Soil fungal abundance and diversity:: another victim of the invasive plant Centaurea maculosa

被引:64
作者
Broz, Amanda K. [1 ]
Manter, Daniel K. [2 ]
Vivanco, Jorge M. [1 ]
机构
[1] Colorado State Univ, Ctr Rhizosphere Biol, Ft Collins, CO 80523 USA
[2] USDA ARS, Soil Plant Nutr Res Unit, Ft Collins, CO 80522 USA
基金
美国国家科学基金会;
关键词
ecology; length heterogeneity; microbial community; rhizosphere; qPCR; weed;
D O I
10.1038/ismej.2007.81
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
Interactions between plants and soil microbes are important determinants of both above- and belowground community composition, and ultimately ecosystem function. As exotic plants continue to invade and modify native plant communities, there has been increasing interest in determining the influence of exotic invasives on native soil microbial communities. Here, using highly sensitive molecular techniques, we examine fungal abundance and diversity in the soil surrounding a particularly aggressive invasive plant species in North America, Centaurea maculosa Lam. In mixed stands, we show that this invasive weed can alter the native fungal community composition within its own rhizosphere and that of neighboring native plants. At higher densities, the effect of C. maculosa on native soil fungal communities was even greater. Our results demonstrate that this invasive weed can have significant effects not only on visible aboveground biodiversity but also on the native soil microbial community that extends beyond its rhizosphere.
引用
收藏
页码:763 / 765
页数:3
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