干旱区生态环境知识资源中心(Arid): Distribution characteristics of lipids from salt sediments in Qaidam Basin and their astrobiological significance

Arid

DOI	10.1007/s11430-021-9812-2
	Distribution characteristics of lipids from salt sediments in Qaidam Basin and their astrobiological significance
	Cheng, Ziye; Xiao, Long; Wang, Hongmei; Huang, Ting
通讯作者	Xiao, L (corresponding author), China Univ Geosci, Planetary Sci Inst, State Key Lab Geol Proc & Mineral Resources, Wuhan 430074, Peoples R China.
来源期刊	SCIENCE CHINA-EARTH SCIENCES
ISSN	1674-7313
EISSN	1869-1897
出版年	2021-08
英文摘要	On Earth, salt environments are the most relevant analogues to Martian salt deposits with regard to the search for preserved biomolecules. In this study, we analyzed the distribution of lipids in salt samples from Dalangtan and Qarhan in the Qaidam Basin, which is the most important area to carry out analog research of Mars in China. Furthermore, we compared the lipids distribution results with that from other typical Martian analog sites such as the Atacama Desert. Salt samples in the Qaidam Basin are enriched with fatty acid compounds, including normal fatty acids, unsaturated fatty acids, branched fatty acids, and acyclic isoprene acids. In addtion, glycerol dialkyl glycerol tetraethers (GDGTs) and archaeol compounds were also detected in these salt samples. Compared with the hypersaline samples, the clay samples not only have higher abuandance of fatty acids, GDGTs and archaeol compounds, but also a more diversed lipids composition. Only a few lipids were detected in the pure-saline samples, such as archaeol compounds. These clues suggest that content of salt minerals is the major factor affecting the distribution of lipids. This study provides an analogy for detecting and evaluating the traces of life that may exist on Mars.
英文关键词	Salt sediments Lipids Astrobiology The Qaidam Basin Mars
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000691641000001
WOS关键词	TIBETAN PLATEAU ; FATTY-ACIDS ; MICROBIAL COMMUNITIES ; MOLECULAR BIOMARKERS ; MERIDIANI-PLANUM ; ARCHAEAL LIPIDS ; DALANGTAN PLAYA ; ORGANIC-MATTER ; MARS ; ATACAMA
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/364560
作者单位	[Cheng, Ziye] Guangdong Univ Finance & Econ, Sch Geog & Tourism, Guangzhou 510320, Peoples R China; [Xiao, Long] China Univ Geosci, Planetary Sci Inst, State Key Lab Geol Proc & Mineral Resources, Wuhan 430074, Peoples R China; [Wang, Hongmei] China Univ Geosci, State Key Lab Biogeol & Environm Geol, Wuhan 430074, Peoples R China; [Huang, Ting] Macau Univ Sci & Technol, State Key Lab Lunar & Planetary Sci, Macau 999078, Peoples R China
推荐引用方式 GB/T 7714	Cheng, Ziye,Xiao, Long,Wang, Hongmei,et al. Distribution characteristics of lipids from salt sediments in Qaidam Basin and their astrobiological significance[J],2021.
APA	Cheng, Ziye,Xiao, Long,Wang, Hongmei,&Huang, Ting.(2021).Distribution characteristics of lipids from salt sediments in Qaidam Basin and their astrobiological significance.SCIENCE CHINA-EARTH SCIENCES.
MLA	Cheng, Ziye,et al."Distribution characteristics of lipids from salt sediments in Qaidam Basin and their astrobiological significance".SCIENCE CHINA-EARTH SCIENCES (2021).