干旱区生态环境知识资源中心(Arid): Diverse Viruses Carrying Genes for Microbial Extremotolerance in the Atacama Desert Hyperarid Soil

Arid

DOI	10.1128/mSystems.00385-21
	Diverse Viruses Carrying Genes for Microbial Extremotolerance in the Atacama Desert Hyperarid Soil
	Hwang, Yunha; Rahlff, Janina; Schulze-Makuch, Dirk; Schloter, Michael; Probst, Alexander J.
通讯作者	Hwang, YH (corresponding author), Harvard Univ, Dept Organism & Evolutionary Biol, Cambridge, MA 02138 USA. ; Hwang, YH ; Probst, AJ (corresponding author), Univ Duisburg Essen, Dept Chem, Grp Aquat Microbial Ecol Environm Microbiol & Bio, Essen, Germany. ; Hwang, YH (corresponding author), Tech Univ Berlin, cCtr Astron & Astrophys, Berlin, Germany.
来源期刊	MSYSTEMS
ISSN	2379-5077
出版年	2021
卷号	6 期号:3
英文摘要	Viruses play an essential role in shaping microbial community structures and serve as reservoirs for genetic diversity in many ecosystems. In hyperarid desert environments, where life itself becomes scarce and loses diversity, the interactions between viruses and host populations have remained elusive. Here, we resolved host-virus interactions in the soil metagenomes of the Atacama Desert hyperarid core, one of the harshest terrestrial environments on Earth. We show evidence of diverse viruses infecting a wide range of hosts found in sites up to 205 km apart. Viral genomes carried putative extremotolerance features (i.e., spore formation proteins) and auxiliary meta-bolic genes, indicating that viruses could mediate the spread of microbial resilience against environmental stress across the desert. We propose a mutualistic model of host-virus interactions in the hyperarid core where viruses seek protection in microbial cells as lysogens or pseudolysogens, while viral extremotolerance genes aid survival of their hosts. Our results suggest that the host-virus interactions in the Atacama Desert soils are dynamic and complex, shaping uniquely adapted microbiomes in this highly selec-tive and hostile environment. IMPORTANCE Deserts are one of the largest and rapidly expanding terrestrial ecosys-tems characterized by low biodiversity and biomass. The hyperarid core of the Atacama Desert, previously thought to be devoid of life, is one of the harshest envi-ronments, supporting only scant biomass of highly adapted microbes. While there is growing evidence that viruses play essential roles in shaping the diversity and struc-ture of nearly every ecosystem, very little is known about the role of viruses in de-sert soils, especially where viral contact with viable hosts is significantly reduced. Our results demonstrate that diverse viruses are widely dispersed across the desert, potentially spreading key stress resilience and metabolic genes to ensure host survival. The desertification accelerated by climate change expands both the ecosystem cover and the ecological significance of the desert virome. This study sheds light on the com-plex virus-host interplay that shapes the unique microbiome in desert soils.
英文关键词	auxiliary metabolic genes viromics metagenomics viral dispersal extremophiles virus-host interactions
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000709919700002
WOS关键词	MARINE VIRUSES ; PHOTOSYSTEM-I ; VIRAL LYSIS ; BACTERIA ; ALIGNMENT ; GENOMES ; PROTEIN ; PHAGE ; BACTERIOPHAGES ; ORDINATION
WOS类目	Microbiology
WOS研究方向	Microbiology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368704
作者单位	[Hwang, Yunha] Harvard Univ, Dept Organism & Evolutionary Biol, Cambridge, MA 02138 USA; [Hwang, Yunha; Rahlff, Janina; Probst, Alexander J.] Univ Duisburg Essen, Dept Chem, Grp Aquat Microbial Ecol Environm Microbiol & Bio, Essen, Germany; [Hwang, Yunha; Schulze-Makuch, Dirk] Tech Univ Berlin, cCtr Astron & Astrophys, Berlin, Germany; [Schulze-Makuch, Dirk] German Res Ctr Geosci, Sect Geomicrobiol, Potsdam, Germany; [Schulze-Makuch, Dirk] Leibniz Inst Freshwater Ecol & Inland Fisheries, Dept Expt Limnol, Stechlin, Germany; [Schloter, Michael] Helmholtz Zentrum Munchen, Res Unit Comparat Microbiome Anal, German Res Ctr Environm Hlth, Oberschleissheim, Germany
推荐引用方式 GB/T 7714	Hwang, Yunha,Rahlff, Janina,Schulze-Makuch, Dirk,et al. Diverse Viruses Carrying Genes for Microbial Extremotolerance in the Atacama Desert Hyperarid Soil[J],2021,6(3).
APA	Hwang, Yunha,Rahlff, Janina,Schulze-Makuch, Dirk,Schloter, Michael,&Probst, Alexander J..(2021).Diverse Viruses Carrying Genes for Microbial Extremotolerance in the Atacama Desert Hyperarid Soil.MSYSTEMS,6(3).
MLA	Hwang, Yunha,et al."Diverse Viruses Carrying Genes for Microbial Extremotolerance in the Atacama Desert Hyperarid Soil".MSYSTEMS 6.3(2021).