气候变化领域集成服务门户(CCPortal): Linking genomic and physiological characteristics of psychrophilic Arthrobacter to metagenomic data to explain global environmental distribution

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DOI	10.1186/s40168-021-01084-z
	Linking genomic and physiological characteristics of psychrophilic Arthrobacter to metagenomic data to explain global environmental distribution
	Shen, Liang; Liu, Yongqin; Allen, Michelle A.; Xu, Baiqing; Wang, Ninglian; Williams, Timothy J.; Wang, Feng; Zhou, Yuguang; Liu, Qing; Cavicchioli, Ricardo
通讯作者	Liu, YQ (通讯作者)
发表日期	2021
ISSN	2049-2618
卷号	9 期号:1
英文摘要	Background: Microorganisms drive critical global biogeochemical cycles and dominate the biomass in Earth's expansive cold biosphere. Determining the genomic traits that enable psychrophiles to grow in cold environments informs about their physiology and adaptive responses. However, defining important genomic traits of psychrophiles has proven difficult, with the ability to extrapolate genomic knowledge to environmental relevance proving even more difficult. Results: Here we examined the bacterial genus Arthrobacter and, assisted by genome sequences of new Tibetan Plateau isolates, defined a new clade, Group C, that represents isolates from polar and alpine environments. Group C had a superior ability to grow at -1 degrees C and possessed genome G+C content, amino acid composition, predicted protein stability, and functional capacities (e.g., sulfur metabolism and mycothiol biosynthesis) that distinguished it from non-polar or alpine Group A Arthrobacter. Interrogation of nearly 1000 metagenomes identified an over-representation of Group C in Canadian permafrost communities from a simulated spring-thaw experiment, indicative of niche adaptation, and an under-representation of Group A in all polar and alpine samples, indicative of a general response to environmental temperature. Conclusion: The findings illustrate a capacity to define genomic markers of specific taxa that potentially have value for environmental monitoring of cold environments, including environmental change arising from anthropogenic impact. More broadly, the study illustrates the challenges involved in extrapolating from genomic and physiological data to an environmental setting.
关键词	CULTURABLE BACTERIA MICROBIAL ECOLOGY ICE SURVIVAL REVEALS DEGRADATION TEMPERATURE PERMAFROST MYCOTHIOL SEQUENCE
英文关键词	Genomics; Metagenomics; Psychrophiles; Polar environment; Alpine environment; Microbial adaptation
语种	英语
WOS研究方向	Microbiology
WOS类目	Microbiology
WOS记录号	WOS:000663032200002
来源期刊	MICROBIOME
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/260364
推荐引用方式 GB/T 7714	Shen, Liang,Liu, Yongqin,Allen, Michelle A.,et al. Linking genomic and physiological characteristics of psychrophilic Arthrobacter to metagenomic data to explain global environmental distribution[J]. 中国科学院青藏高原研究所,2021,9(1).
APA	Shen, Liang.,Liu, Yongqin.,Allen, Michelle A..,Xu, Baiqing.,Wang, Ninglian.,...&Cavicchioli, Ricardo.(2021).Linking genomic and physiological characteristics of psychrophilic Arthrobacter to metagenomic data to explain global environmental distribution.MICROBIOME,9(1).
MLA	Shen, Liang,et al."Linking genomic and physiological characteristics of psychrophilic Arthrobacter to metagenomic data to explain global environmental distribution".MICROBIOME 9.1(2021).