Linkages of microbial community structure and root exudates: Evidence from microbial nitrogen limitation in soils of crop families
文献类型：期刊论文
| 作者 | Gong, Xiangwei1; Feng, Yu2; Dang, Ke3; Jiang, Ying1; Qi, Hua1; Feng, Baili2,4 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2023-07-10 |
| 卷号 | 881页码:12 |
| 关键词 | Co-occurrence network Assembly process Root exudates Microbial nitrogen limitation Crop families |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2023.163536 |
| 通讯作者 | Gong, Xiangwei(gongxiangwei@syau.edu.cn) ; Feng, Baili(fengbaili@nwsuaf.edu.cn) |
| 英文摘要 | Rhizosphere microorganisms are critical for crop nutrient cycling and soil ecological functions in agroecosystem soils; however, there is limited information regarding the role of root exudates in determining soil microbial communities and functions in plant-soil systems, especially for microbial nutrient limitations. In the present study, rhizosphere soil samples were collected from the main food crop families, including maize, soybean, potato, and buckwheat, rep-resenting the cereals, Leguminosae, Solanaceae, and Polygonaceae families, in the northern Loess Plateau, China, to investigate soil microbial co-occurrences and assembly processes and the relationship between soil microbes and root exudates. The results showed that the crop families greatly regulated the soil microbial community composition and assembly, and all microorganisms of the four species were subjected to N limitation via the vector analysis. The topological properties of the soil microbial networks varied with the crop family, demonstrating that the ecological re-lationships of bacterial taxa are more complex than those of fungi. Stochastic processes were more important in stim-ulating assembly across the four crop families; the non-dominated process governed >60 % of the critical ecological turnover in community assembly, whereas dispersal limitation was the key factor influencing fungal community as-sembly. Furthermore, the metabolic profiles of root exudates in response to microbial N limitation varied by family. Microbial function and metabolic limitations were strongly associated with variations in root exudates, especially amino acids and organic acids, which were directly facilitated by crop families. Our results highlight the key roles of root exudates in stimulating microbial community structure and ecological functions from the perspective of micro-bial nutrient limitation and improve our understanding of plant-microbe interactions in agricultural ecosystems. |
| WOS关键词 | RHIZOSPHERE MICROBIOME ; DIVERSITY ; BACTERIAL ; PLANT ; RESPONSES ; DISPERSAL ; TURNOVER ; PATTERNS ; GROWTH |
| 资助项目 | National Natural Science Foundation of China[32201920] ; China Postdoctoral Science Foundation[2022M720099] ; Young Elite Scientists Sponsorship Program by CAST[2022QNRC001] ; China's Agricultural Research System of MOF and MARA[CARS -06-A26] ; Science and Technology Program in Liaoning Province of China[2022 - BS - 166] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000986055400001 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; Young Elite Scientists Sponsorship Program by CAST ; China's Agricultural Research System of MOF and MARA ; Science and Technology Program in Liaoning Province of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/196962]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Gong, Xiangwei; Feng, Baili |
| 作者单位 | 1.Shenyang Agr Univ, Coll Agron, 120 Dongling Rd, Shenyang 110866, Liaoning, Peoples R China 2.Northwest A&F Univ, Coll Agron, State Key Lab Crop Stress Biol Arid Areas, Yangling 712100, Shaanxi, Peoples R China 3.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China 4.Northwest A&F Univ, Coll Agron, 3 Taicheng Rd, Yangling 712100, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gong, Xiangwei,Feng, Yu,Dang, Ke,et al. Linkages of microbial community structure and root exudates: Evidence from microbial nitrogen limitation in soils of crop families[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2023,881:12. |
| APA | Gong, Xiangwei,Feng, Yu,Dang, Ke,Jiang, Ying,Qi, Hua,&Feng, Baili.(2023).Linkages of microbial community structure and root exudates: Evidence from microbial nitrogen limitation in soils of crop families.SCIENCE OF THE TOTAL ENVIRONMENT,881,12. |
| MLA | Gong, Xiangwei,et al."Linkages of microbial community structure and root exudates: Evidence from microbial nitrogen limitation in soils of crop families".SCIENCE OF THE TOTAL ENVIRONMENT 881(2023):12. |
入库方式： OAI收割
来源：地理科学与资源研究所
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