Temperature and soil microorganisms interact to affect Dodonaea viscosa growth on mountainsides
文献类型： 外文期刊
作者： Wang, Xuemei 1 ; Yan, Bangguo 2 ; Fan, Bo 4 ; Shi, Liangtao 4 ; Liu, Gangcai 2 ;
作者机构： 1.Mianyang Normal Univ, Sch Resource & Environm Engn, Mianyang 621000, Sichuan, Peoples R China
2.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, 9,Block 4,Renmingnan Rd, Chengdu 610041, Sichuan, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Yunnan Acad Agr Sci, Inst Trop Ecoagr Sci, Yuanmou 651300, Yunnan, Peoples R China
关键词： Climate change; Temperature; Soil microorganism; Plant-soil interaction; Dodonaea viscosa
期刊名称：PLANT ECOLOGY （ 影响因子：1.854； 五年影响因子：2.194 ）
ISSN： 1385-0237
年卷期： 2018 年 219 卷 7 期
页码：
收录情况： SCI
摘要： There is considerable interest in understanding the drivers of plant growth in the context of climate change. Soil microorganisms play an important role in affecting plant growth and functional traits. However, the role of interaction between soil microbes and temperature in affecting plant growth and functional traits remains unclear. The objective of this research was to investigate the effects of soil microbes, temperature, and their interaction on the growth and functional traits of Dodonaea viscosa in a mountain in Yuanmou county, southwest China. The experiment was conducted in climate chambers with a factorial design of three soil microbial communities (inoculated rhizosphere microbes from high elevation, inoculated rhizosphere microbes from low elevation, and autoclaved control) and two temperature conditions (colder and warmer). D. viscosa planted in inoculated rhizosphere microbes from both high and low elevations produced more total biomass with a lower root-shoot allometric exponent, and accumulated significantly more N and P nutrients than those in an autoclaved control, with no significant differences between the two microbial inoculations. Thus, rhizosphere soil microorganisms had positive effects on D. viscosa growth. However, the effect of the microbes on plant growth strongly depended on temperature. Warming had a positive effect on D. viscosa growth in inoculated rhizosphere microbe treatments, while the positive effect disappeared in the autoclaved control treatment. Our results indicate that temperature and soil microorganisms interact to affect D. viscosa growth. As the climate changes in the future in the studied region, the growth of D. viscosa may be greatly affected both directly and indirectly through the temperature-soil microbe interaction.
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