干旱区生态环境知识资源中心(Arid): Biological Soil Crusts from Different Soil Substrates Harbor Distinct Bacterial Groups with the Potential to Produce Exopolysaccharides and Lipopolysaccharides

Arid

DOI	10.1007/s00248-019-01415-6
	Biological Soil Crusts from Different Soil Substrates Harbor Distinct Bacterial Groups with the Potential to Produce Exopolysaccharides and Lipopolysaccharides
	Cania, Barbara 1; Vestergaard, Gisle 1,2; Kublik, Susanne 1; Koehne, John Maximilian 3; Fischer, Thomas 4; Albert, Andreas 5; Winkler, Barbro 5; Schloter, Michael 1,6; Schulz, Stefanie 1
通讯作者	Schulz, Stefanie
来源期刊	MICROBIAL ECOLOGY
ISSN	0095-3628
EISSN	1432-184X
出版年	2020
卷号	79 期号:2 页码:326-341
英文摘要	Biological soil crusts (biocrusts) play an important role in improving soil stability and resistance to erosion by promoting aggregation of soil particles. During initial development, biocrusts are dominated by bacteria. Some bacterial members of the biocrusts can contribute to the formation of soil aggregates by producing exopolysaccharides and lipopolysaccharides that act as glue for soil particles. However, little is known about the dynamics of soil glue producers during the initial development of biocrusts. We hypothesized that different types of initial biocrusts harbor distinct producers of adhesive polysaccharides. To investigate this, we performed a microcosm experiment, cultivating biocrusts on two soil substrates. High-throughput shotgun sequencing was used to obtain metagenomic information on microbiomes of bulk soils from the beginning of the experiment, and biocrusts sampled after 4 and 10 months of incubation. We discovered that the relative abundance of genes involved in the biosynthesis of exopolysaccharides and lipopolysaccharides increased in biocrusts compared with bulk soils. At the same time, communities of potential soil glue producers that were highly similar in bulk soils underwent differentiation once biocrusts started to develop. In the bulk soils, the investigated genes were harbored mainly by Betaproteobacteria, whereas in the biocrusts, the major potential producers of adhesive polysaccharides were, aside from Alphaproteobacteria, either Cyanobacteria or Chloroflexi and Acidobacteria. Overall, our results indicate that the potential to form exopolysaccharides and lipopolysaccharides is an important bacterial trait for initial biocrusts and is maintained despite the shifts in bacterial community composition during biocrust development.
英文关键词	Biological soil crusts Exopolysaccharides Lipopolysaccharides Microbiome Metagenomics
类型	Article
语种	英语
国家	Germany ; Denmark
开放获取类型	Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000514980800006
WOS关键词	POLYMERIC SUBSTANCES EPS ; CYANOBACTERIAL EXOPOLYSACCHARIDES ; MICROBIOTIC CRUSTS ; ORGANIC-MATTER ; CHAIN-LENGTH ; NEGEV-DESERT ; TRANSPORT ; BIOSYNTHESIS ; DIVERSITY ; PROTEIN
WOS类目	Ecology ; Marine & Freshwater Biology ; Microbiology
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Microbiology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/315166
作者单位	1.Helmholtz Zentrum Munchen Res Ctr Environm Hlth G, Res Unit Comparat Microbiome Anal, Ingolstadter Landstr 1, D-85764 Neuherberg, Germany; 2.Tech Univ Denmark, Dept Hlth Technol, Sect Bioinformat, DK-2800 Lyngby, Denmark; 3.UFZ Helmholtz Ctr Environm Res, Dept Soil Syst Sci, Theodor Lieser Str 4, D-06120 Halle, Germany; 4.Brandenburg Tech Univ Cottbus, Cent Analyt Lab, Konrad Wachsmann Allee 6, D-03046 Cottbus, Germany; 5.Helmholtz Zentrum Munchen Res Ctr Environm Hlth G, Res Unit Environm Simulat, Ingolstadter Landstr 1, D-85764 Neuherberg, Germany; 6.Tech Univ Munich, Chair Soil Sci, Emil Ramann Str 2, D-85354 Freising Weihenstephan, Germany
推荐引用方式 GB/T 7714	Cania, Barbara,Vestergaard, Gisle,Kublik, Susanne,et al. Biological Soil Crusts from Different Soil Substrates Harbor Distinct Bacterial Groups with the Potential to Produce Exopolysaccharides and Lipopolysaccharides[J],2020,79(2):326-341.
APA	Cania, Barbara.,Vestergaard, Gisle.,Kublik, Susanne.,Koehne, John Maximilian.,Fischer, Thomas.,...&Schulz, Stefanie.(2020).Biological Soil Crusts from Different Soil Substrates Harbor Distinct Bacterial Groups with the Potential to Produce Exopolysaccharides and Lipopolysaccharides.MICROBIAL ECOLOGY,79(2),326-341.
MLA	Cania, Barbara,et al."Biological Soil Crusts from Different Soil Substrates Harbor Distinct Bacterial Groups with the Potential to Produce Exopolysaccharides and Lipopolysaccharides".MICROBIAL ECOLOGY 79.2(2020):326-341.