Fungal Selectivity and Biodegradation Effects by White and Brown Rot Fungi for Wood Biomass Pretreatment.

Content Provider	Europe PMC
Author	Qi, Jiyun Li, Fangfang Jia, Lu Zhang, Xiaoyuan Deng, Shuduan Luo, Bei Zhou, Yonghui Fan, Mizi Xia, Yan
Editor	Labidi, Jalel
Copyright Year	2023
Abstract	The biodegradation path and mechanism of wood varies depending on diverse fungi and tree species, as fungi possess selectivity in degradation of versatile wood components. This paper aims to clarify the actual and precise selectivity of white and brown rot fungi and the biodegradation effects on different tree species. Softwood (Pinus yunnanensis and Cunninghamia lanceolata) and hardwood (Populus yunnanensis and Hevea brasiliensis) were subjected to a biopretreating process by white rot fungus Trametes versicolor, and brown rot fungi Gloeophyllum trabeum and Rhodonia placenta with various conversion periods. The results showed that the white rot fungus Trametes versicolor had a selective biodegradation in softwood, which preferentially convert wood hemicellulose and lignin, but cellulose was retained selectively. Conversely, Trametes versicolor achieved simultaneous conversion of cellulose, hemicellulose and lignin in hardwood. Both brown rot fungi species preferentially converted carbohydrates, but R. placenta had a selectivity for the conversion of cellulose. In addition, morphological observation showed that the microstructures within wood changed significantly, and the enlarged pores and the improved accessibility could be beneficial for the penetration and accessibility of treating substrates. The research outcomes could serve as fundamental knowhows and offer potentials for effective bioenergy production and bioengineering of bioresources, and provide a reference for further application of fungal biotechnology.
Journal	Polymers
Volume Number	15
PubMed Central reference number	PMC10144154
Issue Number	8
PubMed reference number	37112109
e-ISSN	20734360
DOI	10.3390/polym15081957
Language	English
Publisher	MDPI
Publisher Date	2023-04-20
Access Restriction	Open
Rights License	Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). © 2023 by the authors.
Subject Keyword	fungi’s selectivity biodegradation softwood and hardwood chemical components biotechnology
Content Type	Text
Resource Type	Article
Subject	Chemistry Polymers and Plastics