干旱区生态环境知识资源中心(Arid): Beneficial Cyanosphere Heterotrophs Accelerate Establishment of Cyanobacterial Biocrust

Arid

DOI	10.1128/AEM.01236-21
	Beneficial Cyanosphere Heterotrophs Accelerate Establishment of Cyanobacterial Biocrust
	Nelson, Corey; Garcia-Pichel, Ferran
通讯作者	Garcia-Pichel, F (corresponding author), Arizona State Univ, Biodesign Inst, Ctr Fundamental & Appl Microbi, Tempe, AZ 85281 USA. ; Garcia-Pichel, F (corresponding author), Arizona State Univ, Sch Life Sci, Tempe, AZ 85281 USA.
来源期刊	APPLIED AND ENVIRONMENTAL MICROBIOLOGY
ISSN	0099-2240
EISSN	1098-5336
出版年	2021
卷号	87 期号:20
英文摘要	Biological soil crusts (biocrusts) are communities of microbes that inhabit the surface of and soils and provide essential services to dryland ecosystems. While resistant to extreme environmental conditions, biocrusts are susceptible to anthropogenic disturbances that can deprive ecosystems of these valuable services for decades. Until recently, culture-based efforts to produce inoculum for cyanobacterial biocrust restoration in the southwestern United States focused on producing and inoculating the most abundant primary producers and biocrust pioneers, Microcoleus vaginatus and members of the family Coleofasciculaceae (also called Microcoleus steenstrupii complex). The discovery that a unique microbial community characterized by diazotrophs, known as the cyanosphere, is intimately associated with M. vaginatus suggests a symbiotic division of labor in which nutrients are traded between phototrophs and heterotrophs. To probe the potential use of such cyanosphere members in the restoration of biocrusts, we performed coinoculations of soil substrates with cyanosphere constituents. This resulted in cyanobacterial growth that was more rapid than that seen for inoculations with the cyanobacterium alone. Additionally, we found that the mere addition of beneficial heterotrophs enhanced the formation of a cohesive biocrust without the need for additional phototrophic biomass within native soils that contain trace amounts of biocrust cyanobacteria. Our findings support the hitherto-unknown role of beneficial heterotrophic bacteria in the establishment and growth of biocrusts and allow us to make recommendations concerning biocrust restoration efforts based on the presence of remnant biocrust communities in disturbed areas. Future biocrust restoration efforts should consider cyanobacteria and their beneficial heterotrophic community as inoculants. IMPORTANCE The advancement of biocrust restoration methods for cyanobacterial biocrusts has been largely achieved through trial and error. Successes and failures could not always be traced back to particular factors. The investigation and application of foundational microbial interactions existing within biocrust communities constitute a crucial step toward informed and repeatable biocrust restoration methods.
英文关键词	biological soil crust cyanobacteria cyanosphere soil microbiology soil restoration biocrust
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000703558500018
WOS关键词	BIOLOGICAL SOIL CRUSTS ; COMMUNITY STRUCTURE ; COLORADO PLATEAU ; DESERT CRUSTS ; GREEN-ALGAE ; DIVERSITY ; RECOVERY ; DISTURBANCE ; PATTERNS ; LICHENS
WOS类目	Biotechnology & Applied Microbiology ; Microbiology
WOS研究方向	Biotechnology & Applied Microbiology ; Microbiology
来源机构	Arizona State University
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/362469
作者单位	[Nelson, Corey; Garcia-Pichel, Ferran] Arizona State Univ, Biodesign Inst, Ctr Fundamental & Appl Microbi, Tempe, AZ 85281 USA; [Nelson, Corey; Garcia-Pichel, Ferran] Arizona State Univ, Sch Life Sci, Tempe, AZ 85281 USA
推荐引用方式 GB/T 7714	Nelson, Corey,Garcia-Pichel, Ferran. Beneficial Cyanosphere Heterotrophs Accelerate Establishment of Cyanobacterial Biocrust[J]. Arizona State University,2021,87(20).
APA	Nelson, Corey,&Garcia-Pichel, Ferran.(2021).Beneficial Cyanosphere Heterotrophs Accelerate Establishment of Cyanobacterial Biocrust.APPLIED AND ENVIRONMENTAL MICROBIOLOGY,87(20).
MLA	Nelson, Corey,et al."Beneficial Cyanosphere Heterotrophs Accelerate Establishment of Cyanobacterial Biocrust".APPLIED AND ENVIRONMENTAL MICROBIOLOGY 87.20(2021).