases functioned collaboratively, while in the corn cobs substrate, glucanase predominated among the cellulases. These findings reveal the enzymatic strategies and metabolic flexibility of F. filiformis in lignocellulose utilization, providing novel insights for metabolic engineering applications in biotechnology. The study establishes a theoretical foundation for optimizing biomass conversion and developing innovative substrates using targeted enzyme systems.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序