Biogeographical patterns and mechanisms of microbial community assembly that underlie successional biocrusts across northern China

Abstract Biocrusts play critical eco-functions in many drylands, however it is challenging to explore their community assembly, particularly within patched successional types and across climate zones. Here, different successional biocrusts (alga, lichen, and moss-dominated biocrusts) were collected...

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Autores principales:	Yuanlong Li, Chunxiang Hu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Microbial ecology QR100-130
Acceso en línea:	https://doaj.org/article/17b893eb2b2d4b4ebf6c201139da0c2c
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spelling	oai:doaj.org-article:17b893eb2b2d4b4ebf6c201139da0c2c2021-12-02T14:06:53ZBiogeographical patterns and mechanisms of microbial community assembly that underlie successional biocrusts across northern China10.1038/s41522-021-00188-62055-5008https://doaj.org/article/17b893eb2b2d4b4ebf6c201139da0c2c2021-02-01T00:00:00Zhttps://doi.org/10.1038/s41522-021-00188-6https://doaj.org/toc/2055-5008Abstract Biocrusts play critical eco-functions in many drylands, however it is challenging to explore their community assembly, particularly within patched successional types and across climate zones. Here, different successional biocrusts (alga, lichen, and moss-dominated biocrusts) were collected across the northern China, and assembly of biocrust microbial communities was investigated by high-throughput sequencing combined with measurements of soil properties and microclimate environments. Bacterial and eukaryotic communities showed that the maximum and minimum community variation occurred across longitude and latitude, respectively. In the regions where all three stages of biocrusts were involved, the highest community difference existed between successional stages, and decreased with distance. The community assembly was generally driven by dispersal limitation, although neutral processes have controlled the eukaryotic community assembly in hyperarid areas. Along the succession, bacterial community had no obvious patterns, but eukaryotic community showed increasing homogeneity, with increased species sorting and decreased dispersal limitation for community assembly. Compared to early successional biocrusts, there were higher microbial mutual exclusions and more complex networks at later stages, with distinct topological features. Correlation analysis further indicated that the balance between deterministic and stochastic processes might be mediated by aridity, salinity, and total phosphorus, although the mediations were opposite for bacteria and eukaryotes.Yuanlong LiChunxiang HuNature PortfolioarticleMicrobial ecologyQR100-130ENnpj Biofilms and Microbiomes, Vol 7, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Microbial ecology QR100-130
spellingShingle	Microbial ecology QR100-130 Yuanlong Li Chunxiang Hu Biogeographical patterns and mechanisms of microbial community assembly that underlie successional biocrusts across northern China
description	Abstract Biocrusts play critical eco-functions in many drylands, however it is challenging to explore their community assembly, particularly within patched successional types and across climate zones. Here, different successional biocrusts (alga, lichen, and moss-dominated biocrusts) were collected across the northern China, and assembly of biocrust microbial communities was investigated by high-throughput sequencing combined with measurements of soil properties and microclimate environments. Bacterial and eukaryotic communities showed that the maximum and minimum community variation occurred across longitude and latitude, respectively. In the regions where all three stages of biocrusts were involved, the highest community difference existed between successional stages, and decreased with distance. The community assembly was generally driven by dispersal limitation, although neutral processes have controlled the eukaryotic community assembly in hyperarid areas. Along the succession, bacterial community had no obvious patterns, but eukaryotic community showed increasing homogeneity, with increased species sorting and decreased dispersal limitation for community assembly. Compared to early successional biocrusts, there were higher microbial mutual exclusions and more complex networks at later stages, with distinct topological features. Correlation analysis further indicated that the balance between deterministic and stochastic processes might be mediated by aridity, salinity, and total phosphorus, although the mediations were opposite for bacteria and eukaryotes.
format	article
author	Yuanlong Li Chunxiang Hu
author_facet	Yuanlong Li Chunxiang Hu
author_sort	Yuanlong Li
title	Biogeographical patterns and mechanisms of microbial community assembly that underlie successional biocrusts across northern China
title_short	Biogeographical patterns and mechanisms of microbial community assembly that underlie successional biocrusts across northern China
title_full	Biogeographical patterns and mechanisms of microbial community assembly that underlie successional biocrusts across northern China
title_fullStr	Biogeographical patterns and mechanisms of microbial community assembly that underlie successional biocrusts across northern China
title_full_unstemmed	Biogeographical patterns and mechanisms of microbial community assembly that underlie successional biocrusts across northern China
title_sort	biogeographical patterns and mechanisms of microbial community assembly that underlie successional biocrusts across northern china
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/17b893eb2b2d4b4ebf6c201139da0c2c
work_keys_str_mv	AT yuanlongli biogeographicalpatternsandmechanismsofmicrobialcommunityassemblythatunderliesuccessionalbiocrustsacrossnorthernchina AT chunxianghu biogeographicalpatternsandmechanismsofmicrobialcommunityassemblythatunderliesuccessionalbiocrustsacrossnorthernchina
_version_	1718391948087132160

Biogeographical patterns and mechanisms of microbial community assembly that underlie successional biocrusts across northern China

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