Widespread Bathyarchaeia encode a novel methyltransferase utilizing lignin-derived aromatics
作者机构：School of OceanographyShanghai Jiao Tong UniversityShanghaiChina State Key Laboratory of Microbial MetabolismSchool of Life Sciences and BiotechnologyShanghai Jiao Tong UniversityShanghaiChina Southern Marine Science and EngineeringGuangdong Laboratory(Zhuhai)ZhuhaiChina
出 版 物：《mLife》 (微生物（英文）)
年 卷 期：2023年第2卷第3期
页 面：272-282页
核心收录：
学科分类：0710[理学-生物学] 1007[医学-药学(可授医学、理学学位)] 100705[医学-微生物与生化药学] 07[理学] 071005[理学-微生物学] 10[医学]
基 金：supported financially by the Natural Science Foundation of China(Grants 42276139,42230401,42141003,41921006,92051116,91951209) 2030 Project,Shanghai Jiao Tong University(Grant WH510244001) the National Postdoctoral Program for Innovative Talents(Grant No.BX20190204)
主 题：Bathyarchaeia coastal sediments lignin-degrading lignin-derived aromatics specific methyltransferase
摘 要：Lignin degradation is a major process in the global carbon cycle across both terrestrial and marine ***,which are among the most abundant microorganisms in marine sediment,have been proposed to mediate anaerobic lignin ***,the mechanism of bathyarchaeial lignin degradation remains ***,we report an enrichment culture of Bathy-archaeia,named Candidatus Baizosediminiarchaeum ligniniphilus DL1YTT001(***),from coastal sediments that can grow with lignin as the sole organic carbon source under mesophilic anoxic *** possesses and highly expresses novel methyltransferase 1(MT1,mtgB)for transferring methoxyl groups from lignin monomers to cob(I)*** have no homology with known microbial methyltransferases and are present only in bathyarchaeial *** expression of the mtgB gene confirmed O-demethylation *** mtgB genes were identified in metagenomic data sets from a wide range of coastal sediments,and they were highly expressed in coastal sediments from the East China *** findings suggest that Bathyarchaeia,capable of O-demethylation via their novel and specific methyltransferases,are ubiquitous in coastal sediments.
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