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Bacterial diversity and community along the succession of biological soil crusts in the Gurbantunggut Desert, Northern China
Zhang, BC (Zhang, Bingchang)1; Kong, WD (Kong, Weidong)2; Wu, N (Wu, Nan)1; Zhang, YM (Zhang, Yuanming)1; Zhang, YM
Source PublicationJOURNAL OF BASIC MICROBIOLOGY
2016
Volume56Issue:6Pages:670-679
DOI10.1002/jobm.201500751
AbstractBiological soil crusts (BSCs) are common and play critical roles in semi-arid and arid ecosystems. Bacteria, as an important community in BSCs, play critical roles in biochemical processes. However, how bacterial diversity and community change in different successional stages of BSCs is still unknown. We used 454 pyrosequencing of 16S rRNA to investigate the bacterial composition and community, and the relationships between bacterial composition and environmental factors were also explored. In different successional stages of BSCs, the number of bacteria operational taxonomic units (OTUs) detected in each sample ranged from 2572 to 3157. Proteobacteria, Cyanobacteria, Bacteroidetes were dominant in BSCs, followed by Firmicutes, Acidobacteria, and Actinobacteria. At the successional stages of BSCs, bacterial communities, OTU composition and their relative abundance notably differentiated, and Cyanobacteria, especially Microcoleus vaginatus, dominated algal crust and lichen crust, and were the main C-fixing bacteria in BSCs. Proteobacteria and Bacteroidetes increased with the development of BSCs. OTUs related to Planomicrobium Chinese, Desulfobulbus sp., Desulfomicrobium sp., Arthrobacter sp., and Ahhaerbacter sp. showed higher relative abundance in bare sand than other successional stages of BSCs, while relative abundance of Sphingomonas sp. Niastella sp., Pedobacter, Candidatus solobacter, and Streptophyta increased with the development of BSCs. In successional stages of BSCs, bacterial OTUs composition demonstrated strong correlations with soil nutrients, soil salts, and soil enzymes. Additionally, variation of bacterial composition led to different ecological function. In bare sand, some species were related with mineral metabolism or promoting plant growth, and in algal crust and lichen crust, C-fixing bacteria increased and accumulated C to the desert soil. In later developed stage of BSCs, bacteria related with decomposition of organic matter, such as Sphingomonas sp. Niastella sp., Pedobacter, and Candidatus solobacter increased. Therefore, bacterial community composition and their key ecological roles shifted to the development of BSCs.
Subject Area普通生物学
WOS IDWOS:000378428500009
Language英语
Indexed BySCI
KeywordMicrobial Biomass Colorado Plateau Extracellular Enzymes Distribution Patterns Spatial-distribution Northwestern China Chihuahuan Desert Forest Soil Sp Nov. Cyanobacteria
Cooperation Status国内
Department生态
SubtypeArticle
Citation statistics
Cited Times:29[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/7684
Collection图书馆
Corresponding AuthorZhang, YM
Affiliation1.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Key Lab Biogeog & Bioresources Arid Land, 818 South Beijing Rd, Urumqi 830011, Xinjiang, Peoples R China
2.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol & Biodivers, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Zhang, BC ,Kong, WD ,Wu, N ,et al. Bacterial diversity and community along the succession of biological soil crusts in the Gurbantunggut Desert, Northern China[J]. JOURNAL OF BASIC MICROBIOLOGY,2016,56(6):670-679.
APA Zhang, BC ,Kong, WD ,Wu, N ,Zhang, YM ,&Zhang, YM.(2016).Bacterial diversity and community along the succession of biological soil crusts in the Gurbantunggut Desert, Northern China.JOURNAL OF BASIC MICROBIOLOGY,56(6),670-679.
MLA Zhang, BC ,et al."Bacterial diversity and community along the succession of biological soil crusts in the Gurbantunggut Desert, Northern China".JOURNAL OF BASIC MICROBIOLOGY 56.6(2016):670-679.
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