干旱区生态环境知识资源中心(Arid): Different sexual impacts of dioecious Populus euphratica on microbial communities and nitrogen cycle processes in natural forests

Arid

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
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).