干旱区生态环境知识资源中心(Arid): Prevalence of trace gas-oxidizing soil bacteria increases with radial distance from Polloquere hot spring within a high-elevation Andean cold desert

Arid

DOI	10.1093/ismejo/wrae062
	Prevalence of trace gas-oxidizing soil bacteria increases with radial distance from Polloquere hot spring within a high-elevation Andean cold desert
	Garvin, Zachary K.; Abades, Sebastian R.; Trefault, Nicole; Alfaro, Fernando D.; Sipes, Katie; Lloyd, Karen G.; Onstott, Tullis C.
通讯作者	Garvin, ZK
来源期刊	ISME JOURNAL
ISSN	1751-7362
EISSN	1751-7370
出版年	2024
卷号	18 期号:1
英文摘要	High-elevation arid regions harbor microbial communities reliant on metabolic niches and flexibility to survive under biologically stressful conditions, including nutrient limitation that necessitates the utilization of atmospheric trace gases as electron donors. Geothermal springs present oases of microbial activity, diversity, and abundance by delivering water and substrates, including reduced gases. However, it is unknown whether these springs exhibit a gradient of effects, increasing their impact on trace gas-oxidizers in the surrounding soils. We assessed whether proximity to Polloquere, a high-altitude geothermal spring in an Andean salt flat, alters the diversity and metabolic structure of nearby soil bacterial populations compared to the surrounding cold desert. Recovered DNA and metagenomic analyses indicate that the spring represents an oasis for microbes in this challenging environment, supporting greater biomass with more diverse metabolic functions in proximal soils that declines sharply with radial distance from the spring. Despite the sharp decrease in biomass, potential rates of atmospheric hydrogen (H2) and carbon monoxide (CO) uptake increase away from the spring. Kinetic estimates suggest this activity is due to high-affinity trace gas consumption, likely as a survival strategy for energy/carbon acquisition. These results demonstrate that Polloquere regulates a gradient of diverse microbial communities and metabolisms, culminating in increased activity of trace gas-oxidizers as the influence of the spring yields to that of the regional salt flat environment. This suggests the spring holds local importance within the context of the broader salt flat and potentially represents a model ecosystem for other geothermal systems in high-altitude desert environments.
英文关键词	geomicrobiology microbial ecology trace gas metagenomics
类型	Article
语种	英语
开放获取类型	hybrid, Green Published
收录类别	SCI-E
WOS记录号	WOS:001222683400001
WOS关键词	ATMOSPHERIC CARBON-MONOXIDE ; HIGH-AFFINITY ; ENERGY-SOURCE ; SP NOV. ; HYDROGEN ; ATACAMA ; H-2 ; MICROORGANISMS ; ACIDOBACTERIA ; COMMUNITIES
WOS类目	Ecology ; Microbiology
WOS研究方向	Environmental Sciences & Ecology ; Microbiology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/404302
推荐引用方式 GB/T 7714	Garvin, Zachary K.,Abades, Sebastian R.,Trefault, Nicole,et al. Prevalence of trace gas-oxidizing soil bacteria increases with radial distance from Polloquere hot spring within a high-elevation Andean cold desert[J],2024,18(1).
APA	Garvin, Zachary K..,Abades, Sebastian R..,Trefault, Nicole.,Alfaro, Fernando D..,Sipes, Katie.,...&Onstott, Tullis C..(2024).Prevalence of trace gas-oxidizing soil bacteria increases with radial distance from Polloquere hot spring within a high-elevation Andean cold desert.ISME JOURNAL,18(1).
MLA	Garvin, Zachary K.,et al."Prevalence of trace gas-oxidizing soil bacteria increases with radial distance from Polloquere hot spring within a high-elevation Andean cold desert".ISME JOURNAL 18.1(2024).