Biocrust adaptations to microhabitat alter bacterial communities in a semiarid ecosystem
文献类型：期刊论文
| 作者 | Wang, Yanfeng1,4,5; Xiao, Bo1,3,5,6; Wang, Wanfu1,4; Revillini, Daniel2; Delgado-Baquerizo, Manuel2 |
| 刊名 | PLANT AND SOIL
 |
| 出版日期 | 2023-08-05 |
| 页码 | 15 |
| 关键词 | Biological soil crust Microbial community Bacterial relative abundance and diversity High-throughput sequencing Structural equation modeling Dryland |
| ISSN号 | 0032-079X |
| DOI | 10.1007/s11104-023-06184-3 |
| 通讯作者 | Xiao, Bo(xiaobo@cau.edu.cn) |
| 英文摘要 | AimsBiocrusts, the living skin of dryland ecosystems, contain diverse soil microorganisms that are essential to biocrust formation and the maintenance of multiple ecological functions including nitrogen fixation, carbon sequestration, soil stability, and rainfall redistribution. We know that biocrusts are important modulators of the soil microbiomes, however, much less is known about how local conditions influence biocrust adaptation and subsequently alter the soil microbiomes.MethodsTo understand the effects of microhabitat on bacterial communities via changes in biocrust traits, we collected biocrusts and analyzed soil microbiomes from eight representative microhabitats present in a semiarid ecosystem from the Chinese Northern Loess Plateau. These microhabitats were located a) outside plant canopy on level land, on shady gentle slope, and sunny gentle slope; b) under plant canopy on level land, on shady gentle, and sunny gentle slope; and c) outside plant canopy on shady and sunny steep slope, respectively. We then used structural equation modeling to investigate the relative contribution of microhabitat factors on important bacterial community metrics through quantifying the changes in biocrust traits.ResultsObserved microhabitat conditions significantly (P & LE; 0.033) altered the traits of biocrusts (e.g., thickness, biomass, and chlorophyll content), which were associated with significant changes in the soil bacterial community. For example, the bacterial richness in biocrusts developing under plant canopy, on shady slopes, and on gentle slopes was 20.1%, 19.9%, and 15.4% higher than that of the biocrusts developing outside plant canopy, on sunny slopes, and on steep slopes, respectively. We further showed that microhabitat conditions significantly impacted the network structure of bacterial communities under biocrusts, and structural equation modeling revealed that microhabitat metrics had strong indirect effects on network connectivity through changing biocrust traits.ConclusionsOur findings suggest that microhabitat factors can strongly influence soil bacterial communities via the changes in locally-adapted biocrust traits and soil properties. This knowledge is critical to understand the impacts of changing environments on biocrusts and associated soil bacterial communities, particularly as climate change progresses. |
| WOS关键词 | BIOLOGICAL SOIL CRUSTS ; HILLY LOESS PLATEAU ; FUNCTIONAL DIVERSITY ; MICROBIOTIC CRUSTS ; SLOPE GRADIENT ; NEGEV-DESERT ; ARID-LANDS ; SAND-DUNE ; DISTURBANCE ; ABUNDANCE |
| 资助项目 | National Natural Science Foundation of China[42077010] ; Light of West China Program of the Chinese Academy of Sciences[2019] ; Open Fund for Key Laboratory of Land Degradation and Ecological Restoration in Northwestern China of Ningxia University[LDER2022Z02] |
| WOS研究方向 | Agriculture ; Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:001042791700002 |
| 出版者 | SPRINGER |
| 资助机构 | National Natural Science Foundation of China ; Light of West China Program of the Chinese Academy of Sciences ; Open Fund for Key Laboratory of Land Degradation and Ecological Restoration in Northwestern China of Ningxia University |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/196261]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Xiao, Bo |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.CSIC, Inst Recursos Nat & Agrobiol Sevilla IRNAS, Lab Biodivers & Funcionamiento Ecosistem, Seville, Spain 3.Ningxia Univ, Breeding Base State Key Lab Land Degradat & Ecol R, Key Lab Restorat & Reconstruct Degraded Ecosyst No, Minist Educ, Yinchuan 750021, Peoples R China 4.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Desert & Desertificat, Lanzhou 730000, Peoples R China 5.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess Pl, Yangling 712100, Peoples R China 6.China Agr Univ, Coll Land Sci & Technol, Key Lab Arable Land Conservat North China, Minist Agr & Rural Affairs, Beijing 100193, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Yanfeng,Xiao, Bo,Wang, Wanfu,et al. Biocrust adaptations to microhabitat alter bacterial communities in a semiarid ecosystem[J]. PLANT AND SOIL,2023:15. |
| APA | Wang, Yanfeng,Xiao, Bo,Wang, Wanfu,Revillini, Daniel,&Delgado-Baquerizo, Manuel.(2023).Biocrust adaptations to microhabitat alter bacterial communities in a semiarid ecosystem.PLANT AND SOIL,15. |
| MLA | Wang, Yanfeng,et al."Biocrust adaptations to microhabitat alter bacterial communities in a semiarid ecosystem".PLANT AND SOIL (2023):15. |
入库方式： OAI收割
来源：地理科学与资源研究所
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