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题名: Differentiation of the characteristics of excreted extracellular polysaccharides reveals the heterogeneous primary succession of induced biological soil crusts
作者: Colica, Giovanni1; Li, Hua2, 3; Rossi, Federico1; De Philippis, Roberto1, 4; Liu, Yongding2
关键词: Exopolysaccharidic matrix ; Monosaccharidic composition ; Macromolecular characteristics ; Molecular weight ; Phototrophic microbial community ; Heterotrophic microbial community
刊名: JOURNAL OF APPLIED PHYCOLOGY
发表日期: 2015-10-01
DOI: 10.1007/s10811-015-0532-6
卷: 27, 期:5, 页:1935-1944
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Biotechnology & Applied Microbiology ; Marine & Freshwater Biology
研究领域[WOS]: Biotechnology & Applied Microbiology ; Marine & Freshwater Biology
英文摘要: In this study, the chemical composition and the macromolecular features of the extracellular polysaccharidic (EPS) matrix of induced biological soil crusts (IBSCs) of different age, collected in the hyper-arid plateau of Hobq desert, Inner Mongolia, China, were investigated. No statistically significant correlation between the amount of extracellular carbohydrates (i.e., monosaccharides, oligosaccharides, and polysaccharides) and the age of IBSCs was found. On the other hand, the relative abundance of uronic acid in the EPSs increased with the maturation of the crusts. In the EPSs of the investigated samples, glucose, mannose, galactose, and uronic acids were the sugars showing the widest variations in their relative abundance, explaining much of the variance of the data. Results also showed higher relative contents of EPSs with high MW in the oldest IBSCs. It is possible to conclude that the characteristics of the EPS of the matrix of the investigated IBSCs cannot only be put in relation with the age of the crusts and the activity of phototrophic microorganisms, but most properly, it has to be taken into account the biotic interactions ongoing between EPS producers and consumers.
关键词[WOS]: CYANOBACTERIAL EXOPOLYSACCHARIDES ; ENVIRONMENTAL-FACTORS ; ECOSYSTEM ; ACIDS
语种: 英语
WOS记录号: WOS:000361891600021
ISSN号: 0921-8971
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/27267
Appears in Collections:水环境工程研究中心_期刊论文

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作者单位: 1.Univ Florence, Dept Agrifood Prod & Environm Sci, I-50144 Florence, Italy
2.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
3.Grad Univ Chinese Acad Sci, Beijing 100039, Peoples R China
4.Natl Res Council CNR, Inst Ecosyst Study ISE, I-50019 Sesto Fiorentino, FI, Italy
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