Forest nutrient context modulates microbial contributions to nitrogen acquisition during Phytolacca americana invasion
文献类型：期刊论文
| 作者 | Chen, Danli1; Bai, Xinfu1,6; Zhuge, Yanhui1,5; Liu, Zhongjie1,3,4; Li, Haokun1; Qu, Zhaolei1; Li, Xinmeng1; Tiribelli, Florencia2; Hou, Yuping1 |
| 刊名 | APPLIED SOIL ECOLOGY
 |
| 出版日期 | 2026-02-01 |
| 卷号 | 218页码:10 |
| 关键词 | Biological invasions Context-dependent feedbacks Nitrogen dynamics Plant age Plant-microbe interactions |
| ISSN号 | 0929-1393 |
| DOI | 10.1016/j.apsoil.2025.106668 |
| 通讯作者 | Hou, Yuping(hou_yuping@163.com) |
| 英文摘要 | Invasive plants often manipulate soil nitrogen (N)-cycling microbes to meet their N demands and facilitate establishment. However, how these interactions shift with plant age and across habitats remains unclear. To address this, we measured plant tissue nutrients and stoichiometric ratios, soil nutrients, microbial biomass, N transformation rates, and characterized rhizosphere N-cycling microbial communities associated with the invasive plant Phytolacca americana at varying ages (1, 5, and 8 years) in two forest types (Pinus thunbergii and Robinia pseudoacacia) that differ in dominant vegetation and belowground nutrient availability. We found that P. americana exhibited forest-specific temporal trajectories of microbial N reliance. In the P. thunbergii forest with low soil nutrient availability, microbial facilitation of N acquisition peaked at age 5, marked by elevated ammonium and reduced leaf N:P ratio, but declined with age as microbial activity waned. In contrast, in the R. pseudoacacia forest with high soil nutrient availability, P. americana sustained root N accumulation by suppressing microbial ammonium assimilation while enriching taxa that maintained N turnover, ensuring long-term access to available N. Our study indicates that P. americana flexibly modulates rhizosphere N-cycling microbes along its invasion trajectory, shifting from transient facilitation under nutrient-poor conditions to sustained control under nutrient-rich conditions. These findings reflect a context-dependent N acquisition strategy and underscore the importance of integrating temporal progression and environmental heterogeneity into predictive frameworks of invasion dynamics. |
| WOS关键词 | PLANT INVASION ; SOIL ; FEEDBACK ; COMPETITION ; MICROORGANISMS ; CONSEQUENCES ; MECHANISMS ; FRAMEWORK ; DRIVEN ; GRASS |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:001636125400001 |
| 资助机构 | National Natural Science Foundation of China ; Natural Science Foundation of Shandong Province ; Fundamental Research Projects of Science & Technology Innovation and Development Plan in Yantai City |
| 源URL | [http://ir.yic.ac.cn/handle/133337/41922]  |
| 专题 | 烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室 |
| 通讯作者 | Hou, Yuping |
| 作者单位 | 1.Ludong Univ, Coll Life Sci, Yantai 264025, Peoples R China 2.Univ British Columbia, Fac Forestry, Ctr Wildfire Coexistence, Vancouver, BC V6T 1Z4, Canada 3.Chinese Acad Sci, Yellow River Delta Field Observat & Res Stn Coasta, Dongying 257000, Peoples R China 4.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China 5.Chinese Acad Sci, Northeast Inst Geog & Agroecol, Key Lab Black Soils Conservat & Utilizat, Changchun 130102, Peoples R China 6.Yantai Inst Technol, Sch Food Sci & Bioengn, Yantai 264003, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Danli,Bai, Xinfu,Zhuge, Yanhui,et al. Forest nutrient context modulates microbial contributions to nitrogen acquisition during Phytolacca americana invasion[J]. APPLIED SOIL ECOLOGY,2026,218:10. |
| APA | Chen, Danli.,Bai, Xinfu.,Zhuge, Yanhui.,Liu, Zhongjie.,Li, Haokun.,...&Hou, Yuping.(2026).Forest nutrient context modulates microbial contributions to nitrogen acquisition during Phytolacca americana invasion.APPLIED SOIL ECOLOGY,218,10. |
| MLA | Chen, Danli,et al."Forest nutrient context modulates microbial contributions to nitrogen acquisition during Phytolacca americana invasion".APPLIED SOIL ECOLOGY 218(2026):10. |
入库方式： OAI收割
来源：烟台海岸带研究所
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