文献类型： 外文期刊

作者： Li, Hongjie ¹ ; Kang, Xue ² ; Yang, Mengyi ³ ; Kasseney, Boris Dodji ⁴ ; Zhou, Xuguo ⁵ ; Liang, Shiyou ⁶ ; Zhang, Xiaojie ⁷ ; Wen, Jia-Long ⁸ ; Yu, Baoting ⁹ ; Liu, Ning ¹⁰ ; Zhao, Yufen ² ; Mo, Jianchu ¹ ; Currie, Cameron R. ¹ ; Ralph, John ¹¹ ; Yelle, Daniel J. ¹² ;

作者机构： 1.Ningbo Univ, Inst Plant Virol, State Key Lab Managing Biot & Chem Threats Qual &, Key Lab Biotechnol Plant Protect MARA & Zhejiang P, Ningbo 315211, Peoples R China

2.Ningbo Univ, Inst Drug Discovery Technol, Ningbo, Zhejiang, Peoples R China

3.Xiaoshan Management Ctr Termite Control, Hang zhou Xiaoshan Housing Secur & Real Estate Man, Hangzhou 311200, Peoples R China

4.Univ Lome, Fac Sci, Dept Zool, 1 BP1515, Lome, Togo

5.Univ Kentucky, Dept Entomol, Lexington, KY 40546 USA

6.Agr Informat Ctr Pingyang, Renmin Rd 71, Wenzhou 325400, Peoples R China

7.Quzhou Management Ctr Termite Control, Quzhou Housing Secur & Real Estate Management Serv, Quzhou 311200, Peoples R China

8.Beijing Forestry Univ, Beijing Key Lab Lignocellulos Chemis try, 35 Tsinghua East Rd, Beijing 100083, Peoples R China

9.Natl Termite Control Ctr China, Moganshan Rd 695, Hangzhou 310011, Peoples R China

10.Zhejiang Acad Agr Sci, Inst Virol & Biotechnol, Hangzhou, Zhejiang, Peoples R China; Zhejiang Univ, Inst Insect Sci, Coll Agr & Biotechnol, Minist Agr Key Lab Mol Biol Crop Pathogens & Insec, Hangzhou, Peoples R China; Univ Wisconsin Madison, Wisconsin Energy Inst, Dept Energy Great Lakes Bioenergy Res Ctr, Madison, WI 53726 USA; Univ Wisconsin Madison, Dept Bacteriol, Madison, WI 53706 USA; McMaster Univ, David Braley Ctr Antibiot Discovery, Dept Biochem & Biomed Sci, Hamilton, ON, Canada

11.Univ Wisconsin Madison, Dept Biochem, Madison, WI 53706 USA

12.Forest Serv, US Forest Prod Lab, Madison, WI 53726 USA

期刊名称：SCIENCE ADVANCES （ 影响因子：13.6； 五年影响因子：15.4 ）

ISSN： 2375-2548

年卷期： 2023 年 9 卷 21 期

页码：

收录情况： SCI

摘要： Plant cell walls represent the most abundant pool of organic carbon in terrestrial ecosystems but are highly recalcitrant to utilization by microbes and herbivores owing to the physical and chemical barrier provided by lignin biopolymers. Termites are a paradigmatic example of an organism's having evolved the ability to sub-stantially degrade lignified woody plants, yet atomic-scale characterization of lignin depolymerization by ter-mites remains elusive. We report that the phylogenetically derived termite Nasutitermes sp. efficiently degrades lignin via substantial depletion of major interunit linkages and methoxyls by combining isotope-labeled feeding experiments and solution-state and solid-state nuclear magnetic resonance spectroscopy. Exploring the evolutionary origin of lignin depolymerization in termites, we reveal that the early-diverging woodroach Cryptocercus darwini has limited capability in degrading lignocellulose, leaving most polysaccharides intact. Conversely, the phylogenetically basal lineages of "lower" termites are able to disrupt the lignin-polysaccharide inter-and intramolecular bonding while leaving lignin largely intact. These findings advance knowledge on the elusive but efficient delignification in natural systems with implications for next-generation ligninolytic agents.