干旱区生态环境知识资源中心(Arid): Connectivity of Edaphic and Endolithic Microbial Niches in Cold Mountain Desert of Eastern Pamir (Tajikistan)

Arid

DOI	10.3390/biology10040314
	Connectivity of Edaphic and Endolithic Microbial Niches in Cold Mountain Desert of Eastern Pamir (Tajikistan)
	Khomutovska, Nataliia; de los Rios, Asuncion; Syczewski, Marcin D.; Jasser, Iwona
通讯作者	Khomutovska, N (corresponding author), Univ Warsaw, Inst Environm Biol, Fac Biol, Biol & Chem Res Ctr, Zwirki & Wigury 101, PL-02089 Warsaw, Poland.
来源期刊	BIOLOGY-BASEL
EISSN	2079-7737
出版年	2021
卷号	10 期号:4
英文摘要	Simple Summary Microbial communities play a significant role in the functioning of the ecosystem in the cold mountain desert of Eastern Pamir, a region that is characterized by extreme environments with limited nutrient and water availability and sparse vegetation. This study aims to investigate the taxonomic composition and structure of bacterial endolithic (rock matrix colonizing) assemblages and soil-inhabiting communities that occur in the Eastern Pamir Mountains, and to compare the composition and structure of both types of communities looking for general patterns and trying to identify the connectivity between these types of microbial assemblages. The taxonomic composition of Pamirian endolithic communities and soil-inhabiting microbial consortia (biocrust communities) exhibit similarities to communities from cold and hot deserts, but they also harbor taxa, which are possibly novel species or which, so far, lack reference sequences in the databases. The endolithic communities occurring in three subregions of Eastern Pamir are characterized by high heterogeneity and cannot be grouped according to the subregion, while the distribution of Cyanobacteria in the soil crusts demonstrates the similarities between the communities within the subregion reflecting regional differences. We also found connectivity between both habitats concerning the occurrence the same taxa (e.g., Cyanobacteria). Microbial communities found in arid environments are commonly represented by biological soil crusts (BSCs) and endolithic assemblages. There is still limited knowledge concerning endoliths and BSCs occurring in the cold mountain desert of Pamir. The aim of the study was to investigate the composition and structure of endolithic bacterial communities in comparison to surrounding BSCs in three subregions of the Eastern Pamir (Tajikistan). The endolithic and BSC communities were studied using culture-independent and culture-dependent techniques. The structure of the endolithic bacterial communities can be characterized as Actinobacteria-Proteobacteria-Bacteroidetes-Chloroflexi-Cyanobacteria, while the BSCs' can be described as Proteobacteria-Actinobacteria-Bacteroidetes-Cyanobacteria assemblages with low representation of other bacteria. The endolithic cyanobacterial communities were characterized by the high percentage of Chroococcidiopsaceae, Nodosilineaceae, Nostocaceae and Thermosynechococcaceae, while in the BSCs were dominated by Nodosilineaceae, Phormidiaceae and Nostocaceae. The analysis of 16S rRNA genes of the cyanobacterial cultures revealed the presence of possibly novel species of Chroococcidiopsis, Gloeocapsopsis and Wilmottia. Despite the niches' specificity, which is related to the influence of microenvironment factors on the composition and structure of endolithic communities, our results illustrate the interrelation between the endoliths and the surrounding BSCs in some regions. The structure of cyanobacterial communities from BSC was the only one to demonstrate some subregional differences.
英文关键词	endoliths cyanobacteria biological soil crusts (BSCs) microbial community Eastern Pamir cold mountain desert 16S rRNA gene
类型	Article
语种	英语
开放获取类型	Green Published, Green Submitted, gold
收录类别	SCI-E
WOS记录号	WOS:000642737600001
WOS类目	Biology
WOS研究方向	Life Sciences & Biomedicine - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349710
作者单位	[Khomutovska, Nataliia; Jasser, Iwona] Univ Warsaw, Inst Environm Biol, Fac Biol, Biol & Chem Res Ctr, Zwirki & Wigury 101, PL-02089 Warsaw, Poland; [de los Rios, Asuncion] CSIC, Natl Museum Nat Sci, Dept Biogeochem & Microbial Ecol, Madrid 28006, Spain; [Syczewski, Marcin D.] Univ Warsaw, Fac Geol, Inst Geochem Mineral & Petrol, PL-02089 Warsaw, Poland
推荐引用方式 GB/T 7714	Khomutovska, Nataliia,de los Rios, Asuncion,Syczewski, Marcin D.,et al. Connectivity of Edaphic and Endolithic Microbial Niches in Cold Mountain Desert of Eastern Pamir (Tajikistan)[J],2021,10(4).
APA	Khomutovska, Nataliia,de los Rios, Asuncion,Syczewski, Marcin D.,&Jasser, Iwona.(2021).Connectivity of Edaphic and Endolithic Microbial Niches in Cold Mountain Desert of Eastern Pamir (Tajikistan).BIOLOGY-BASEL,10(4).
MLA	Khomutovska, Nataliia,et al."Connectivity of Edaphic and Endolithic Microbial Niches in Cold Mountain Desert of Eastern Pamir (Tajikistan)".BIOLOGY-BASEL 10.4(2021).