干旱区生态环境知识资源中心(Arid): Cyanobacteria in Hypolithic Horizons of Soils in the Larsemann Hills Oasis, East Antarctica

Arid

DOI	10.1134/S1064229323600859
	Cyanobacteria in Hypolithic Horizons of Soils in the Larsemann Hills Oasis, East Antarctica
	Velichko, N. V.; Rabochaya, D. E.; Dolgikh, A. V.; Mergelov, N. S.
通讯作者	Velichko, NV
来源期刊	EURASIAN SOIL SCIENCE
ISSN	1064-2293
EISSN	1556-195X
出版年	2023
卷号	56 期号:8 页码:1067-1082
英文摘要	The research is devoted to the analysis of biodiversity of Antarctic cyanobacteria in hypolithic organic-accumulative horizons of soils in the Larsemann Hills oasis. Studies of fouling glasses by the methods of light and confocal microscopy, as well as by fluorescent in situ hybridization, indicate that filamentous forms predominate among cyanobacteria in the upper layers of Antarctic hypolithic microbial communities. Strains of the genera Nostoc, Halotia, Leptolyngbya, Plectolyngbya, and Phormidesmis, as well as some new and previously undescribed cyanobacteria, were isolated from corresponding soil samples to clarify their taxonomic status. As a result, a unique collection of Antarctic cyanobacteria isolated from soils was obtained for the first time. The strains were described according to the modern polyphasic taxonomy methods based on an integrated assessment of morphological and molecular-genetic features. Phylogenetic analysis of primary 16S rRNA sequences and peculiarities of secondary structures of internal transcribed spacers enabled us to identify new taxa of potentially endemic cyanobacteria among the strains studied. The high level of similarity between the 16S rRNA gene sequences of soil strains and those previously found in benthic mats of water bodies in the Larsemann Hills confirmed the ability of cyanobacteria to expand beyond different ecological niches and to adapt to contrasting environmental conditions.
英文关键词	biofilms fouling glasses FISH laboratory cultures 16S rRNA 16S-23S ITS secondary structures endemism
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:001052822900007
WOS关键词	MICROBIAL COMMUNITIES ; SECONDARY STRUCTURE ; ONLINE RESOURCE ; VICTORIA LAND ; DRY VALLEYS ; DIVERSITY ; BIODIVERSITY ; PROBEBASE ; NORTHERN ; ENDEMISM
WOS类目	Soil Science
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/396314
推荐引用方式 GB/T 7714	Velichko, N. V.,Rabochaya, D. E.,Dolgikh, A. V.,et al. Cyanobacteria in Hypolithic Horizons of Soils in the Larsemann Hills Oasis, East Antarctica[J],2023,56(8):1067-1082.
APA	Velichko, N. V.,Rabochaya, D. E.,Dolgikh, A. V.,&Mergelov, N. S..(2023).Cyanobacteria in Hypolithic Horizons of Soils in the Larsemann Hills Oasis, East Antarctica.EURASIAN SOIL SCIENCE,56(8),1067-1082.
MLA	Velichko, N. V.,et al."Cyanobacteria in Hypolithic Horizons of Soils in the Larsemann Hills Oasis, East Antarctica".EURASIAN SOIL SCIENCE 56.8(2023):1067-1082.