Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.foreco.2021.119403 |
Different sexual impacts of dioecious Populus euphratica on microbial communities and nitrogen cycle processes in natural forests | |
Guo, Qingxue; Liu, Jiantong; Yu, Lei; Korpelainen, Helena; Li, Chunyang | |
通讯作者 | Li, CY (corresponding author), Hangzhou Normal Univ, Dept Ecol, Coll Life & Environm Sci, Hangzhou 311121, Peoples R China. |
来源期刊 | FOREST ECOLOGY AND MANAGEMENT
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ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2021 |
卷号 | 496 |
英文摘要 | Plant-soil microbe interactions are determined by plant characters. Sexual dimorphism in root development, nitrogen (N) assimilation and resource allocation have been studied in different environments. However, how dioecious plants affect soil microbial communities in natural forests, particularly in low precipitation regions, is still poorly known. In this study, natural Populus euphratica forests were investigated in three arid regions. We hypothesized that males and females impose sex-specific impacts on physiochemical traits of soil, microbial communities and N-cycling processes. We discovered only little sex effect on most physiochemical traits, and bacterial and fungal communities in top soil (0-20 cm) in the three studied forests. However, the sex effect was greater in deep soil. Compared with fungi, the structure and composition of bacterial communities were affected more by plant sex in the rhizosphere and bulk soil. Sex indirectly affected N-cycling processes through a negative impact on the soil water content. Expressions of AOA, AOB, nifH, nirS and nirK in the rhizosphere soil were significantly affected by sex, forest site and their interactions. Proteobacteria, Actinobacteria and Firmicutes in the rhizosphere and bulk soils of P. euphratica males showed more significant effects on ammoxidation, N fixation, denitrification and protease activities when compared to females. The results suggest that sexual differences in shaping bacterial communities and affecting N-cycling processes are greater when the soil becomes drier. Thus, low precipitation causes intense sex differences in the nitrogen uptake and use efficiency. Our study highlights the importance of sexual effects on shaping specific microbial communities and N-cycling processes. |
英文关键词 | Sexual dimorphism Plant-microbe interaction Water availability Nitrogen use efficiency |
类型 | Article |
语种 | 英语 |
收录类别 | SCI-E |
WOS记录号 | WOS:000672642300006 |
WOS关键词 | SPECIES RICHNESS ; SOIL BACTERIAL ; PLANT TRAITS ; CATHAYANA ; GROWTH ; COMPETITION |
WOS类目 | Forestry |
WOS研究方向 | Forestry |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/363253 |
作者单位 | [Guo, Qingxue; Liu, Jiantong; Yu, Lei; Li, Chunyang] Hangzhou Normal Univ, Dept Ecol, Coll Life & Environm Sci, Hangzhou 311121, Peoples R China; [Korpelainen, Helena] Univ Helsinki, Viikki Plant Sci Ctr, Dept Agr Sci, POB 27, FI-00014 Helsinki, Finland |
推荐引用方式 GB/T 7714 | Guo, Qingxue,Liu, Jiantong,Yu, Lei,et al. Different sexual impacts of dioecious Populus euphratica on microbial communities and nitrogen cycle processes in natural forests[J],2021,496. |
APA | Guo, Qingxue,Liu, Jiantong,Yu, Lei,Korpelainen, Helena,&Li, Chunyang.(2021).Different sexual impacts of dioecious Populus euphratica on microbial communities and nitrogen cycle processes in natural forests.FOREST ECOLOGY AND MANAGEMENT,496. |
MLA | Guo, Qingxue,et al."Different sexual impacts of dioecious Populus euphratica on microbial communities and nitrogen cycle processes in natural forests".FOREST ECOLOGY AND MANAGEMENT 496(2021). |
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