Genomic and transcriptomic dissection of Theionarchaea in marine ecosystem
Genomic and transcriptomic dissection of Theionarchaea in marine ecosystem作者机构:Archaeal Biology CenterShenzhen Key Laboratory of Marine Microbiome EngineeringInstitute for Advanced StudyShenzhen UniversityShenzhen 518060China SZU-HKUST Joint PhD Program in Marine Environmental ScienceShenzhen UniversityShenzhen 518060China
出 版 物:《Science China(Life Sciences)》 (中国科学(生命科学英文版))
年 卷 期:2022年第65卷第6期
页 面:1222-1234页
核心收录:
学科分类:0710[理学-生物学] 07[理学] 071007[理学-遗传学]
基 金:supported by the National Natural Science Foundation of China(91851105,31970105,31600093,31700430 91951102) the Innovation Team Project of Universities in Guangdong Province(2020KCXTD023) the Shenzhen Science and Technology Program(JCYJ20200109105010363,JCYJ20180305163524811 and JCYJ20190808152403587)
主 题:Theionarchaea metagenome metatranscriptome metabolic potentials ecological roles
摘 要:Theionarchaea is a recently described archaeal class within the *** it is widely distributed in sediment ecosystems,little is known about its metabolic potential and ecological ***,we used metagenomics and metatranscriptomics to characterize 12 theionarchaeal metagenome-assembled genomes,which were further divided into two subgroups,from coastal mangrove sediments of China and seawater columns of the Yap *** analysis revealed that apart from the canonical sulfhydrogenase,Theionarchaea harbor genes encoding heliorhodopsin,group 4[NiFe]-hydrogenase,and flagellin,in which genes for heliorhodopsin and group 4[NiFe]-hydrogenase were transcribed in mangrove ***,the theionarchaeal substrate spectrum may be broader than previously reported as revealed by metagenomics and metatranscriptomics,and the potential carbon substrates include detrital proteins,hemicellulose,ethanol,and CO_(2).The genes for organic substrate metabolism(mainly detrital protein and amino acid metabolism genes)have relatively higher transcripts in the top sediment layers in mangrove *** addition,co-occurrence analysis suggested that the degradation of these organic compounds by Theionarchaea might be processed in syntrophy with fermenters(e.g.,Chloroflexi)and ***,these observations expand the current knowledge of the metabolic potential of Theionarchaea,and shed light on the metabolic strategies and roles of these archaea in the marine ecosystems.