干旱区生态环境知识资源中心(Arid): Ecological and Metabolic Thresholds in the Bacterial, Protist, and Fungal Microbiome of Ephemeral Saline Lakes (Monegros Desert, Spain)

Arid

DOI	10.1007/s00248-021-01732-9
	Ecological and Metabolic Thresholds in the Bacterial, Protist, and Fungal Microbiome of Ephemeral Saline Lakes (Monegros Desert, Spain)
	Menendez-Serra, Mateu; Triado-Margarit, Xavier; Casamayor, Emilio O.
通讯作者	Casamayor, EO (corresponding author), CSIC, Integrat Freshwater Ecol Grp, Ctr Estudios Avanzados Blanes, Acces Cala St Francesc 14, Blanes 17300, Spain.
来源期刊	MICROBIAL ECOLOGY
ISSN	0095-3628
EISSN	1432-184X
出版年	2021
英文摘要	We studied the 16S and 18S rRNA genes of the bacterial, protist, and fungal microbiomes of 131 samples collected in 14 ephemeral small inland lakes located in the endorheic area of the Monegros Desert (NE Spain). The sampling covered different temporal flooding/desiccation cycles that created natural salinity gradients between 0.1% (w/v) and salt saturation. We aimed to test the hypothesis of a lack of competitive advantage for microorganisms using the salt-in strategy in highly fluctuating hypersaline environments where temperature and salinity transitions widely vary within short time periods, as in ephemeral inland lakes. Overall, 5653 bacterial zOTUs and 2658 eukaryal zOTUs were detected heterogeneously distributed with significant variations on taxonomy and general energy-yielding metabolisms and trophic strategies along the gradient. We observed a more diverse bacterial assembly than initially expected at extreme salinities and a lack of dominance of a few salt-in organisms. Microbial thresholds were unveiled for these highly fluctuating hypersaline environments with high selective pressures. We conclude that the extremely high dynamism observed in the ephemeral lakes of Monegros may have given a competitive advantage for more versatile (salt-out) organisms compared to those better adapted to stable high salinities usually more common in solar salterns. Ephemeral inland saline lakes offered a well-suited natural framework for highly detailed evolutionary and ecological studies.
英文关键词	Bacteria Eukaryotes Inland saline lakes Community ecology Halophiles 16S rRNA gene 18S rRNA gene Salt gradient Monegros desert
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000629507100001
WOS类目	Ecology ; Marine & Freshwater Biology ; Microbiology
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Microbiology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/352394
作者单位	[Menendez-Serra, Mateu; Triado-Margarit, Xavier; Casamayor, Emilio O.] CSIC, Integrat Freshwater Ecol Grp, Ctr Estudios Avanzados Blanes, Acces Cala St Francesc 14, Blanes 17300, Spain
推荐引用方式 GB/T 7714	Menendez-Serra, Mateu,Triado-Margarit, Xavier,Casamayor, Emilio O.. Ecological and Metabolic Thresholds in the Bacterial, Protist, and Fungal Microbiome of Ephemeral Saline Lakes (Monegros Desert, Spain)[J],2021.
APA	Menendez-Serra, Mateu,Triado-Margarit, Xavier,&Casamayor, Emilio O..(2021).Ecological and Metabolic Thresholds in the Bacterial, Protist, and Fungal Microbiome of Ephemeral Saline Lakes (Monegros Desert, Spain).MICROBIAL ECOLOGY.
MLA	Menendez-Serra, Mateu,et al."Ecological and Metabolic Thresholds in the Bacterial, Protist, and Fungal Microbiome of Ephemeral Saline Lakes (Monegros Desert, Spain)".MICROBIAL ECOLOGY (2021).