干旱区生态环境知识资源中心(Arid): Cyanobacterial persistence and influence on microbial community dynamics over 15 years in induced biocrusts

Arid

DOI	10.1111/1462-2920.15853
	Cyanobacterial persistence and influence on microbial community dynamics over 15 years in induced biocrusts
	Lan, Shubin; Wu, Li; Adessi, Alessandra; Hu, Chunxiang
通讯作者	Lan, SB ; Hu, CX (corresponding author), Chinese Acad Sci, Inst Hydrobiol, Key Lab Algal Biol, Wuhan 430072, Peoples R China.
来源期刊	ENVIRONMENTAL MICROBIOLOGY
ISSN	1462-2912
EISSN	1462-2920
出版年	2022
英文摘要	Biocrusts provide numerous ecological functions in drylands. Recovering biocrusts via cyanobacterial inoculation recently gathered interest for ecological restoration, yet it still lacks long-term experiments to unravel biocrust community dynamics. To examine how cyanobacterial inoculants influenced local microbial community and biocrust development, we observed a 2 km(2) (Qubqi Desert, China) inoculation experiment after 10 and 15 years, following biocrust formation. Our results revealed that biocrust development was in line with ecological regime shift, providing evidence for biocrust community succession, from cyanobacteria- to moss-dominated types. Associated with biocrust development, microbial communities differed significantly with less specialists compared to shifting sands. Cyanobacterial community analysis showed that Microcoleus vaginatus and Scytonema javanicum are an ideal inoculating model, as they were still dominating the community after 15 years since inoculation, while other nitrogen-fixing cyanobacteria occurred profusely with biocrust development. Biocrust community composition combined with thickness, Chl-a and exopolysaccharide measurements revealed the large variation of cyanobacterial ecological functions along biocrust development, suggesting a main function shift: from carbon fixation associated with exopolysaccharide secretion in bare sandy soils to nitrogen fixation in developed biocrusts. This large-scale field study verifies that cyanobacterial inoculation accelerates biocrust development and forwards succession, shaping the biocrust community composition over a long time.
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000721786500001
WOS关键词	BIOLOGICAL SOIL CRUSTS ; ENVIRONMENTAL-FACTORS ; COLORADO PLATEAU ; REGIME SHIFTS ; ALGAL CRUSTS ; DESERT ; DIVERSITY ; DESERTIFICATION ; BACTERIAL ; ECOSYSTEM
WOS类目	Microbiology
WOS研究方向	Microbiology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/374618
作者单位	[Lan, Shubin; Hu, Chunxiang] Chinese Acad Sci, Inst Hydrobiol, Key Lab Algal Biol, Wuhan 430072, Peoples R China; [Wu, Li] Wuhan Univ Technol, Sch Resources & Environm Engn, Wuhan 430070, Peoples R China; [Adessi, Alessandra] Univ Florence, Dept Agr Food Environm & Forestry, I-50144 Florence, Italy
推荐引用方式 GB/T 7714	Lan, Shubin,Wu, Li,Adessi, Alessandra,et al. Cyanobacterial persistence and influence on microbial community dynamics over 15 years in induced biocrusts[J],2022.
APA	Lan, Shubin,Wu, Li,Adessi, Alessandra,&Hu, Chunxiang.(2022).Cyanobacterial persistence and influence on microbial community dynamics over 15 years in induced biocrusts.ENVIRONMENTAL MICROBIOLOGY.
MLA	Lan, Shubin,et al."Cyanobacterial persistence and influence on microbial community dynamics over 15 years in induced biocrusts".ENVIRONMENTAL MICROBIOLOGY (2022).